Sustainable Chemistry for Climate Action最新文献_第9页

Eco-friendly alternatives to conventional solvents: Innovations and applications in pharmaceutical manufacturing 传统溶剂的环保替代品：创新和在制药制造中的应用

IF 5.4

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-10-12 DOI: 10.1016/j.scca.2025.100140

Bibhas Pandit, Projesh Saha

In response to rising ecological issues and regulatory restrictions, the pharmaceutical sector is increasingly using green solvents as environmentally friendly substitutes for conventional solvents. Emphasizing the application of bio-based solvents, water-based solvents, supercritical fluids, and deep eutectic solvents, this review explores the developments in green chemistry in the pharmaceutical sector. Bio-based solvents, such as dimethyl carbonate, limonene, and ethyl lactate, have low toxicity and biodegradable properties and ensure decreased release of volatile organic compounds. Aqueous solutions of acids, bases, and alcohols are examples of water-based solvents that are non-inflammable and non-toxic substitutes. Bioactive chemicals are extracted selectively and efficiently with little harm to the ecosystem using supercritical CO₂ and other supercritical fluids. Deep eutectic solvents (DESs), which are created by joining donors and acceptors of hydrogen bonds, have special qualities and are used in chemical synthesis and extraction procedures. Case examples of the pharmaceutical industry's successful implementation of new green solvent systems are included in this review. However, issues related to technological performance, scalability, economic viability, and regulatory frameworks must be resolved for broad acceptance. Emerging possibilities for innovative green solvent systems include hybrid solutions, the incorporation of renewable energy resources, and the implementation of computational methods. For optimal performance, environmental preservation, and sustainable drug development, the pharmaceutical sector must switch to green solvents.

为了应对日益严重的生态问题和监管限制，制药部门越来越多地使用绿色溶剂作为传统溶剂的环保替代品。重点介绍了生物基溶剂、水基溶剂、超临界流体和深共晶溶剂的应用，探讨了绿色化学在制药领域的发展。生物基溶剂，如碳酸二甲酯、柠檬烯和乳酸乙酯，具有低毒和可生物降解的特性，并确保减少挥发性有机化合物的释放。酸、碱和醇的水溶液是水基溶剂的例子，它们是不燃和无毒的替代品。利用超临界二氧化碳和其他超临界流体有选择性地、高效地提取生物活性化学物质，对生态系统的危害很小。深共晶溶剂（DESs）是由氢键的供体和受体结合而成的，具有特殊的性质，用于化学合成和萃取过程。制药行业成功实施新型绿色溶剂系统的案例包括在这篇综述中。然而，与技术性能、可扩展性、经济可行性和监管框架相关的问题必须得到解决，才能得到广泛接受。创新的绿色溶剂系统的可能性包括混合解决方案，可再生能源资源的结合，以及计算方法的实施。为了获得最佳性能，环境保护和可持续的药物开发，制药部门必须转向绿色溶剂。

{"title":"Eco-friendly alternatives to conventional solvents: Innovations and applications in pharmaceutical manufacturing","authors":"Bibhas Pandit, Projesh Saha","doi":"10.1016/j.scca.2025.100140","DOIUrl":"10.1016/j.scca.2025.100140","url":null,"abstract":"<div><div>In response to rising ecological issues and regulatory restrictions, the pharmaceutical sector is increasingly using green solvents as environmentally friendly substitutes for conventional solvents. Emphasizing the application of bio-based solvents, water-based solvents, supercritical fluids, and deep eutectic solvents, this review explores the developments in green chemistry in the pharmaceutical sector. Bio-based solvents, such as dimethyl carbonate, limonene, and ethyl lactate, have low toxicity and biodegradable properties and ensure decreased release of volatile organic compounds. Aqueous solutions of acids, bases, and alcohols are examples of water-based solvents that are non-inflammable and non-toxic substitutes. Bioactive chemicals are extracted selectively and efficiently with little harm to the ecosystem using supercritical CO<sub>2</sub> and other supercritical fluids. Deep eutectic solvents (DESs), which are created by joining donors and acceptors of hydrogen bonds, have special qualities and are used in chemical synthesis and extraction procedures. Case examples of the pharmaceutical industry's successful implementation of new green solvent systems are included in this review. However, issues related to technological performance, scalability, economic viability, and regulatory frameworks must be resolved for broad acceptance. Emerging possibilities for innovative green solvent systems include hybrid solutions, the incorporation of renewable energy resources, and the implementation of computational methods. For optimal performance, environmental preservation, and sustainable drug development, the pharmaceutical sector must switch to green solvents.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100140"},"PeriodicalIF":5.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of nanomaterials in enhancing membrane-based treatment for emerging contaminants: A review 纳米材料在增强膜基处理新兴污染物中的作用：综述

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-05-29 DOI: 10.1016/j.scca.2025.100092

Zubair Hashmi , Ibrahim Maina Idriss , Femiana Gapsari , Norazanita Samsuddin , Muhammad Roil Bilad

Nanomaterial-enhanced membranes offer a promising solution for water treatment, improving permeability, selectivity, and fouling resistance. However, their integration into existing systems requires further exploration, particularly in real-world conditions. This systematic review focuses on key nanomaterials—graphene oxide, carbon nanotubes, metal-organic frameworks, and MXenes—evaluating their effectiveness in removing emerging contaminants and enhancing membrane longevity. The review synthesizes findings from recent literature on nanomaterial properties, performance metrics, experimental techniques, and case studies, providing a comprehensive evaluation. It highlights the superior contaminant rejection, antifouling properties, and structural enhancements of nanomaterial-based membranes compared to conventional systems. Despite these advantages, challenges such as high production costs, scalability issues, environmental concerns, and regulatory barriers hinder widespread adoption. Further research is needed to develop cost-effective synthesis methods, sustainable production, and environmentally safe disposal practices. Additionally, artificial intelligence and machine learning offer promising opportunities for optimizing membrane design and accelerating the development of advanced filtration technologies. This study contributes to the knowledge base by identifying key research gaps and proposing future directions, emphasizing the integration of artificial intelligence, machine learning, and sustainable practices in nanomaterial-enhanced membranes, with the goal of advancing their large-scale implementation for sustainable water purification.

