Sustainable Chemistry One World最新文献_第2页

Green functionalized carbon dots for photocatalytic dye degradation: A functional review 用于光催化染料降解的绿色功能化碳点：功能综述

Sustainable Chemistry One World

Pub Date : 2026-01-07 DOI: 10.1016/j.scowo.2026.100185

Deepak Kumar , Krishan Kumar Selwal , Jyoti Rani , Priya Saharan

The rising pollution of water resources with synthetic dyes creates serious environmental and health risks. Conventional dye removal techniques, such as physical, chemical, and biological processes, are frequently limited by high operational costs, partial degradation, and the formation of secondary pollutants. Recent advances in nanotechnology have led to the development of green carbon dots (GCDs) as effective, environmentally friendly photocatalysts for dye degradation. This review provides a detailed summary of GCD production, methodologies, structural and optical features, along with its application as a catalyst for dye removal under light irradiation. Furthermore, a rigorous comparison is made between traditional dye-removal methods and photocatalytic systems using GCDs, emphasizing their higher degradation efficiency, sustainability, and cost-effectiveness. The study concludes with future directions for improving photocatalytic performance through heteroatom doping, surface modification, and hybrid composites to enhance sustainable water treatment technologies. In addition to reviewing the synthesis and photocatalytic activity of GCDs, this study emphasizes their practical application in industrial-scale wastewater treatment systems, particularly in the textile and printing industries. The current study is unique in that it focuses solely on green-precursor-based carbon dots and their mechanism-driven function in dye degradation, a topic that has not been thoroughly studied. A qualitative comparison with established physicochemical and biological approaches reveals that GCDs exhibit higher degradation efficiency (>90 %), improved photostability and recyclability, and lower operational costs. This analysis expands on the economic significance and future promise of GCDs as sustainable photocatalysts for real-world environmental remediation.

合成染料对水资源的污染日益严重，造成了严重的环境和健康风险。传统的染料去除技术，如物理、化学和生物过程，经常受到操作成本高、部分降解和形成二次污染物的限制。近年来，纳米技术的进步使得绿色碳点（gcd）作为染料降解的有效、环保的光催化剂得到了发展。本文详细介绍了GCD的制备、方法、结构和光学特性，以及它在光照射下作为脱色催化剂的应用。此外，对传统的染料去除方法和使用gcd的光催化系统进行了严格的比较，强调了它们更高的降解效率、可持续性和成本效益。展望了通过杂原子掺杂、表面改性和杂化复合材料等方法提高光催化性能以增强可持续水处理技术的发展方向。除了综述GCDs的合成和光催化活性外，本研究还重点介绍了GCDs在工业规模废水处理系统中的实际应用，特别是在纺织和印刷工业中的应用。目前的研究的独特之处在于，它只关注基于绿色前驱体的碳点及其在染料降解中的机制驱动功能，这是一个尚未被彻底研究的主题。与现有的物理化学和生物方法进行定性比较表明，gcd具有更高的降解效率（>90 %），更好的光稳定性和可回收性，以及更低的运营成本。该分析扩展了gcd作为现实世界环境修复的可持续光催化剂的经济意义和未来前景。

{"title":"Green functionalized carbon dots for photocatalytic dye degradation: A functional review","authors":"Deepak Kumar , Krishan Kumar Selwal , Jyoti Rani , Priya Saharan","doi":"10.1016/j.scowo.2026.100185","DOIUrl":"10.1016/j.scowo.2026.100185","url":null,"abstract":"<div><div>The rising pollution of water resources with synthetic dyes creates serious environmental and health risks. Conventional dye removal techniques, such as physical, chemical, and biological processes, are frequently limited by high operational costs, partial degradation, and the formation of secondary pollutants. Recent advances in nanotechnology have led to the development of green carbon dots (GCDs) as effective, environmentally friendly photocatalysts for dye degradation. This review provides a detailed summary of GCD production, methodologies, structural and optical features, along with its application as a catalyst for dye removal under light irradiation. Furthermore, a rigorous comparison is made between traditional dye-removal methods and photocatalytic systems using GCDs, emphasizing their higher degradation efficiency, sustainability, and cost-effectiveness. The study concludes with future directions for improving photocatalytic performance through heteroatom doping, surface modification, and hybrid composites to enhance sustainable water treatment technologies. In addition to reviewing the synthesis and photocatalytic activity of GCDs, this study emphasizes their practical application in industrial-scale wastewater treatment systems, particularly in the textile and printing industries. The current study is unique in that it focuses solely on green-precursor-based carbon dots and their mechanism-driven function in dye degradation, a topic that has not been thoroughly studied. A qualitative comparison with established physicochemical and biological approaches reveals that GCDs exhibit higher degradation efficiency (>90 %), improved photostability and recyclability, and lower operational costs. This analysis expands on the economic significance and future promise of GCDs as sustainable photocatalysts for real-world environmental remediation.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100185"},"PeriodicalIF":0.0,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977071","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

Integrated experimental–theoretical analysis of aluminum corrosion inhibition by ipomoea carnea leaf extract 甘薯叶提取物缓蚀铝的实验-理论综合分析

