Pub Date : 2025-12-07DOI: 10.1016/j.scca.2025.100171
Kasifah Kasifah , Amanda Patappari Firmansyah , Muhammad Roil Bilad
Alfisol soils exhibit inherent nutrient deficiencies, posing challenges for sustainable agriculture and climate resilience. This study evaluates the efficacy of vegetable waste compost as a sustainable soil amendment to enhance soil quality and improve the growth of pakcoy (Brassica chinensis L.), reducing reliance on synthetic fertilizers. A greenhouse experiment was conducted using four compost dosages (0, 10, 20, 30 t/ha). The highest compost application rate (30 t/ha) significantly increased plant height (from 14.2 cm in control to 15.8 cm) and shoot fresh weight (from 10.7 g in control to 20.5 g), indicating that the 30 t/ha treatment performed substantially better than the untreated control in improving nutrient availability, soil structure, and overall plant productivity. The gradual nutrient release from compost reduced the environmental risks associated with synthetic fertilizer leaching, aligning with circular economy principles. This study highlights the role of organic waste recycling in fostering sustainable soil management and mitigating climate change impacts. Future research should explore large-scale field applications and economic viability to facilitate broader adoption of compost-based soil enrichment strategies.
{"title":"Utilization of vegetable waste compost to improve nutrient availability and boost Pakcoy (Brassica chinensis L.) growth on nutrient deficient Alfisols","authors":"Kasifah Kasifah , Amanda Patappari Firmansyah , Muhammad Roil Bilad","doi":"10.1016/j.scca.2025.100171","DOIUrl":"10.1016/j.scca.2025.100171","url":null,"abstract":"<div><div>Alfisol soils exhibit inherent nutrient deficiencies, posing challenges for sustainable agriculture and climate resilience. This study evaluates the efficacy of vegetable waste compost as a sustainable soil amendment to enhance soil quality and improve the growth of pakcoy (<em>Brassica chinensis L.</em>), reducing reliance on synthetic fertilizers. A greenhouse experiment was conducted using four compost dosages (0, 10, 20, 30 t/ha). The highest compost application rate (30 t/ha) significantly increased plant height (from 14.2 cm in control to 15.8 cm) and shoot fresh weight (from 10.7 g in control to 20.5 g), indicating that the 30 t/ha treatment performed substantially better than the untreated control in improving nutrient availability, soil structure, and overall plant productivity. The gradual nutrient release from compost reduced the environmental risks associated with synthetic fertilizer leaching, aligning with circular economy principles. This study highlights the role of organic waste recycling in fostering sustainable soil management and mitigating climate change impacts. Future research should explore large-scale field applications and economic viability to facilitate broader adoption of compost-based soil enrichment strategies.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"8 ","pages":"Article 100171"},"PeriodicalIF":5.4,"publicationDate":"2025-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145799729","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}
Pub Date : 2025-12-07DOI: 10.1016/j.scca.2025.100172
Sitaram Meduri, Jalaiah Nandanavanam
Among the several metal organic frameworks (MOFs) investigated for gas sorption applications, MIL-101(Cr) stands as a potential material due to its superior pore characteristics. The commonly used modulator for its synthesis was hydrofluoric acid (HF), a highly corrosive and toxic reagent. Of the several modulators explored for replacing the HF, acetic acid and nitric acid are considered advantageous, as they offer high yield and better pore characteristics. This study aims to understand the role of a modulator on (i) structural properties and (ii) gas adsorption of MIL-101(Cr). Towards this, acetic acid and nitric acid were employed as modulators. The synthesized samples were characterized using various tools and examined for their adsorption performance of different gases (CO2, CH4, H2, and water vapour) at 25°C temperature. Incorporating a modulator during the synthesis of MIL-101(Cr) helped achieve higher crystallinity and more open metal sites (OMS) resulting in enhanced gas sorption. Under the tested conditions, the nitric acid-based sample exhibited CO2, CH4, H2, and water vapour adsorption capacities of 439.86, 183.08, 43.56, and 1384.96 cm3 g-1, respectively. This is attributed to its higher crystallinity, higher chromium content, and smaller pore diameter. Overall, this study elucidates the role of the modulator and correlates effectively the underlying chemistry on the sorption capacities of various gases.