纳米材料增强膜为水处理提供了一个很有前途的解决方案，提高了渗透性、选择性和抗污性。然而，将它们集成到现有系统中需要进一步探索，特别是在现实世界中。这篇系统综述的重点是关键的纳米材料——氧化石墨烯、碳纳米管、金属有机框架和mxenes——评估它们在去除新出现的污染物和提高膜寿命方面的有效性。这篇综述综合了最近关于纳米材料特性、性能指标、实验技术和案例研究的文献，提供了一个全面的评估。与传统系统相比，它突出了纳米材料基膜优越的污染物排斥，防污性能和结构增强。尽管有这些优势，但诸如高生产成本、可扩展性问题、环境问题和监管障碍等挑战阻碍了广泛采用。需要进一步研究以发展具有成本效益的合成方法、可持续生产和环境安全的处置方法。此外，人工智能和机器学习为优化膜设计和加速先进过滤技术的发展提供了有希望的机会。本研究通过确定关键研究差距和提出未来方向，强调人工智能，机器学习和纳米材料增强膜的可持续实践的整合，以推进其大规模实施可持续水净化的目标，为知识库做出贡献。

{"title":"The role of nanomaterials in enhancing membrane-based treatment for emerging contaminants: A review","authors":"Zubair Hashmi , Ibrahim Maina Idriss , Femiana Gapsari , Norazanita Samsuddin , Muhammad Roil Bilad","doi":"10.1016/j.scca.2025.100092","DOIUrl":"10.1016/j.scca.2025.100092","url":null,"abstract":"<div><div>Nanomaterial-enhanced membranes offer a promising solution for water treatment, improving permeability, selectivity, and fouling resistance. However, their integration into existing systems requires further exploration, particularly in real-world conditions. This systematic review focuses on key nanomaterials—graphene oxide, carbon nanotubes, metal-organic frameworks, and MXenes—evaluating their effectiveness in removing emerging contaminants and enhancing membrane longevity. The review synthesizes findings from recent literature on nanomaterial properties, performance metrics, experimental techniques, and case studies, providing a comprehensive evaluation. It highlights the superior contaminant rejection, antifouling properties, and structural enhancements of nanomaterial-based membranes compared to conventional systems. Despite these advantages, challenges such as high production costs, scalability issues, environmental concerns, and regulatory barriers hinder widespread adoption. Further research is needed to develop cost-effective synthesis methods, sustainable production, and environmentally safe disposal practices. Additionally, artificial intelligence and machine learning offer promising opportunities for optimizing membrane design and accelerating the development of advanced filtration technologies. This study contributes to the knowledge base by identifying key research gaps and proposing future directions, emphasizing the integration of artificial intelligence, machine learning, and sustainable practices in nanomaterial-enhanced membranes, with the goal of advancing their large-scale implementation for sustainable water purification.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100092"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144223298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Opportunities for renewable energy in large Saskatchewan irrigation projects evaluated in HOMER pro software 可再生能源在萨斯喀彻温省大型灌溉项目的机会在荷马专业软件评估

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-07-08 DOI: 10.1016/j.scca.2025.100095

David Ross-Hopley , Ryan Husband , Lord Ugwu , Hussameldin Ibrahim

With a less predictable climate, irrigated agriculture may contribute to global food security. Irrigation requires large water and energy inputs – creating a water-food-energy nexus. In Saskatchewan, irrigation typically sources energy from the provincial electrical utility, SaskPower. Using current utility infrastructure, dependence deepens the use of conventional fossil fuel power. With major cost decreases, renewable energy alternatives are increasingly techno-economically competitive. In undertaking energy system modelling using HOMER Pro software, this study investigates the viability of renewable energy for irrigation projects in Saskatchewan. Modelling includes a conventional energization scenario (energy provision through grid interconnection), a combination of conventional and renewable scenario, as well as a 100 % renewable scenario. Further, sensitivity analysis has been undertaken for permitted capacity shortages, utility rates, grid interaction and carbon pricing. The study provides the levelized cost of electricity for each scenario. Baseline results range from $0.0154/kWh for optimised hybrid systems, $0.1429/kWh for grid systems, and as high as $1.1101/kWh 100 % renewable energy systems. The success of renewable energy-driven integration is closely linked to the presence of a grid connection, and the rates governing interactions.