Sustainable Chemistry One World

Pub Date : 2026-01-06 DOI: 10.1016/j.scowo.2026.100182

Adarsh M. Patel , K.C. Desai , R.T. Vashi , P.S. Desai

An ethanolic extract of Ipomoea carnea (ICLE) leaves was systematically characterised through advanced spectroscopic methods and assessed for its efficacy as a green corrosion inhibitor for aluminium in 0.2–0.4 M HCl solution. The anti-corrosive behaviour of ICLE was scrutinised using diverse analytical techniques, including gravimetric analysis, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), atomic force microscopy (AFM), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS), and computational modelling such as quantum chemical calculations and MD simulations. ICLE achieved an impressive 96.7 % inhibition rate at 2.0 g/L and 303 K in weight-loss trials, demonstrating potent surface protection at a minimum concentration. EIS data revealed a marked increase in the surface charge-transfer resistance (R_ct = 5233.2 Ω·cm²) and a decrease in double-layer capacitance, suggesting the formation of a robust adsorbed passive film. PDP analysis revealed a dual-action inhibition mechanism, which inhibits both anodic and cathodic processes. The overall inhibition efficiency was 93.02 %. Surface morphology studies confirmed the deposition of ICLE molecules, forming a uniform hydrophobic shield. The adsorption behaviour is consistent with the Langmuir model, suggesting single-layer coverage. Compared to other botanical inhibitors, ICLE performed better under harsh, thermally elevated conditions. DFT calculations highlighted that all five molecules derived from the extract are highly reactive species due to their low energy gaps, which is consistent with their nucleophilic character and tendency to donate electrons to the metal surface. Fukui function analysis pinpointed oxygen-bearing groups as key adsorption sites. MD simulations validated the structural integrity of the adsorbed layer.

通过先进的光谱方法系统地表征了Ipomoea carnea （ICLE）叶片的乙醇提取物，并评估了其在0.2-0.4 M HCl溶液中作为铝的绿色缓蚀剂的功效。利用各种分析技术，包括重量分析、电化学阻抗谱（EIS）、动电位极化（PDP）、原子力显微镜（AFM）、扫描电子显微镜和能量色散x射线光谱（SEM/EDS），以及量子化学计算和MD模拟等计算模型，仔细检查了ICLE的防腐行为。在减肥试验中，在2.0 g/L和303 K条件下，ICLE的抑制率达到了令人印象深刻的96.7 %，证明了在最低浓度下的有效表面保护。EIS数据显示，表面电荷转移电阻显著增加（Rct = 5233.2 Ω·cm²），双层电容显著减小，表明形成了坚固的吸附钝化膜。PDP分析揭示了双作用抑制机制，同时抑制阳极和阴极过程。总抑菌率为93.02 %。表面形貌研究证实了ICLE分子的沉积，形成了均匀的疏水屏蔽。吸附行为与Langmuir模型一致，表明单层覆盖。与其他植物抑制剂相比，ICLE在苛刻的高温条件下表现更好。DFT计算强调，由于萃取物的低能隙，这五种分子都是高活性物质，这与它们的亲核特性和向金属表面提供电子的倾向是一致的。福井功能分析指出含氧基团是关键的吸附位点。MD模拟验证了吸附层的结构完整性。

{"title":"Integrated experimental–theoretical analysis of aluminum corrosion inhibition by ipomoea carnea leaf extract","authors":"Adarsh M. Patel , K.C. Desai , R.T. Vashi , P.S. Desai","doi":"10.1016/j.scowo.2026.100182","DOIUrl":"10.1016/j.scowo.2026.100182","url":null,"abstract":"<div><div>An ethanolic extract of Ipomoea carnea (ICLE) leaves was systematically characterised through advanced spectroscopic methods and assessed for its efficacy as a green corrosion inhibitor for aluminium in 0.2–0.4 M HCl solution. The anti-corrosive behaviour of ICLE was scrutinised using diverse analytical techniques, including gravimetric analysis, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), atomic force microscopy (AFM), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS), and computational modelling such as quantum chemical calculations and MD simulations. ICLE achieved an impressive 96.7 % inhibition rate at 2.0 g/L and 303 K in weight-loss trials, demonstrating potent surface protection at a minimum concentration. EIS data revealed a marked increase in the surface charge-transfer resistance (R<sub>ct</sub> = 5233.2 Ω·cm²) and a decrease in double-layer capacitance, suggesting the formation of a robust adsorbed passive film. PDP analysis revealed a dual-action inhibition mechanism, which inhibits both anodic and cathodic processes. The overall inhibition efficiency was 93.02 %. Surface morphology studies confirmed the deposition of ICLE molecules, forming a uniform hydrophobic shield. The adsorption behaviour is consistent with the Langmuir model, suggesting single-layer coverage. Compared to other botanical inhibitors, ICLE performed better under harsh, thermally elevated conditions. DFT calculations highlighted that all five molecules derived from the extract are highly reactive species due to their low energy gaps, which is consistent with their nucleophilic character and tendency to donate electrons to the metal surface. Fukui function analysis pinpointed oxygen-bearing groups as key adsorption sites. MD simulations validated the structural integrity of the adsorbed layer.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100182"},"PeriodicalIF":0.0,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924587","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

Algal biodiesel: A comprehensive review of promise, challenges, and future pathways 藻类生物柴油：前景、挑战和未来途径的全面回顾