{"title":"Facile synthesis of MIL-101(Cr) for enhanced gas sorption at room temperature","authors":"Sitaram Meduri, Jalaiah Nandanavanam","doi":"10.1016/j.scca.2025.100172","DOIUrl":"10.1016/j.scca.2025.100172","url":null,"abstract":"<div><div>Among the several metal organic frameworks (MOFs) investigated for gas sorption applications, MIL-101(Cr) stands as a potential material due to its superior pore characteristics. The commonly used modulator for its synthesis was hydrofluoric acid (HF), a highly corrosive and toxic reagent. Of the several modulators explored for replacing the HF, acetic acid and nitric acid are considered advantageous, as they offer high yield and better pore characteristics. This study aims to understand the role of a modulator on (i) structural properties and (ii) gas adsorption of MIL-101(Cr). Towards this, acetic acid and nitric acid were employed as modulators. The synthesized samples were characterized using various tools and examined for their adsorption performance of different gases (CO<sub>2</sub>, CH<sub>4</sub>, H<sub>2</sub>, and water vapour) at 25°C temperature. Incorporating a modulator during the synthesis of MIL-101(Cr) helped achieve higher crystallinity and more open metal sites (OMS) resulting in enhanced gas sorption. Under the tested conditions, the nitric acid-based sample exhibited CO<sub>2</sub>, CH<sub>4</sub>, H<sub>2</sub>, and water vapour adsorption capacities of 439.86, 183.08, 43.56, and 1384.96 cm<sup>3</sup> g<sup>-1</sup>, respectively. This is attributed to its higher crystallinity, higher chromium content, and smaller pore diameter. Overall, this study elucidates the role of the modulator and correlates effectively the underlying chemistry on the sorption capacities of various gases.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"8 ","pages":"Article 100172"},"PeriodicalIF":5.4,"publicationDate":"2025-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749878","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}
Pub Date : 2025-12-02DOI: 10.1016/j.scca.2025.100168
Md. Sadman Anjum Joarder , Md. Farial Kabir , Md. Hasibul Hasan , Md. Shafikul Islam , Ahmad Kutub
Industrialization and population growth have increased fossil fuel use, leading to rising carbon dioxide (CO2) emissions and a greater emphasis on carbon capture technologies, particularly CO2 separation techniques. Carbon dioxide separation technologies (CSTs) are viable and promising technologies that lower CO2 emissions from industrial processes and fossil fuel-based power plants. They are essential for fostering a greener future. This paper reviews key CSTs—membrane separation, adsorption, absorption, cryogenic separation, and chemical looping—with emphasis on their applicability, advantages, and limitations. This paper also provides a detailed study of CSTs with their respective operating and maintenance costs, effectiveness, scalability, environmental impact, and promises for future efficiency at the typical temperature, pressure, and composition of flue gases. Furthermore, the challenges associated with incorporating CO2 separation technologies into the current infrastructure are covered in this study, as well as providing an avenue to improve their performance and feasibility. In conclusion, this paper outlines potential avenues for further study that might spur innovation and hasten the worldwide adoption of CO2 separation technology.