在气候难以预测的情况下，灌溉农业可能有助于全球粮食安全。灌溉需要大量的水和能源投入，从而形成水-食物-能源的联系。在萨斯喀彻温省，灌溉的能源通常来自省电力公司SaskPower。利用现有的公用事业基础设施，依赖加深了对传统化石燃料电力的使用。随着成本的大幅下降，可再生能源替代品在技术经济上越来越具有竞争力。在利用HOMER Pro软件进行能源系统建模时，本研究调查了萨斯喀彻温省灌溉项目中可再生能源的可行性。建模包括传统的通电情景（通过电网互联提供能源），传统和可再生情景的组合，以及100%可再生情景。此外，还对允许的容量短缺、公用事业费率、电网相互作用和碳定价进行了敏感性分析。该研究提供了每种情况下的平均电力成本。基线结果范围从优化混合系统的0.0154美元/千瓦时，电网系统的0.1429美元/千瓦时，以及高达1.1101美元/千瓦时的100%可再生能源系统。可再生能源驱动的整合的成功与电网连接的存在以及控制相互作用的费率密切相关。

{"title":"Opportunities for renewable energy in large Saskatchewan irrigation projects evaluated in HOMER pro software","authors":"David Ross-Hopley , Ryan Husband , Lord Ugwu , Hussameldin Ibrahim","doi":"10.1016/j.scca.2025.100095","DOIUrl":"10.1016/j.scca.2025.100095","url":null,"abstract":"<div><div>With a less predictable climate, irrigated agriculture may contribute to global food security. Irrigation requires large water and energy inputs – creating a water-food-energy nexus. In Saskatchewan, irrigation typically sources energy from the provincial electrical utility, SaskPower. Using current utility infrastructure, dependence deepens the use of conventional fossil fuel power. With major cost decreases, renewable energy alternatives are increasingly techno-economically competitive. In undertaking energy system modelling using HOMER Pro software, this study investigates the viability of renewable energy for irrigation projects in Saskatchewan. Modelling includes a conventional energization scenario (energy provision through grid interconnection), a combination of conventional and renewable scenario, as well as a 100 % renewable scenario. Further, sensitivity analysis has been undertaken for permitted capacity shortages, utility rates, grid interaction and carbon pricing. The study provides the levelized cost of electricity for each scenario. Baseline results range from $0.0154/kWh for optimised hybrid systems, $0.1429/kWh for grid systems, and as high as $1.1101/kWh 100 % renewable energy systems. The success of renewable energy-driven integration is closely linked to the presence of a grid connection, and the rates governing interactions.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100095"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Controlled electrochemical synthesis of high-purity stannous sulphate (SnSO4) microparticles via Nafion 115-assisted membrane separation naion 115辅助膜分离控制电化学合成高纯硫酸亚锡（SnSO4）微粒

IF 5.4

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-09-05 DOI: 10.1016/j.scca.2025.100112

Amelia Andriani , Widi Astuti , Agus Prasetya , Widya Ernayati Kosimaningrum , Hendra Prasetia , Himawan Tri Bayu Murti Petrus

Using a two-compartment electrolysis system separated by a Nafion 115 membrane, the present study synthesizes high-purity stannous sulfate (SnSO₄) through an electrochemical method. In this process, tin metal and graphite serve as the anode and cathode, respectively, while sulfuric acid acts as the electrolyte. The effects of H₂SO₄ concentration, applied voltage, and electrolysis duration on SnSO₄ yield, particle morphology, and crystal structure are systematically investigated. Application of the Taguchi method enables optimization of these parameters by evaluating the signal-to-noise (S/N) ratio, with the optimum yield of 98.83 % obtained under 0.5 mol·L^-1H₂SO₄, 3.0 V, and 8 h of electrolysis. Under these conditions, the synthesized SnSO₄ exhibits an orthorhombic phase with high crystallinity and a prismatic morphology, as confirmed by FTIR, XRD, SEM, and particle size distribution analysis. The average particle diameter is approximately 1.06 ± 0.003 µm, indicating a narrow size distribution and uniform shape. Increasing acid concentration and electrolysis time enhances both current efficiency and crystalline quality, while excessive voltage leads to side reactions and the formation of morphological imperfections. These findings suggest that precise control of electrochemical parameters is essential for tailoring the structural and morphological properties of SnSO₄, making the electrochemical route promising for scalable and efficient production of high-quality tin-based materials.

采用naion 115膜分离的双室电解系统，通过电化学方法合成了高纯度硫酸亚锡（SnSO₄）。在这个过程中，金属锡和石墨分别作为阳极和阴极，硫酸作为电解液。系统地研究了H₂SO₄浓度、施加电压和电解时间对SnSO₄产率、颗粒形貌和晶体结构的影响。采用田口法通过评价信噪比（S/N）对这些参数进行优化，在0.5 mol·L-1H₂SO₄、3.0 V、电解8 h的条件下，产率达到了98.83%。FTIR、XRD、SEM和粒径分布分析证实，在此条件下合成的SnSO₄具有高结晶度的正方晶相和棱柱形形貌。平均粒径约为1.06±0.003µm，粒径分布窄，形状均匀。增加酸浓度和电解时间可以提高电流效率和晶体质量，而过高的电压会导致副反应和形态缺陷的形成。这些发现表明，精确控制电化学参数对于调整SnSO₄的结构和形态特性至关重要，这使得电化学路线有望扩展和高效地生产高质量的锡基材料。

{"title":"Controlled electrochemical synthesis of high-purity stannous sulphate (SnSO4) microparticles via Nafion 115-assisted membrane separation","authors":"Amelia Andriani , Widi Astuti , Agus Prasetya , Widya Ernayati Kosimaningrum , Hendra Prasetia , Himawan Tri Bayu Murti Petrus","doi":"10.1016/j.scca.2025.100112","DOIUrl":"10.1016/j.scca.2025.100112","url":null,"abstract":"<div><div>Using a two-compartment electrolysis system separated by a Nafion 115 membrane, the present study synthesizes high-purity stannous sulfate (SnSO₄) through an electrochemical method. In this process, tin metal and graphite serve as the anode and cathode, respectively, while sulfuric acid acts as the electrolyte. The effects of H₂SO₄ concentration, applied voltage, and electrolysis duration on SnSO₄ yield, particle morphology, and crystal structure are systematically investigated. Application of the Taguchi method enables optimization of these parameters by evaluating the signal-to-noise (S/N) ratio, with the optimum yield of 98.83 % obtained under 0.5 mol·L<sup>-1</sup>H₂SO₄, 3.0 V, and 8 h of electrolysis. Under these conditions, the synthesized SnSO₄ exhibits an orthorhombic phase with high crystallinity and a prismatic morphology, as confirmed by FTIR, XRD, SEM, and particle size distribution analysis. The average particle diameter is approximately 1.06 ± 0.003 µm, indicating a narrow size distribution and uniform shape. Increasing acid concentration and electrolysis time enhances both current efficiency and crystalline quality, while excessive voltage leads to side reactions and the formation of morphological imperfections. These findings suggest that precise control of electrochemical parameters is essential for tailoring the structural and morphological properties of SnSO₄, making the electrochemical route promising for scalable and efficient production of high-quality tin-based materials.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100112"},"PeriodicalIF":5.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel hydrogen and oxygen production model for hospitals from medical waste: Case in Jordan 医院利用医疗废物生产氢气和氧气的新模式：约旦案例