Sustainable Chemistry One World

Pub Date : 2026-01-05 DOI: 10.1016/j.scowo.2026.100183

M. Karthikeyan , R.S. Akshaya , N.S. Meenakshy , Lakshmi Natarajan , S. Sathish , R. Pugalendhi

Research on microalgae as a feedstock for biodiesel has increased due to the growing need for sustainable liquid fuels because of their high lipid productivity, quick growth, and suitability for wastewater and carbon-capture systems. While many reviews outline the processes of cultivation, harvesting, extraction, and transesterification, many do not provide an integrated interpretation of new downstream innovations and system-level performance. In order to fill that gap, this review combines a bibliometric meta-analysis (2010–2025) with a targeted assessment of low-energy downstream routes, specifically wet extraction, enzyme-assisted disruption, and in situ transesterification, to determine which technologies have the most potential to lower energy intensity. Furthermore, a techno-economic sensitivity analysis and scenario-based Life Cycle Assessment (LCA) demonstrate how the Net Energy Ratio (NER) is influenced by the electricity mix, nutrient sourcing, harvesting technique, and extraction route. The findings demonstrate that under low-carbon energy systems, combining wastewater nutrients, flocculation-based harvesting, and wet or in situ extraction can change algal biodiesel from energy-negative (NER < 0.7) to energy-positive (NER > 1.5). This review offers a comprehensive evaluation of practical routes for scaling algal biodiesel toward economically feasible and ecologically responsible biorefinery systems by combining bibliometric trends with technological advancements and LCA–TEA scenarios.

微藻作为生物柴油原料的研究越来越多，这是由于对可持续液体燃料的需求不断增长，因为它们具有高脂生产力、快速生长和适合废水和碳捕获系统。虽然许多综述概述了种植、收获、提取和酯交换的过程，但许多综述没有对新的下游创新和系统级性能提供综合解释。为了填补这一空白，本综述结合了文献计量学荟萃分析（2010-2025），并对低能耗下游路线进行了有针对性的评估，特别是湿提取、酶辅助破坏和原位酯交换，以确定哪些技术最有潜力降低能源强度。此外，技术经济敏感性分析和基于场景的生命周期评估（LCA）展示了净能量比（NER）如何受到电力组合、养分来源、收获技术和提取路线的影响。研究结果表明，在低碳能源系统下，结合废水营养物、絮凝收集和湿法或原位提取可以将藻类生物柴油从负能量（NER < 0.7）转变为正能量（NER > 1.5）。本文结合文献计量学趋势、技术进步和LCA-TEA情景，对藻类生物柴油向经济上可行、生态上负责任的生物炼制系统发展的实际路线进行了全面评估。

{"title":"Algal biodiesel: A comprehensive review of promise, challenges, and future pathways","authors":"M. Karthikeyan , R.S. Akshaya , N.S. Meenakshy , Lakshmi Natarajan , S. Sathish , R. Pugalendhi","doi":"10.1016/j.scowo.2026.100183","DOIUrl":"10.1016/j.scowo.2026.100183","url":null,"abstract":"<div><div>Research on microalgae as a feedstock for biodiesel has increased due to the growing need for sustainable liquid fuels because of their high lipid productivity, quick growth, and suitability for wastewater and carbon-capture systems. While many reviews outline the processes of cultivation, harvesting, extraction, and transesterification, many do not provide an integrated interpretation of new downstream innovations and system-level performance. In order to fill that gap, this review combines a bibliometric meta-analysis (2010–2025) with a targeted assessment of low-energy downstream routes, specifically wet extraction, enzyme-assisted disruption, and in situ transesterification, to determine which technologies have the most potential to lower energy intensity. Furthermore, a techno-economic sensitivity analysis and scenario-based Life Cycle Assessment (LCA) demonstrate how the Net Energy Ratio (NER) is influenced by the electricity mix, nutrient sourcing, harvesting technique, and extraction route. The findings demonstrate that under low-carbon energy systems, combining wastewater nutrients, flocculation-based harvesting, and wet or in situ extraction can change algal biodiesel from energy-negative (NER < 0.7) to energy-positive (NER > 1.5). This review offers a comprehensive evaluation of practical routes for scaling algal biodiesel toward economically feasible and ecologically responsible biorefinery systems by combining bibliometric trends with technological advancements and LCA–TEA scenarios.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100183"},"PeriodicalIF":0.0,"publicationDate":"2026-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924585","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

Uptake, accumulation and gene expression in lucky bamboo (Dracaena sanderiana Sander) plants in response to lead (Pb) exposure 龙竹对铅暴露的吸收、积累及基因表达

Sustainable Chemistry One World

Pub Date : 2026-01-02 DOI: 10.1016/j.scowo.2025.100180

Lien Bich Ho , Lam Thanh Duong , Vinh Khang Huynh , Tuyen Cach Bui , Han Ngoc Bui , Biet Van Huynh

Lead (Pb) contamination poses a major environmental threat, especially in developing countries. In this study, the Pb accumulation capacity and molecular response of Dracaena sanderiana to Pb stress were investigated using hydroponic experiments. The plants were exposed to different Pb concentrations (0–1000 mg L⁻¹) for 60 days. The results showed that Pb was predominantly accumulated in the roots, with limited translocation to the aboveground tissues. D. sanderiana accumulated up to 38.5 mg g⁻¹ of Pb in roots without visible toxicity, suggesting its potential for phytoremediation. To further understand its molecular response, three antioxidant-related genes—glutathione S-transferase (DsGST), glutathione peroxidase (DsGPX) and copper/zinc superoxide dismutase (DsCyt-Cu/Zn SOD)—were cloned and their expression profiles under Pb stress were analyzed via qRT-PCR. The results revealed time- and concentration-dependent induction of all three genes, particularly in roots and stems. Notably, gene expression peaked at moderate Pb levels (400–600 mg L⁻¹) and declined at higher concentrations, indicating possible genotoxic effects. These findings suggest that D. sanderiana has both high Pb tolerance and an efficient antioxidant defense system, supporting its application in Pb-contaminated environments.