{"title":"CO2 separation technologies: Clean energy solutions for greening environment","authors":"Md. Sadman Anjum Joarder , Md. Farial Kabir , Md. Hasibul Hasan , Md. Shafikul Islam , Ahmad Kutub","doi":"10.1016/j.scca.2025.100168","DOIUrl":"10.1016/j.scca.2025.100168","url":null,"abstract":"<div><div>Industrialization and population growth have increased fossil fuel use, leading to rising carbon dioxide (CO<sub>2</sub>) emissions and a greater emphasis on carbon capture technologies, particularly CO<sub>2</sub> separation techniques. Carbon dioxide separation technologies (CSTs) are viable and promising technologies that lower CO<sub>2</sub> emissions from industrial processes and fossil fuel-based power plants. They are essential for fostering a greener future. This paper reviews key CSTs—membrane separation, adsorption, absorption, cryogenic separation, and chemical looping—with emphasis on their applicability, advantages, and limitations. This paper also provides a detailed study of CSTs with their respective operating and maintenance costs, effectiveness, scalability, environmental impact, and promises for future efficiency at the typical temperature, pressure, and composition of flue gases. Furthermore, the challenges associated with incorporating CO<sub>2</sub> separation technologies into the current infrastructure are covered in this study, as well as providing an avenue to improve their performance and feasibility. In conclusion, this paper outlines potential avenues for further study that might spur innovation and hasten the worldwide adoption of CO<sub>2</sub> separation technology.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"8 ","pages":"Article 100168"},"PeriodicalIF":5.4,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938513","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}
Expanded polystyrene (EPS) waste from food containers and protective packaging poses a significant threat to the environment. Similarly, palm fronds (PF), which are byproducts of oil palm plantations, are often left to decompose after harvesting. Both EPS and PF serve as potential raw materials for energy production. Co-pyrolysis, a process that utilizes EPS waste and PF together, is a promising method for advancing the circular economy. This research aimed to analyze the composition of the light fraction of pyrolysis oil and to evaluate the effective use of this light fraction to enhance the research octane number (RON) of gasoline. The co-pyrolysis process was conducted using various mass ratios of PF to EPS as 10:90, 82:18, and 90:10 at temperatures of 300, 400, and 500 °C in a bench-scale unit with an 8-liter reactor capacity for feed. Under various temperatures and mass ratios of PF to EPS, the yield of pyrolysis oil ranged from 9.67 to 83.12 wt.%. To separate the light fraction around the gasoline boiling point, the pyrolysis oil was treated with a rotary vacuum evaporator. A higher amount of light fraction was produced from pyrolysis oil with a PF to EPS mass ratio of 10:90. The separated light fraction consisted of two phases: an oil phase and an aqueous phase. The yields of the oil phase were 39.99 %, 45.17 %, and 42.50 % for pyrolysis oil produced at 300, 400, and 500 °C, respectively. The oil phase of the light fraction was analyzed using gas chromatography-detailed hydrocarbon analysis (GC-DHA) to predict its research octane number (RON). The oil phase produced from a PF to EPS mass ratio of 10:90 at 300 °C had a higher RON value of 106. This oil phase contained 98.41 % monoaromatic hydrocarbons, with the main chemical compounds being 44.0 % styrene, 27.9 % ethylbenzene, and 16.6 % α-methylstyrene. Incorporating 5 % by volume of this oil phase into 95 % gasoline increased the RON from 90.0 to 91.5. In line with the principles of a circular economy, the presence of EPS waste and palm fronds—currently underutilized materials—is reduced and repurposed in the energy sector. This is achieved through the co-pyrolysis process, followed by the separation of lighter fractions for liquid fuel application.
{"title":"Upcycling of palm fronds and expanded polystyrene waste for producing liquid fuels with enhanced octane rating","authors":"Dieni Mansur , Wido Lesar Ignasius Purba , Alisyah Putri Desvi Takahasi","doi":"10.1016/j.scca.2025.100167","DOIUrl":"10.1016/j.scca.2025.100167","url":null,"abstract":"<div><div>Expanded polystyrene (EPS) waste from food containers and protective packaging poses a significant threat to the environment. Similarly, palm fronds (PF), which are byproducts of oil palm plantations, are often left to decompose after harvesting. Both EPS and PF serve as potential raw materials for energy production. Co-pyrolysis, a process that utilizes EPS waste and PF together, is a promising method for advancing the circular economy. This research aimed to analyze the composition of the light fraction of pyrolysis oil and to evaluate the effective use of this light fraction to enhance the research octane number (RON) of gasoline. The co-pyrolysis process was conducted using various mass ratios of PF to EPS as 10:90, 82:18, and 90:10 at temperatures of 300, 400, and 500 °C in a bench-scale unit with an 8-liter reactor capacity for feed. Under various temperatures and mass ratios of PF to EPS, the yield of pyrolysis oil ranged from 9.67 to 83.12 wt.