IF 5.4

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-09-05 DOI: 10.1016/j.scca.2025.100117

Jumana Alsarhan , K.A. Al-attab , Ibrahim I. Enagi , Yu Kok Hwa , Abdulrahman Mohamed

Jordan is currently grappling with critical energy generation challenges, primarily due to its substantial dependence on imported energy from neighbouring countries. Concurrently, the nation faces persistent waste management difficulties, particularly concerning medical waste (MW), amid an ongoing economic crisis. In response to these dual challenges, the present study proposes a model for hydrogen and oxygen production from MW as a feedstock in a case study of Jordanian capital of Amman. The model integrates both empirical data and insights derived from the existing literature. To assess the influence of key operational variables, the model was evaluated under 27 distinct scenarios using full factorial DoE statistical optimization. The findings indicate that optimal performance was achieved at gasification temperature of 800 °C, steam to biomass ratio (S/B) of 2.0, and equivalence ratio (ER) of 0.4, yielding hydrogen and oxygen production rates of 67 kg/h and 519 kg/h, respectively. Additionally, the system attained exergy and energy efficiencies of 84 % and 72 %, respectively, with electrical output of 1.1 MW and 52 kW from the SOFC and ORC, respectively. These outcomes underscore the feasibility of harnessing MW for sustainable energy generation, offering a promising solution to alleviate the economic, environmental, and public health impacts historically associated with improper MW disposal.

约旦目前正在努力应对能源生产方面的重大挑战，这主要是由于它严重依赖从邻国进口能源。与此同时，在持续的经济危机中，国家面临着持续的废物管理困难，特别是医疗废物管理困难。为了应对这些双重挑战，本研究以约旦首都安曼为例，提出了一种以MW为原料生产氢气和氧气的模型。该模型整合了经验数据和来自现有文献的见解。为了评估关键操作变量的影响，采用全因子DoE统计优化方法对27种不同情景下的模型进行了评估。结果表明，当气化温度为800℃，蒸汽与生物质比（S/B）为2.0，等效比（ER）为0.4时，产氢率为67 kg/h，产氧率为519 kg/h。此外，该系统的火用和能源效率分别达到84%和72%，SOFC和ORC的电力输出分别为1.1 MW和52 kW。这些结果强调了利用兆瓦进行可持续能源生产的可行性，提供了一个有希望的解决方案，以减轻历史上与兆瓦处置不当有关的经济、环境和公共卫生影响。

{"title":"A novel hydrogen and oxygen production model for hospitals from medical waste: Case in Jordan","authors":"Jumana Alsarhan , K.A. Al-attab , Ibrahim I. Enagi , Yu Kok Hwa , Abdulrahman Mohamed","doi":"10.1016/j.scca.2025.100117","DOIUrl":"10.1016/j.scca.2025.100117","url":null,"abstract":"<div><div>Jordan is currently grappling with critical energy generation challenges, primarily due to its substantial dependence on imported energy from neighbouring countries. Concurrently, the nation faces persistent waste management difficulties, particularly concerning medical waste (MW), amid an ongoing economic crisis. In response to these dual challenges, the present study proposes a model for hydrogen and oxygen production from MW as a feedstock in a case study of Jordanian capital of Amman. The model integrates both empirical data and insights derived from the existing literature. To assess the influence of key operational variables, the model was evaluated under 27 distinct scenarios using full factorial DoE statistical optimization. The findings indicate that optimal performance was achieved at gasification temperature of 800 °C, steam to biomass ratio (S/B) of 2.0, and equivalence ratio (ER) of 0.4, yielding hydrogen and oxygen production rates of 67 kg/h and 519 kg/h, respectively. Additionally, the system attained exergy and energy efficiencies of 84 % and 72 %, respectively, with electrical output of 1.1 MW and 52 kW from the SOFC and ORC, respectively. These outcomes underscore the feasibility of harnessing MW for sustainable energy generation, offering a promising solution to alleviate the economic, environmental, and public health impacts historically associated with improper MW disposal.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100117"},"PeriodicalIF":5.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the adsorption behaviour of nitrogen-doped porous carbons (NDPCs) towards carbon dioxide capture using machine learning techniques 利用机器学习技术揭示氮掺杂多孔碳（NDPCs）对二氧化碳捕获的吸附行为

IF 5.4

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-10-24 DOI: 10.1016/j.scca.2025.100148