铅污染是一项重大的环境威胁，特别是在发展中国家。采用水培试验方法，研究了龙血树对Pb胁迫的富集能力及分子响应。这些植物暴露在不同浓度的铅环境中（0-1000 mg L⁻¹）60天。结果表明，铅主要在根系积累，向地上组织的转运有限。sanderiana在根中累积的Pb高达38.5 mg g⁻¹ ，无明显毒性，表明其具有植物修复的潜力。为了进一步了解其分子响应，克隆了3个抗氧化相关基因谷胱甘肽s转移酶（DsGST）、谷胱甘肽过氧化物酶（DsGPX）和铜锌超氧化物歧化酶（DsCyt-Cu/Zn SOD），并通过qRT-PCR分析了它们在铅胁迫下的表达谱。结果显示，所有三个基因的诱导都是时间和浓度依赖的，特别是在根和茎中。值得注意的是，基因表达在中等铅水平（400-600 mg L -毒血症）时达到高峰，在高浓度时下降，表明可能存在遗传毒性作用。上述结果表明，山桑藤具有较高的耐铅性和有效的抗氧化防御系统，支持其在铅污染环境中的应用。

{"title":"Uptake, accumulation and gene expression in lucky bamboo (Dracaena sanderiana Sander) plants in response to lead (Pb) exposure","authors":"Lien Bich Ho , Lam Thanh Duong , Vinh Khang Huynh , Tuyen Cach Bui , Han Ngoc Bui , Biet Van Huynh","doi":"10.1016/j.scowo.2025.100180","DOIUrl":"10.1016/j.scowo.2025.100180","url":null,"abstract":"<div><div>Lead (Pb) contamination poses a major environmental threat, especially in developing countries. In this study, the Pb accumulation capacity and molecular response of <em>Dracaena sanderiana</em> to Pb stress were investigated using hydroponic experiments. The plants were exposed to different Pb concentrations (0–1000 mg L⁻¹) for 60 days. The results showed that Pb was predominantly accumulated in the roots, with limited translocation to the aboveground tissues. <em>D. sanderiana</em> accumulated up to 38.5 mg g⁻¹ of Pb in roots without visible toxicity, suggesting its potential for phytoremediation. To further understand its molecular response, three antioxidant-related genes—glutathione S-transferase (DsGST), glutathione peroxidase (DsGPX) and copper/zinc superoxide dismutase (DsCyt-Cu/Zn SOD)—were cloned and their expression profiles under Pb stress were analyzed via qRT-PCR. The results revealed time- and concentration-dependent induction of all three genes, particularly in roots and stems. Notably, gene expression peaked at moderate Pb levels (400–600 mg L⁻¹) and declined at higher concentrations, indicating possible genotoxic effects. These findings suggest that <em>D. sanderiana</em> has both high Pb tolerance and an efficient antioxidant defense system, supporting its application in Pb-contaminated environments.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100180"},"PeriodicalIF":0.0,"publicationDate":"2026-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924586","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

Vacuum fractional distillation of essential oils: Enrichment and purification of bioactive constituents 精油的真空分馏：生物活性成分的富集和纯化

Sustainable Chemistry One World

Pub Date : 2026-01-01 DOI: 10.1016/j.scowo.2025.100179

Dinh-Nhat Do , Xuan-Tien Le

Vacuum fractional distillation (VFD) is an efficient and environmentally friendly method for the separation and purification of thermally unstable and oxidizable bioactive compounds from essential oils through a virtually solvent-free process. This review highlights the importance of essential oil fractionation to meet the growing demands in the fragrance, cosmetic, food, and pharmaceutical industries. Fundamental principles and thermodynamics are summarized alongside VFD modeling, enabling prediction of phase behavior, column performance, hydrodynamics, and residence times, while reducing development time and scale-up risk. Published simulation and experimental studies are synthesized to define key influencing factors and practical operating windows for VFD performance. In addition, the review also identifies persistent data gaps, including non-standardized reporting practices, limited vacuum vapor-liquid equilibrium (VLE) data for key binary systems, and insufficient pilot-scale studies, which currently constrain reproducible research transfer and broader industrial implementation.

真空分馏（VFD）是一种高效、环保的方法，通过几乎无溶剂的过程从精油中分离和纯化热不稳定和可氧化的生物活性化合物。本文综述了精油分馏技术的重要性，以满足香料、化妆品、食品和制药行业日益增长的需求。基本原理和热力学与VFD建模一起总结，可以预测相行为，柱性能，流体动力学和停留时间，同时减少开发时间和扩大风险。综合已发表的仿真和实验研究，确定了VFD性能的关键影响因素和实际操作窗口。此外，审查还发现了持续存在的数据差距，包括非标准化的报告实践，关键二元系统的真空气液平衡（VLE）数据有限，以及中试规模研究不足，这些目前限制了可重复的研究转移和更广泛的工业实施。

引用次数: 0

Comparative analysis of magnetic tamarind kernels and GO-grafted magnetic tamarind kernels for the mitigation of Congo red dye 磁性罗望子核与氧化石墨烯接枝磁性罗望子核对刚果红染料缓释效果的比较分析

Sustainable Chemistry One World

Pub Date : 2025-12-31 DOI: 10.1016/j.scowo.2025.100178

Sunita Hooda , Sahil Kohli , Nishita , Rushali Makkar , Anita Narang , Anupama Shukla , Manisha Verma , Sanjeeta Rani , Geetu Gambhir , Laishram Saya