%. To separate the light fraction around the gasoline boiling point, the pyrolysis oil was treated with a rotary vacuum evaporator. A higher amount of light fraction was produced from pyrolysis oil with a PF to EPS mass ratio of 10:90. The separated light fraction consisted of two phases: an oil phase and an aqueous phase. The yields of the oil phase were 39.99 %, 45.17 %, and 42.50 % for pyrolysis oil produced at 300, 400, and 500 °C, respectively. The oil phase of the light fraction was analyzed using gas chromatography-detailed hydrocarbon analysis (GC-DHA) to predict its research octane number (RON). The oil phase produced from a PF to EPS mass ratio of 10:90 at 300 °C had a higher RON value of 106. This oil phase contained 98.41 % monoaromatic hydrocarbons, with the main chemical compounds being 44.0 % styrene, 27.9 % ethylbenzene, and 16.6 % α-methylstyrene. Incorporating 5 % by volume of this oil phase into 95 % gasoline increased the RON from 90.0 to 91.5. In line with the principles of a circular economy, the presence of EPS waste and palm fronds—currently underutilized materials—is reduced and repurposed in the energy sector. This is achieved through the co-pyrolysis process, followed by the separation of lighter fractions for liquid fuel application.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"8 ","pages":"Article 100167"},"PeriodicalIF":5.4,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749877","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}
Pub Date : 2025-11-27DOI: 10.1016/j.scca.2025.100165
Yustina M. Pusparizkita , Wolfgang W Schmahl , Geraldus D. Ardian Satria , Rifky Ismail , J. Jamari , Athanasius P. Bayuseno
This study focuses on developing a sustainable method for producing high-purity, nanocrystalline, ion-substituted natural hydroxyapatite (HA) from bovine bone waste through sequential calcination and hydrothermal treatment, and to characterize its physicochemical and morphological properties for potential biomedical applications. Calcination at 900 °C for 8 h removed organic matter and produced 90 wt.% crystalline HA. Hydrothermal treatment with diammonium hydrogen phosphate (pH 7.5–8.0) at 110 °C for 12–18 h produced magnesium (Mg) and sodium (Na) ion-substituted carbonated HA with Ca/P ratios of 1.6–1.9. Scanning Electron Microscopy (SEM) analysis showed nanocrystals of 60–80 nm forming non-uniform agglomerates of 0.1–0.5 mm. The combination of high yield, ion substitution, and nanoscale morphology indicates strong potential across various fields, particularly in biomedical applications, environmental sustainability, and agriculture.
{"title":"Synthesizing calcium phosphate powder from bovine bone wastes using calcination and hydrothermal techniques to evaluate physicochemical properties and mineralogy speciation","authors":"Yustina M. Pusparizkita , Wolfgang W Schmahl , Geraldus D. Ardian Satria , Rifky Ismail , J. Jamari , Athanasius P. Bayuseno","doi":"10.1016/j.scca.2025.100165","DOIUrl":"10.1016/j.scca.2025.100165","url":null,"abstract":"<div><div>This study focuses on developing a sustainable method for producing high-purity, nanocrystalline, ion-substituted natural hydroxyapatite (HA) from bovine bone waste through sequential calcination and hydrothermal treatment, and to characterize its physicochemical and morphological properties for potential biomedical applications. Calcination at 900 °C for 8 h removed organic matter and produced 90 wt.% crystalline HA. Hydrothermal treatment with diammonium hydrogen phosphate (pH 7.5–8.0) at 110 °C for 12–18 h produced magnesium (Mg) and sodium (Na) ion-substituted carbonated HA with Ca/P ratios of 1.6–1.9. Scanning Electron Microscopy (SEM) analysis showed nanocrystals of 60–80 nm forming non-uniform agglomerates of 0.1–0.5 mm. The combination of high yield, ion substitution, and nanoscale morphology indicates strong potential across various fields, particularly in biomedical applications, environmental sustainability, and agriculture.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"8 ","pages":"Article 100165"},"PeriodicalIF":5.4,"publicationDate":"2025-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145646074","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}
The study details the primary comparative phyto-optimized green synthesis of four metal oxide nanoparticles—Ag₂O, SnO₂, PbO, and Fe₃O₄—using Hylocereus undatus (dragon fruit) extract as a natural reducing and stabilizing agent. The average crystallite sizes of the biosynthesized nanoparticles were found to range from 29 to 45 nm, as revealed by XRD and TEM analyses. FTIR spectra showed the presence of phytochemical functional groups, suggesting their role in the reduction and stabilization. The nanoparticles displayed considerable antibacterial action, inhibiting S. aureus and E. coli at MICs of 12.5–50 µg mL⁻¹, and exhibited a dose-dependent antioxidant effect, reaching a maximum of 90% DPPH scavenging with Ag₂O. Under UV light, the degradation of methyl orange reached 85% efficiency for SnO₂ within 5 hours, based on a pseudo-first-order kinetic model. Due to its smaller particle size and enhanced surface plasmon resonance, Ag₂O displayed superior multifunctional performance compared to the other four oxides. These findings show that using H. undatus for synthesis offers an environmentally friendly method to create high-performance metal oxide nanomaterials for various applications in the environment and healthcare sectors.