Sarvesh Namdeo , Vimal Chandra Srivastava , Paritosh Mohanty

The urgent need to mitigate climate change has driven extensive research into effective carbon capture technologies. Among these, nitrogen-doped porous carbons (NDPCs) have emerged as a promising material for CO₂ capture due to their large surface area, tunable porosity, and nitrogen functionalities. This paper investigates the adsorption behaviour of NDPCs towards CO₂ using advanced machine learning (ML) techniques. These ML models are applied to different physicochemical properties of NDPCs to unveil the adsorption phenomenon of CO₂ towards NDPCs. Gradient boosting decision trees (GBDT) performed best, with training and test R² values of 0.99 and 0.88, respectively. Explainable machine learning (XML) has also been applied to find the intrinsic relation between NDPCs' properties and CO₂ uptake. Combined factor partial dependence plots revealed the optimal range of the features for the CO₂ uptake. Individual conditional expectation-partial dependence plots (ICE-PDPs) show the dependence of CO₂ uptake on each instance of input features. To examine the impact of input features on CO₂ uptake, Shapley Additive exPlanations (SHAP) have been employed. For nitrogen functionalities, the main impact came from pyridinic-N (N-6) and graphitic-N/quaternary-N (N-Q) compared to pyrolytic-N (N-5) and oxidized-N (N-X).

缓解气候变化的迫切需要推动了对有效碳捕获技术的广泛研究。其中，氮掺杂多孔碳（NDPCs）由于其大表面积、可调孔隙度和氮功能而成为一种有前途的二氧化碳捕获材料。本文利用先进的机器学习（ML）技术研究了NDPCs对CO2的吸附行为。将这些ML模型应用于不同理化性质的NDPCs，揭示CO2对NDPCs的吸附现象。梯度增强决策树（GBDT）表现最好，训练和检验R2分别为0.99和0.88。可解释机器学习（XML）也被应用于发现NDPCs的性质与CO2吸收之间的内在关系。组合因子偏相关图揭示了CO2吸收特征的最佳范围。个体条件期望-部分依赖图（ice - pdp）显示了CO2吸收对每个输入特征实例的依赖。为了检验输入特征对二氧化碳吸收的影响，采用了Shapley加性解释（SHAP）。对氮官能团的影响主要来自吡啶- n （N-6）和石墨- n /季铵盐- n (N-Q)，而不是热解- n （N-5）和氧化- n （N-X）。

{"title":"Unveiling the adsorption behaviour of nitrogen-doped porous carbons (NDPCs) towards carbon dioxide capture using machine learning techniques","authors":"Sarvesh Namdeo , Vimal Chandra Srivastava , Paritosh Mohanty","doi":"10.1016/j.scca.2025.100148","DOIUrl":"10.1016/j.scca.2025.100148","url":null,"abstract":"<div><div>The urgent need to mitigate climate change has driven extensive research into effective carbon capture technologies. Among these, nitrogen-doped porous carbons (NDPCs) have emerged as a promising material for CO<sub>2</sub> capture due to their large surface area, tunable porosity, and nitrogen functionalities. This paper investigates the adsorption behaviour of NDPCs towards CO<sub>2</sub> using advanced machine learning (ML) techniques. These ML models are applied to different physicochemical properties of NDPCs to unveil the adsorption phenomenon of CO<sub>2</sub> towards NDPCs. Gradient boosting decision trees (GBDT) performed best, with training and test R<sup>2</sup> values of 0.99 and 0.88, respectively. Explainable machine learning (XML) has also been applied to find the intrinsic relation between NDPCs' properties and CO<sub>2</sub> uptake. Combined factor partial dependence plots revealed the optimal range of the features for the CO<sub>2</sub> uptake. Individual conditional expectation-partial dependence plots (ICE-PDPs) show the dependence of CO<sub>2</sub> uptake on each instance of input features. To examine the impact of input features on CO<sub>2</sub> uptake, Shapley Additive exPlanations (SHAP) have been employed. For nitrogen functionalities, the main impact came from pyridinic-N (N-6) and graphitic-N/quaternary-N (N-Q) compared to pyrolytic-N (N-5) and oxidized-N (N-X).</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100148"},"PeriodicalIF":5.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145474129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of alkali/transition metals, metal- and covalent-organic frameworks configurations on Cu-based catalysts for converting CO2 into value-added fuels: A systematic review for possibilities and challenges 碱/过渡金属、金属和共价有机框架结构在cu基催化剂上将CO2转化为增值燃料的作用：对可能性和挑战的系统回顾

IF 5.4

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-10-31 DOI: 10.1016/j.scca.2025.100151

Mohammadreza Mohammadpour , Amirreza Mohammadpour , Alireza Alipoor , Yousef Tamsilian

The pressing necessity to tackle climate change has attracted growing interest toward technologies that transform CO₂, its conversion into value-added fuels such as methanol. This review offers an overview of the latest advancement in Cu-based catalysts for CO₂ reduction to value-added fuels, focusing on the role of alkali/transition metals, metal-organic frameworks (MOFs), and covalent organic frameworks (COFs). Following this, the review investigates the CO₂ reduction mechanisms, different kinds of Cu-based catalysts, and strategies for catalyst design/optimization. Developments in catalyst performance metrics are discussed, highlighting the potential of Cu-based catalysts to efficiently generate a spectrum of value-added fuels from CO₂. Despite these advances, challenges such as catalyst deactivation under harsh conditions, precise control of active-site distribution, and the scalability and cost-effectiveness of advanced materials are significant hurdles which deserves to focus on. In addition to this, the infusion of alkali/transition promoters into Cu-based catalysts is studied, indicating improved catalytic selectivity and activity. The review further centers around the distinctive properties of COFs/MOFs, e.g., pore structures, surface area, and the capability to create well-defined active sites, which make them promising supports for Cu-based catalysts. Challenges in the field, encompassing COFs thermal properties, catalyst stability, and precise control of metal site distribution, are addressed. Furthermore, the review deals with the issues regarding the scalability and cost-effectiveness of these advanced materials for industrial utilizations. Building on these insights, future research directions are outlined, highlighting the requirement for interdisciplinary efforts to overcome current limitations and fully realize the potential of Cu-based catalysts in CO₂ reduction.