The present study focuses on the fabrication of magnetized tamarind kernel powder (MTKP) nanocomposites and graphene oxide-blended tamarind kernel powder (MTKP-GO) nanocomposites via co-precipitation method, and were employed for their application in the removal of Congo red dye from wastewater. Several physico-chemical techniques were investigated to analyse the surface morphology and structural identification of these nanocomposites. FE-SEM, XRD, and FTIR tests yielded distinctive findings, demonstrating the successful fabrication of magnetic TKP-GO with a sizable surface area and favourable magnetic response. Batch adsorption tests revealed a relatively greater adsorption potential for M TKP-GO (q_max= 236.795 ^mg/g) compared to M TKP (q_max =150.8045 ^mg/g). The pseudo-second-order model best fitted the data for adsorption kinetics with R² valus of 0.9952 and 0.99604 for MTKP AND MTKP-GO respectively. Of all the isotherm models investigated, interestingly it was found that the Langmuir model best fit the adsorption data for M TKP, while the Freundlich isotherm model best explained the adsorption behaviour for M TKP-GO.

采用共沉淀法制备了磁化罗望子仁粉（MTKP）纳米复合材料和氧化石墨烯-混合罗望子仁粉（MTKP- go）纳米复合材料，并将其应用于废水中刚果红染料的去除。研究了几种物理化学技术来分析这些纳米复合材料的表面形貌和结构特征。FE-SEM， XRD和FTIR测试得出了不同的结果，证明了磁性TKP-GO的成功制造具有相当大的表面积和良好的磁响应。批量吸附实验表明，M TKP- go （qmax= 236.795 mg/g）比M TKP （qmax= 150.8045 mg/g）具有更大的吸附潜力。拟二阶模型拟合MTKP和MTKP- go吸附动力学数据，R2值分别为0.9952和0.99604。在所有研究的等温线模型中，有趣的是，Langmuir模型最适合M TKP的吸附数据，而Freundlich等温线模型最能解释M TKP- go的吸附行为。

{"title":"Comparative analysis of magnetic tamarind kernels and GO-grafted magnetic tamarind kernels for the mitigation of Congo red dye","authors":"Sunita Hooda , Sahil Kohli , Nishita , Rushali Makkar , Anita Narang , Anupama Shukla , Manisha Verma , Sanjeeta Rani , Geetu Gambhir , Laishram Saya","doi":"10.1016/j.scowo.2025.100178","DOIUrl":"10.1016/j.scowo.2025.100178","url":null,"abstract":"<div><div>The present study focuses on the fabrication of magnetized tamarind kernel powder (MTKP) nanocomposites and graphene oxide-blended tamarind kernel powder (MTKP-GO) nanocomposites <em>via</em> co-precipitation method, and were employed for their application in the removal of Congo red dye from wastewater. Several physico-chemical techniques were investigated to analyse the surface morphology and structural identification of these nanocomposites. FE-SEM, XRD, and FTIR tests yielded distinctive findings, demonstrating the successful fabrication of magnetic TKP-GO with a sizable surface area and favourable magnetic response. Batch adsorption tests revealed a relatively greater adsorption potential for M TKP-GO (q<sub>max</sub>= 236.795 <sup>mg/g</sup>) compared to M TKP (q<sub>max</sub> =150.8045 <sup>mg/g</sup>). The pseudo-second-order model best fitted the data for adsorption kinetics with R<sup>2</sup> valus of 0.9952 and 0.99604 for MTKP AND MTKP-GO respectively. Of all the isotherm models investigated, interestingly it was found that the Langmuir model best fit the adsorption data for M TKP, while the Freundlich isotherm model best explained the adsorption behaviour for M TKP-GO.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100178"},"PeriodicalIF":0.0,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884160","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

Nano-plastics, harmful Impact and its remediation methods: An updated review 纳米塑料，有害影响及其修复方法：最新综述

Sustainable Chemistry One World

Pub Date : 2025-12-31 DOI: 10.1016/j.scowo.2025.100181

Shoaib Khan , Arpita Roy , Soumya Pandit , Vaseem Raja , Swetha Raj , Sarvesh Rustagi

Nanoplastics, or NPs (< 100 nm), are a dynamically evolving class of contaminants whose environmental fate and biological effects are due to continuous physicochemical transformations. These‍‌ particles very quickly take up different kinds of eco-coronas that contain humic substances, proteins, lipids, and microbial metabolites through one process of competitive adsorption and noncovalent interactions, changing their surface charge, colloidal stability, and mobility. Secondary NPs are formed under the influence of abiotic processes such as UV photolysis, thermo-oxidative ageing, and mechanical abrasion along with microbial enzymatic degradation that are rich in reactive functional groups of higher pollutant affinity. The synergistic toxicity, as well as amplified oxidative stress and enhanced membrane permeability, are mainly caused by NP-pollutant complexes that contain heavy metals, pharmaceuticals, PFAS and pesticides. NPs come into most biological systems by many different routes, where bio-coronas having noncovalent binding proteins and biolipids are the means by which cellular internalization, immune evasion, and tissue accumulation in liver, brain, placenta, and reproductive organs occur. Their deposition is a source of concern for trophic transfer and transgenerational ‍‌effects. Adequate mitigation therefore requires remediation strategies, real-time nanoanalytics, spredictive modeling, and a mechanistic toxicology framework to safeguard environmental and human health.