以火龙果提取物为天然还原剂和稳定剂，对ag₂O、SnO₂、PbO和Fe₃O₄四种金属氧化物纳米颗粒进行了初步的植物优化比较绿色合成。XRD和TEM分析表明，合成的纳米颗粒的平均晶粒尺寸在29 ~ 45 nm之间。FTIR光谱显示了植物化学官能团的存在，表明它们在还原和稳定中的作用。纳米颗粒显示出相当大的抗菌作用，在12.5-50µg mL - 1的mic范围内抑制金黄色葡萄球菌和大肠杆菌，并表现出剂量依赖性的抗氧化作用，与Ag₂O的DPPH清除率最高可达90%。在紫外光作用下，基于准一级动力学模型，甲基橙在5小时内对SnO 2的降解效率达到85%。由于其较小的粒径和增强的表面等离子体共振，与其他四种氧化物相比，Ag₂O表现出优越的多功能性能。这些发现表明，使用H. undatus进行合成提供了一种环保的方法来制造高性能的金属氧化物纳米材料，可用于环境和医疗保健领域的各种应用。
{"title":"Phyto-optimised Ag, Sn, Pb, And Fe oxide nanoparticles from nine precursors: A comparative study of antimicrobial, antioxidant, and photocatalytic activities","authors":"Yuvaraj Tamilselvi , Loganathan Lingeshwaran , Kanagasabapathy Sivasubramanian , Palanivel Velmurugan , Subhashree Kuppusamy , Seema siddharthan , Moorthy Muruganandham , Jeyanthi Rebecca Livingstone","doi":"10.1016/j.scca.2025.100164","DOIUrl":"10.1016/j.scca.2025.100164","url":null,"abstract":"<div><div>The study details the primary comparative phyto-optimized green synthesis of four metal oxide nanoparticles—Ag₂O, SnO₂, PbO, and Fe₃O₄—using <em>Hylocereus undatus</em> (dragon fruit) extract as a natural reducing and stabilizing agent. The average crystallite sizes of the biosynthesized nanoparticles were found to range from 29 to 45 nm, as revealed by XRD and TEM analyses. FTIR spectra showed the presence of phytochemical functional groups, suggesting their role in the reduction and stabilization. The nanoparticles displayed considerable antibacterial action, inhibiting <em>S. aureus</em> and <em>E. coli</em> at MICs of 12.5–50 µg mL⁻¹, and exhibited a dose-dependent antioxidant effect, reaching a maximum of 90% DPPH scavenging with Ag₂O. Under UV light, the degradation of methyl orange reached 85% efficiency for SnO₂ within 5 hours, based on a pseudo-first-order kinetic model. Due to its smaller particle size and enhanced surface plasmon resonance, Ag₂O displayed superior multifunctional performance compared to the other four oxides. These findings show that using <em>H. undatus</em> for synthesis offers an environmentally friendly method to create high-performance metal oxide nanomaterials for various applications in the environment and healthcare sectors.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"8 ","pages":"Article 100164"},"PeriodicalIF":5.4,"publicationDate":"2025-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145694620","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}
Pub Date : 2025-11-14DOI: 10.1016/j.scca.2025.100161
Suleman Basha H , Nadhira Mohamed , Kavitha Jayaseelan , Seetharaman Rathinam , Kokilambigai K S
The growing reliance on diverse analytical techniques and chemical solvents has raised significant environmental concerns due to their potential ecological impact. Dapagliflozin, a novel and effective SGLT2 inhibitor, has gained attention for its strong therapeutic benefits in managing type 2 diabetes mellitus, particularly due to its insulin-independent action and added cardiovascular protection. This study consolidates and critically evaluates the diverse analytical techniques established for the quantification of Dapagliflozin across distinct matrices, including its fixed-dose combinations. The methodologies encompass a broad spectrum of instrumental techniques, including UV spectrophotometry, high-performance liquid chromatography, high-performance thin-layer chromatography, ultra-performance liquid chromatography, and liquid chromatography–mass spectrometry. A special emphasis is placed on the types of solvents employed in these methods and the associated solvent waste, which is evaluated to determine the environmental sustainability of each approach. The environmental sustainability of these approaches was evaluated using established tools such as the Analytical Eco-Scale, Green Analytical Procedure Index, and AGREE metrics. This review aims to support the advancement of greener analytical strategies that ensure both the reliable quantification of Dapagliflozin and a reduced ecological footprint.