随着应对气候变化的迫近，人们越来越关注将二氧化碳转化为甲醇等增值燃料的技术。本文综述了cu基催化剂在CO2还原成高附加值燃料中的最新进展，重点介绍了碱/过渡金属、金属-有机框架（MOFs）和共价有机框架（COFs）的作用。在此基础上，综述了铜基催化剂的碳还原机理、铜基催化剂的种类以及铜基催化剂的设计与优化策略。讨论了催化剂性能指标的发展，强调了cu基催化剂在从二氧化碳中有效产生一系列增值燃料方面的潜力。尽管取得了这些进步，但在恶劣条件下催化剂失活、活性位点分布的精确控制、先进材料的可扩展性和成本效益等挑战仍是值得关注的重大障碍。此外，对碱/过渡促进剂注入cu基催化剂进行了研究，表明其提高了催化选择性和活性。综述进一步围绕COFs/ mof的独特性质，例如孔结构，表面积和创建明确活性位点的能力，使其成为cu基催化剂的有希望的载体。解决了该领域的挑战，包括COFs热性能，催化剂稳定性和金属位置分布的精确控制。此外，本文还讨论了这些先进材料在工业应用中的可扩展性和成本效益问题。基于这些见解，概述了未来的研究方向，强调了跨学科努力的需求，以克服当前的局限性，充分发挥cu基催化剂在CO2还原中的潜力。

{"title":"Role of alkali/transition metals, metal- and covalent-organic frameworks configurations on Cu-based catalysts for converting CO2 into value-added fuels: A systematic review for possibilities and challenges","authors":"Mohammadreza Mohammadpour , Amirreza Mohammadpour , Alireza Alipoor , Yousef Tamsilian","doi":"10.1016/j.scca.2025.100151","DOIUrl":"10.1016/j.scca.2025.100151","url":null,"abstract":"<div><div>The pressing necessity to tackle climate change has attracted growing interest toward technologies that transform CO₂, its conversion into value-added fuels such as methanol. This review offers an overview of the latest advancement in Cu-based catalysts for CO<sub>2</sub> reduction to value-added fuels, focusing on the role of alkali/transition metals, metal-organic frameworks (MOFs), and covalent organic frameworks (COFs). Following this, the review investigates the CO<sub>2</sub> reduction mechanisms, different kinds of Cu-based catalysts, and strategies for catalyst design/optimization. Developments in catalyst performance metrics are discussed, highlighting the potential of Cu-based catalysts to efficiently generate a spectrum of value-added fuels from CO<sub>2</sub>. Despite these advances, challenges such as catalyst deactivation under harsh conditions, precise control of active-site distribution, and the scalability and cost-effectiveness of advanced materials are significant hurdles which deserves to focus on. In addition to this, the infusion of alkali/transition promoters into Cu-based catalysts is studied, indicating improved catalytic selectivity and activity. The review further centers around the distinctive properties of COFs/MOFs, e.g., pore structures, surface area, and the capability to create well-defined active sites, which make them promising supports for Cu-based catalysts. Challenges in the field, encompassing COFs thermal properties, catalyst stability, and precise control of metal site distribution, are addressed. Furthermore, the review deals with the issues regarding the scalability and cost-effectiveness of these advanced materials for industrial utilizations. Building on these insights, future research directions are outlined, highlighting the requirement for interdisciplinary efforts to overcome current limitations and fully realize the potential of Cu-based catalysts in CO<sub>2</sub> reduction.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100151"},"PeriodicalIF":5.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145474115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microalgae as biofactories for sustainable applications: Advancing carbon sequestration, bioenergy, and environmental remediation 微藻作为可持续应用的生物工厂：推进碳封存、生物能源和环境修复

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-07-12 DOI: 10.1016/j.scca.2025.100098

Godspower Oke Omokaro, Zipporah Simiyu Nafula, Nwankwo Evalistus Iloabuchi, Abdulmajeed Allan Chikukula, Osazemen Godswill Osayogie, Eucharia Chisom Nnoli

Microalgae are increasingly recognized as versatile biofactories capable of transforming the global shift toward sustainable energy, environmental remediation, and circular economic systems. This review presents a comprehensive, system-level synthesis of recent advancements in microalgal technologies, emphasizing their multifunctional roles in carbon sequestration, bioenergy production, wastewater treatment, and bioplastic development. Under optimized conditions, microalgae can achieve carbon fixation rates of 1.0–3.7 g CO₂/L/day and lipid content up to 60 % of dry biomass in select strains, outperforming most terrestrial bioenergy crops. Key technologies reviewed include photobioreactor-based cultivation, hydrothermal liquefaction, integrated biorefineries, and hybrid harvesting systems. Additionally, recent breakthroughs in metabolic engineering and energy-efficient conversion methods are critically analyzed. While significant progress has been made, this review also identifies crucial research and implementation gaps that limit large-scale adoption. his review addresses these gaps by combining critical evaluations, performance benchmarking, and real-world case studies. It also identifies key commercialization bottlenecks and policy barriers that hinder large-scale deployment. Importantly, this review aligns microalgal innovation with multiple United Nations Sustainable Development Goals (SDGs), including SDG 7 (Affordable and Clean Energy), SDG 9 (Industry, Innovation, and Infrastructure), SDG 12 (Responsible Consumption and Production), and SDG 13 (Climate Action). By unifying environmental, economic, and technological perspectives, this work offers a strategic roadmap for harnessing the full potential of microalgae to meet global sustainability and climate neutrality targets.