纳米塑料，或NPs (< 100 nm)，是一类动态发展的污染物，其环境命运和生物效应是由于连续的物理化学转化。这些‍→颗粒通过竞争性吸附和非共价相互作用的过程，非常迅速地吸收含有腐殖质物质、蛋白质、脂质和微生物代谢物的不同种类的生态冠，改变它们的表面电荷、胶体稳定性和流动性。次生NPs是在紫外线光解、热氧化老化、机械磨损等非生物过程以及微生物酶降解的影响下形成的，含有丰富的具有较高污染物亲和力的活性官能团。协同毒性以及氧化应激放大和膜通透性增强主要是由含有重金属、药物、PFAS和农药的np -污染物复合物引起的。NPs通过许多不同的途径进入大多数生物系统，其中具有非共价结合蛋白和生物脂质的生物冠状体是细胞内化、免疫逃避和肝脏、脑、胎盘和生殖器官组织积累的手段。它们的沉积是营养转移和跨代影响的来源。因此，充分的缓解需要补救战略、实时纳米分析、预测建模和机械毒理学框架，以保障环境和人类健康。

{"title":"Nano-plastics, harmful Impact and its remediation methods: An updated review","authors":"Shoaib Khan , Arpita Roy , Soumya Pandit , Vaseem Raja , Swetha Raj , Sarvesh Rustagi","doi":"10.1016/j.scowo.2025.100181","DOIUrl":"10.1016/j.scowo.2025.100181","url":null,"abstract":"<div><div>Nanoplastics, or NPs (< 100 nm), are a dynamically evolving class of contaminants whose environmental fate and biological effects are due to continuous physicochemical transformations. These‍‌ particles very quickly take up different kinds of eco-coronas that contain humic substances, proteins, lipids, and microbial metabolites through one process of competitive adsorption and noncovalent interactions, changing their surface charge, colloidal stability, and mobility. Secondary NPs are formed under the influence of abiotic processes such as UV photolysis, thermo-oxidative ageing, and mechanical abrasion along with microbial enzymatic degradation that are rich in reactive functional groups of higher pollutant affinity. The synergistic toxicity, as well as amplified oxidative stress and enhanced membrane permeability, are mainly caused by NP-pollutant complexes that contain heavy metals, pharmaceuticals, PFAS and pesticides. NPs come into most biological systems by many different routes, where bio-coronas having noncovalent binding proteins and biolipids are the means by which cellular internalization, immune evasion, and tissue accumulation in liver, brain, placenta, and reproductive organs occur. Their deposition is a source of concern for trophic transfer and transgenerational ‍‌effects. Adequate mitigation therefore requires remediation strategies, real-time nanoanalytics, spredictive modeling, and a mechanistic toxicology framework to safeguard environmental and human health.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100181"},"PeriodicalIF":0.0,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884216","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

Valorization of mangosteen (Garcinia mangostana L) waste as green hair dyeing pigment: Effect of mordant and formula optimization 山竹废料作为绿色染发色素的价值评价：媒染剂的影响及配方优化

Sustainable Chemistry One World

Pub Date : 2025-12-30 DOI: 10.1016/j.scowo.2025.100176

Susiana Prasetyo , Silvia Bertha , Asaf K. Sugih , Daniel Tan , Hans Kristianto

The growing concerns over synthetic hair dyes necessitate exploring natural alternatives. Mangosteen (Garcinia mangostana L.) pericarp, an abundant agricultural waste rich in anthocyanins, presents a promising, underutilized source for natural hair coloration. This research evaluates mangosteen pericarp extract for developing a natural reddish hair dye, addressing common limitations in natural dye stability and color range. This study investigated the type of mordants (FeSO₄, MgSO₄, and Ca(OH)₂) and the concentration in terms of color development, alongside optimizing extract concentration to achieve the highest reddish color intensity. Hair color was characterized using visual assessment and colorimetric analysis (L*, a*, b*, ΔE*). Results revealed that FeSO₄ applied at acidic pH produced the desired reddish hair color, with a 2 % (w/v) mordant concentration yielding the most intense hue. Furthermore, a 10 % (w/v) crude extract concentration produced the most significant color difference (ΔE*) when applied to bleached hair, indicating a darker reddish coloration. Crucially, color fastness tests, involving 30 cycles of washing and simulated sunlight exposure, demonstrated good persistence of the reddish color with 18 % color difference observed. Functional groups analysis using FTIR confirmed the presence of anthocyanin on the dyed hair, and the dyed hair's tensile strength increased from 35.38 (bleached hair) to 57.65 MPa. This work highlights the potential of mangosteen pericarp as a viable, eco-friendly hair colorant, contributing to agricultural waste valorization and offering a safer alternative in the cosmetics industry.

对合成染发剂日益增长的担忧促使人们有必要探索天然的替代品。山竹果皮是一种富含花青素的丰富的农业废弃物，是一种有前途的、未充分利用的天然染发原料。本研究评估山竹果皮提取物用于开发天然红色染发剂，解决天然染料稳定性和颜色范围的常见限制。本研究考察了媒染剂（FeSO4、MgSO4和Ca(OH)2）的种类和浓度对显色的影响，并优化了萃取物的浓度，以达到最高的红色强度。用目测法和比色法测定发色（L*, a*, b*， ΔE*）。结果表明，在酸性pH下使用硫酸铁产生所需的红色发色，2 % （w/v）媒染剂浓度产生最强烈的色调。此外，10 % （w/v）的粗提取物浓度对漂白后的头发产生了最显著的色差（ΔE*），表明颜色较深。至关重要的是，色牢度测试，包括30次洗涤和模拟阳光照射，显示出良好的红色持久性，观察到的色差为18% %。FTIR官能团分析证实了染发上存在花青素，染发的抗拉强度从35.38（漂白后）提高到57.65 MPa。这项工作强调了山竹果皮作为一种可行的、环保的染发剂的潜力，有助于农业废物的增值，并为化妆品行业提供了一种更安全的替代品。