微藻越来越被认为是多功能生物工厂，能够改变全球向可持续能源、环境修复和循环经济系统的转变。本文综述了微藻技术的最新进展，强调了它们在碳封存、生物能源生产、废水处理和生物塑料开发方面的多功能作用。在优化条件下，微藻的固碳速率可达1.0 ~ 3.7 g CO₂/L/day，脂质含量可达干生物量的60%，优于大多数陆生生物能源作物。综述的关键技术包括基于光生物反应器的培养、水热液化、综合生物炼制和混合收获系统。此外，代谢工程和节能转化方法的最新突破进行了批判性分析。虽然取得了重大进展，但本次审查也发现了限制大规模采用的关键研究和实施差距。他的评论通过结合关键评估、性能基准和实际案例研究来解决这些差距。它还确定了阻碍大规模部署的关键商业化瓶颈和政策障碍。重要的是，本次审查将微藻创新与多个联合国可持续发展目标（SDG）保持一致，包括可持续发展目标7（负担得起的清洁能源）、可持续发展目标9（工业、创新和基础设施）、可持续发展目标12（负责任的消费和生产）和可持续发展目标13（气候行动）。通过统一环境、经济和技术观点，这项工作为充分利用微藻的潜力实现全球可持续性和气候中和目标提供了战略路线图。

{"title":"Microalgae as biofactories for sustainable applications: Advancing carbon sequestration, bioenergy, and environmental remediation","authors":"Godspower Oke Omokaro, Zipporah Simiyu Nafula, Nwankwo Evalistus Iloabuchi, Abdulmajeed Allan Chikukula, Osazemen Godswill Osayogie, Eucharia Chisom Nnoli","doi":"10.1016/j.scca.2025.100098","DOIUrl":"10.1016/j.scca.2025.100098","url":null,"abstract":"<div><div>Microalgae are increasingly recognized as versatile biofactories capable of transforming the global shift toward sustainable energy, environmental remediation, and circular economic systems. This review presents a comprehensive, system-level synthesis of recent advancements in microalgal technologies, emphasizing their multifunctional roles in carbon sequestration, bioenergy production, wastewater treatment, and bioplastic development. Under optimized conditions, microalgae can achieve carbon fixation rates of 1.0–3.7 g CO₂/L/day and lipid content up to 60 % of dry biomass in select strains, outperforming most terrestrial bioenergy crops. Key technologies reviewed include photobioreactor-based cultivation, hydrothermal liquefaction, integrated biorefineries, and hybrid harvesting systems. Additionally, recent breakthroughs in metabolic engineering and energy-efficient conversion methods are critically analyzed. While significant progress has been made, this review also identifies crucial research and implementation gaps that limit large-scale adoption. his review addresses these gaps by combining critical evaluations, performance benchmarking, and real-world case studies. It also identifies key commercialization bottlenecks and policy barriers that hinder large-scale deployment. Importantly, this review aligns microalgal innovation with multiple United Nations Sustainable Development Goals (SDGs), including SDG 7 (Affordable and Clean Energy), SDG 9 (Industry, Innovation, and Infrastructure), SDG 12 (Responsible Consumption and Production), and SDG 13 (Climate Action). By unifying environmental, economic, and technological perspectives, this work offers a strategic roadmap for harnessing the full potential of microalgae to meet global sustainability and climate neutrality targets.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100098"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144661979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emerging trends in sustainable CO2 separation and capture using deep eutectic solvents 使用深度共晶溶剂的可持续二氧化碳分离和捕获的新趋势

IF 5.4

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-10-13 DOI: 10.1016/j.scca.2025.100141

Remya Ranjith , Bharti Saini , Swapnil Dharaskar , Vimal Gandhi , Pooja Jaiswal

Carbon Dioxide capture is one of the few areas that has been extensively researched in the recent past, however, a viable solution remains elusive. Proven technologies like amine absorption, pressure swing adsorption etc. though commercialized, suffer from certain inherent drawbacks like high energy consumption, usage of corrosive chemicals and economically intensive nature. In recent years, researchers have strategically redirected their efforts towards the realm of energy-efficient carbon dioxide separation using membranes modified by the strategic incorporation of efficient additive materials into membrane structures. This incorporation has initiated a transformative shift away from conventional techniques, leading to the emergence of more efficient and sustainable processes for carbon dioxide capture and separation. In this context, carbon dioxide capture using Deep Eutectic Solvents has garnered significant attention due to remarkable attributes of these solvents, which include low volatility, non-toxic, thermal stability and biodegradable nature. Various types of Deep Eutectic Solvents have been explored for effective carbon dioxide capture and this paper attempts to present a comprehensive review of these diverse Deep Eutectic Solvents types. Furthermore, it delves into the specific components, namely Hydrogen Bond Donors and Hydrogen Bond Acceptors present in each Deep Eutectic Solvents. The review explores the details of supported liquid membranes made of Deep Eutectic Solvents and discusses the practical challenges of using Deep Eutectic Solvents for separating carbon dioxide. It also explores potential areas for future research in this field.