{"title":"Valorization of mangosteen (Garcinia mangostana L) waste as green hair dyeing pigment: Effect of mordant and formula optimization","authors":"Susiana Prasetyo , Silvia Bertha , Asaf K. Sugih , Daniel Tan , Hans Kristianto","doi":"10.1016/j.scowo.2025.100176","DOIUrl":"10.1016/j.scowo.2025.100176","url":null,"abstract":"<div><div>The growing concerns over synthetic hair dyes necessitate exploring natural alternatives. Mangosteen (<em>Garcinia mangostana</em> L.) pericarp, an abundant agricultural waste rich in anthocyanins, presents a promising, underutilized source for natural hair coloration. This research evaluates mangosteen pericarp extract for developing a natural reddish hair dye, addressing common limitations in natural dye stability and color range. This study investigated the type of mordants (FeSO<sub>4</sub>, MgSO<sub>4</sub>, and Ca(OH)<sub>2</sub>) and the concentration in terms of color development, alongside optimizing extract concentration to achieve the highest reddish color intensity. Hair color was characterized using visual assessment and colorimetric analysis (<em>L*, a*, b*, ΔE*</em>). Results revealed that FeSO₄ applied at acidic pH produced the desired reddish hair color, with a 2 % (<em>w/v</em>) mordant concentration yielding the most intense hue. Furthermore, a 10 % (<em>w/v</em>) crude extract concentration produced the most significant color difference (<em>ΔE*</em>) when applied to bleached hair, indicating a darker reddish coloration. Crucially, color fastness tests, involving 30 cycles of washing and simulated sunlight exposure, demonstrated good persistence of the reddish color with 18 % color difference observed. Functional groups analysis using FTIR confirmed the presence of anthocyanin on the dyed hair, and the dyed hair's tensile strength increased from 35.38 (bleached hair) to 57.65 MPa. This work highlights the potential of mangosteen pericarp as a viable, eco-friendly hair colorant, contributing to agricultural waste valorization and offering a safer alternative in the cosmetics industry.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100176"},"PeriodicalIF":0.0,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884218","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

Inhibition mechanisms of bovine bone ash-derived hydroxyapatite on AA6063 aluminium alloy in alkaline media: Electrochemical, adsorption, and optimization studies 牛骨灰羟基磷灰石在碱性介质中对AA6063铝合金的抑制机制：电化学、吸附和优化研究

Sustainable Chemistry One World

Pub Date : 2025-12-30 DOI: 10.1016/j.scowo.2025.100177

Ojo S.I. Fayomi , Onyeka G. Ogbuozobe , Joshua O. Atiba

This study investigates the corrosion inhibition of AA6063 aluminium alloy in 1 M NaOH using calcinated bovine bone ash-derived hydroxyapatite (BBA-HAp). Electrochemical analyses revealed that at 0.6 g L⁻¹ inhibitor and 323 K, the inhibition efficiency (IE) reached 90.31 %, with the corrosion current density (J_corr) decreasing from 2.04 × 10⁻⁴ A cm⁻² (control) to 2.01 × 10⁻⁵ A cm⁻². Adsorption behaviour transitioned from Freundlich-dominated (R² = 0.986 at 303 K) to Langmuir-dominated (R² = 0.998 at 323 K), indicating temperature-dependent monolayer formation, with ΔG°ads values between −16 and −25 kJ/mol confirming mixed adsorption mechanisms. Optical microscopy verified reduced surface degradation. Response Surface Methodology (RSM) optimization identified 0.541 g L⁻¹ inhibitor at 41.2 °C as optimal, yielding a corrosion rate (CR) of 0.19 mm/yr. These findings demonstrate that BBA-HAp provides effective, thermally stable, and sustainable corrosion protection for aluminium alloys in alkaline environments.

研究了牛骨灰羟基磷灰石（BBA-HAp）对AA6063铝合金在1 M NaOH中的缓蚀作用。电化学分析显示,0.6 g  L⁻¹ 抑制剂和323年 K,抑制效率(IE)达到90.31 %,与腐蚀电流密度(Jcorr)从2.04降低 × 10⁻⁴cm⁻²(控制)到2.01 ×10 ⁻⁵cm⁻²。吸附行为从freundlich主导（在303 K时R²= 0.986）转变为langmuir主导（在323 K时R²= 0.998），表明温度依赖于单分子层的形成，ΔG°ads值在−16和−25 kJ/mol之间，证实了混合吸附机制。光学显微镜证实减少了表面降解。响应面法（RSM）优化发现，在41.2°C时，0.541 g L⁻¹ 缓蚀剂是最优的，其腐蚀速率（CR）为0.19 mm/yr。这些发现表明，BBA-HAp在碱性环境中为铝合金提供了有效、热稳定和可持续的防腐保护。