二氧化碳捕获是近年来被广泛研究的少数领域之一，然而，一个可行的解决方案仍然难以捉摸。胺吸收、变压吸附等成熟的技术虽然已经商业化，但存在高能耗、使用腐蚀性化学品和经济密集型等固有缺点。近年来，研究人员已经战略性地将他们的努力转向了节能二氧化碳分离领域，通过将有效的添加剂材料战略性地结合到膜结构中来改性膜。这种结合已经开始了传统技术的变革，导致了更有效和可持续的二氧化碳捕获和分离工艺的出现。在此背景下，由于这些溶剂具有低挥发性、无毒、热稳定性和可生物降解性等显著特性，使用深共晶溶剂捕获二氧化碳已经引起了人们的极大关注。各种类型的深共晶溶剂已经被探索用于有效的二氧化碳捕获，本文试图对这些不同类型的深共晶溶剂进行全面的综述。此外，它还深入研究了每种深共晶溶剂中存在的特定组分，即氢键供体和氢键受体。综述了深共晶溶剂支撑液膜的研究进展，讨论了用深共晶溶剂分离二氧化碳的实际挑战。本文还探讨了该领域未来研究的潜在领域。

{"title":"Emerging trends in sustainable CO2 separation and capture using deep eutectic solvents","authors":"Remya Ranjith , Bharti Saini , Swapnil Dharaskar , Vimal Gandhi , Pooja Jaiswal","doi":"10.1016/j.scca.2025.100141","DOIUrl":"10.1016/j.scca.2025.100141","url":null,"abstract":"<div><div>Carbon Dioxide capture is one of the few areas that has been extensively researched in the recent past, however, a viable solution remains elusive. Proven technologies like amine absorption, pressure swing adsorption etc. though commercialized, suffer from certain inherent drawbacks like high energy consumption, usage of corrosive chemicals and economically intensive nature. In recent years, researchers have strategically redirected their efforts towards the realm of energy-efficient carbon dioxide separation using membranes modified by the strategic incorporation of efficient additive materials into membrane structures. This incorporation has initiated a transformative shift away from conventional techniques, leading to the emergence of more efficient and sustainable processes for carbon dioxide capture and separation. In this context, carbon dioxide capture using Deep Eutectic Solvents has garnered significant attention due to remarkable attributes of these solvents, which include low volatility, non-toxic, thermal stability and biodegradable nature. Various types of Deep Eutectic Solvents have been explored for effective carbon dioxide capture and this paper attempts to present a comprehensive review of these diverse Deep Eutectic Solvents types. Furthermore, it delves into the specific components, namely Hydrogen Bond Donors and Hydrogen Bond Acceptors present in each Deep Eutectic Solvents. The review explores the details of supported liquid membranes made of Deep Eutectic Solvents and discusses the practical challenges of using Deep Eutectic Solvents for separating carbon dioxide. It also explores potential areas for future research in this field.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100141"},"PeriodicalIF":5.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145361007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable geopolymerization approach to stabilize fat clay under various temperature conditions 在不同温度条件下稳定脂肪粘土的可持续地聚合方法

IF 5.4

Sustainable Chemistry for Climate Action

Pub Date : 2025-12-01 Epub Date: 2025-07-26 DOI: 10.1016/j.scca.2025.100101

Georgy Lazorenko, Anton Kasprzhitskii

Fat clays are a problematic type of soil with relatively wide distribution and representing a significant potential threat in geotechnical engineering. Under conditions of climate change, this problem is particularly acute. Considering the environmental risks of traditional soil stabilizers, as well as the scarcity of literature on the influence of temperature factor on fat clay stabilization with low-carbon binder materials, this work investigates the mechanical and structural characteristics of fat clay stabilized with metakaolin-based geopolymer under various curing conditions. The unconfined compressive strength (UCS) of the geopolymer stabilized soil was determined at ages of 1, 3, 7, 14, and 28 days. Structural analysis using Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) techniques was conducted to unveil the stabilized mechanism. The obtained results provide better understanding of curing processes, strength development, and structure formation during stabilization of problematic clays with geopolymers under various climatic conditions, contributing to improving environmental performance and reliability indicators of geotechnical structures.

肥粘土是一种分布较广的问题土，在岩土工程中具有重要的潜在威胁。在气候变化的条件下，这个问题尤为严重。考虑到传统土壤稳定剂的环境风险，以及关于温度因素对低碳粘结剂稳定脂肪粘土影响的文献较少，本工作研究了偏高岭土基地聚合物在不同养护条件下稳定脂肪粘土的力学和结构特性。测定了土聚合物稳定土在1、3、7、14和28 d时的无侧限抗压强度（UCS）。利用扫描电镜（SEM）和x射线衍射（XRD）技术进行结构分析，揭示了稳定机理。所得结果有助于更好地理解不同气候条件下问题粘土的固化过程、强度发展和结构形成过程，有助于提高土工结构的环境性能和可靠性指标。

{"title":"Sustainable geopolymerization approach to stabilize fat clay under various temperature conditions","authors":"Georgy Lazorenko, Anton Kasprzhitskii","doi":"10.1016/j.scca.2025.100101","DOIUrl":"10.1016/j.scca.2025.100101","url":null,"abstract":"<div><div>Fat clays are a problematic type of soil with relatively wide distribution and representing a significant potential threat in geotechnical engineering. Under conditions of climate change, this problem is particularly acute. Considering the environmental risks of traditional soil stabilizers, as well as the scarcity of literature on the influence of temperature factor on fat clay stabilization with low-carbon binder materials, this work investigates the mechanical and structural characteristics of fat clay stabilized with metakaolin-based geopolymer under various curing conditions. The unconfined compressive strength (UCS) of the geopolymer stabilized soil was determined at ages of 1, 3, 7, 14, and 28 days. Structural analysis using Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) techniques was conducted to unveil the stabilized mechanism. The obtained results provide better understanding of curing processes, strength development, and structure formation during stabilization of problematic clays with geopolymers under various climatic conditions, contributing to improving environmental performance and reliability indicators of geotechnical structures.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100101"},"PeriodicalIF":5.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144750345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0