{"title":"Inhibition mechanisms of bovine bone ash-derived hydroxyapatite on AA6063 aluminium alloy in alkaline media: Electrochemical, adsorption, and optimization studies","authors":"Ojo S.I. Fayomi , Onyeka G. Ogbuozobe , Joshua O. Atiba","doi":"10.1016/j.scowo.2025.100177","DOIUrl":"10.1016/j.scowo.2025.100177","url":null,"abstract":"<div><div>This study investigates the corrosion inhibition of AA6063 aluminium alloy in 1 M NaOH using calcinated bovine bone ash-derived hydroxyapatite (<strong>B</strong>BA-HAp). Electrochemical analyses revealed that at 0.6 g L⁻¹ inhibitor and 323 K, the inhibition efficiency (IE) reached 90.31 %, with the corrosion current density (J<sub>corr</sub>) decreasing from 2.04 × 10⁻⁴ A cm⁻² (control) to 2.01 × 10⁻⁵ A cm⁻². Adsorption behaviour transitioned from Freundlich-dominated (R² = 0.986 at 303 K) to Langmuir-dominated (R² = 0.998 at 323 K), indicating temperature-dependent monolayer formation, with ΔG°ads values between −16 and −25 kJ/mol confirming mixed adsorption mechanisms. Optical microscopy verified reduced surface degradation. Response Surface Methodology (RSM) optimization identified 0.541 g L⁻¹ inhibitor at 41.2 °C as optimal, yielding a corrosion rate (CR) of 0.19 mm/yr. These findings demonstrate that BBA-HAp provides effective, thermally stable, and sustainable corrosion protection for aluminium alloys in alkaline environments.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100177"},"PeriodicalIF":0.0,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924588","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

Designing AI-powered user-centric platforms for energy consumption and carbon footprint reduction 设计以人工智能为中心的用户平台，以减少能源消耗和碳足迹

Sustainable Chemistry One World

Pub Date : 2025-12-30 DOI: 10.1016/j.scowo.2025.100175

Daniel Chwaifo Malann , Ayomide Titus Ogungbemi , Great Iruoghene Edo , Ali B.M. Ali , Agatha Ngukuran Jikah , Emad Yousif , Uwadia Francis , Ufuoma Augustina Igbuku , Ephraim Evi Alex Oghroro , Arthur Efeoghene Athan Essaghah , Dina S. Ahmed , Maryam Rabiu Aliyu , Huzaifa Umar , Ahmed A. Alamiery

Artificial intelligence is critically positioned as a transformative technology in several industries, the energy industry not excluded. Its employment for the ideation and design of user-centric energy platforms and carbon footprint reduction is commonplace today. This comprehensive review synthesizes existing research to investigate the status quo of AI integration for diverse energy systems operations such as energy forecasting, smart grid applications, energy transmission and distribution, advanced energy materials innovation, renewable energy adoption, and reduced energy consumption, management of energy stores and electric vehicle charging for mitigated operation costs, reduced energy wastes and enhanced user comfort. As such, the study provides insight into what is and hence exposes what is yet to be of AI in energy systems. It further examines the critical role of AI for carbon footprint reduction strategies including vehicle emission reduction. The goes on to explore the impact of gamification on global sustainability strides, assessing how Makahiki, Ecogator and other “games with a purpose” influence people toward taking sustainability actions. The authors underscore that AI offers a new approach to making sustainability more engaging and actionable for everyday users, driving positive environmental impacts.

人工智能被关键地定位为几个行业的变革性技术，能源行业也不例外。如今，以用户为中心的能源平台的构思和设计以及碳足迹的减少已经司空见惯。本文综合了现有的研究，研究了人工智能在能源预测、智能电网应用、能源输配、先进能源材料创新、可再生能源采用、降低能源消耗、能源存储管理和电动汽车充电等多种能源系统运营中的集成现状，以降低运营成本、减少能源浪费和提高用户舒适度。因此，这项研究提供了对人工智能在能源系统中的应用的深入了解，从而揭示了人工智能在能源系统中的应用前景。它进一步研究了人工智能在包括车辆减排在内的碳足迹减少战略中的关键作用。接下来，他们探讨了游戏化对全球可持续发展进程的影响，评估了Makahiki、Ecogator和其他“有目的的游戏”如何影响人们采取可持续发展行动。作者强调，人工智能提供了一种新的方法，使可持续性对日常用户更具吸引力和可操作性，从而产生积极的环境影响。

{"title":"Designing AI-powered user-centric platforms for energy consumption and carbon footprint reduction","authors":"Daniel Chwaifo Malann , Ayomide Titus Ogungbemi , Great Iruoghene Edo , Ali B.M. Ali , Agatha Ngukuran Jikah , Emad Yousif , Uwadia Francis , Ufuoma Augustina Igbuku , Ephraim Evi Alex Oghroro , Arthur Efeoghene Athan Essaghah , Dina S. Ahmed , Maryam Rabiu Aliyu , Huzaifa Umar , Ahmed A. Alamiery","doi":"10.1016/j.scowo.2025.100175","DOIUrl":"10.1016/j.scowo.2025.100175","url":null,"abstract":"<div><div>Artificial intelligence is critically positioned as a transformative technology in several industries, the energy industry not excluded. Its employment for the ideation and design of user-centric energy platforms and carbon footprint reduction is commonplace today. This comprehensive review synthesizes existing research to investigate the status quo of AI integration for diverse energy systems operations such as energy forecasting, smart grid applications, energy transmission and distribution, advanced energy materials innovation, renewable energy adoption, and reduced energy consumption, management of energy stores and electric vehicle charging for mitigated operation costs, reduced energy wastes and enhanced user comfort. As such, the study provides insight into what is and hence exposes what is yet to be of AI in energy systems. It further examines the critical role of AI for carbon footprint reduction strategies including vehicle emission reduction. The goes on to explore the impact of gamification on global sustainability strides, assessing how Makahiki, Ecogator and other “games with a purpose” influence people toward taking sustainability actions. The authors underscore that AI offers a new approach to making sustainability more engaging and actionable for everyday users, driving positive environmental impacts.</div></div>","PeriodicalId":101197,"journal":{"name":"Sustainable Chemistry One World","volume":"9 ","pages":"Article 100175"},"PeriodicalIF":0.0,"publicationDate":"2025-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884219","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