{"title":"Advancing Green Chemistry in Dapagliflozin analysis: A critical review of analytical methods and their environmental footprint","authors":"Suleman Basha H , Nadhira Mohamed , Kavitha Jayaseelan , Seetharaman Rathinam , Kokilambigai K S","doi":"10.1016/j.scca.2025.100161","DOIUrl":"10.1016/j.scca.2025.100161","url":null,"abstract":"<div><div>The growing reliance on diverse analytical techniques and chemical solvents has raised significant environmental concerns due to their potential ecological impact. Dapagliflozin, a novel and effective SGLT2 inhibitor, has gained attention for its strong therapeutic benefits in managing type 2 diabetes mellitus, particularly due to its insulin-independent action and added cardiovascular protection. This study consolidates and critically evaluates the diverse analytical techniques established for the quantification of Dapagliflozin across distinct matrices, including its fixed-dose combinations. The methodologies encompass a broad spectrum of instrumental techniques, including UV spectrophotometry, high-performance liquid chromatography, high-performance thin-layer chromatography, ultra-performance liquid chromatography, and liquid chromatography–mass spectrometry. A special emphasis is placed on the types of solvents employed in these methods and the associated solvent waste, which is evaluated to determine the environmental sustainability of each approach. The environmental sustainability of these approaches was evaluated using established tools such as the Analytical Eco-Scale, Green Analytical Procedure Index, and AGREE metrics. This review aims to support the advancement of greener analytical strategies that ensure both the reliable quantification of Dapagliflozin and a reduced ecological footprint.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100161"},"PeriodicalIF":5.4,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145578810","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}
Pub Date : 2025-11-14DOI: 10.1016/j.scca.2025.100163
Suhad Sh. Jaroo, Mohanad J. M-Ridha
A biophotovoltaic technology (bio cathode MDC) on a new platform, featuring five cells instead of the customary three, is used to investigate MDC’s potential for treating specific minerals in real saline groundwater. The study examined how salt levels and nutrient concentrations affected the system’s performance in three concentration scenarios with a continuous operating mode. The experimental findings included power density with 1000 Ω of external resistance present, desalination efficiency, heavy-metal (copper) removal efficiency, hard-metal (magnesium and calcium) removal efficiency, percentages of chemical oxygen demand (COD) removed, percentages of nitrate and phosphate removed, and algae cultivation performance. The highest power densities were 49.8 mW/m² and 205.44 mW/m³, calculated based on the anode surface area and the anolyte volume, respectively, with a maximum total dissolved solids (TDS) removal of 55%. The highest ion removal percentages were 78.36%, 72.57%, and 96.9% for magnesium, calcium, and copper, respectively. The COD removal rate was 90.6%, with the highest clearances of 93.1% for phosphate and 84.55% for nitrate. The algae had a dry weight of 16 g/L. With this expanded platform, which provides more capacity to handle larger volumes of wastewater and to generate electricity, the MDC system efficiently removes minerals from saline water. It simultaneously enables the desalination of more saline water and the treatment of other effluents by using light to cultivate algae. Biophotovoltaic is a promising treatment method that could be applied to various industrial effluents.
{"title":"Removing Cu (II), Mg (II), and Ca (II) ions from saline groundwater using a biophotovoltaic (biocathode microbial desalination cell) technology","authors":"Suhad Sh. Jaroo, Mohanad J. M-Ridha","doi":"10.1016/j.scca.2025.100163","DOIUrl":"10.1016/j.scca.2025.100163","url":null,"abstract":"<div><div>A biophotovoltaic technology (bio cathode MDC) on a new platform, featuring five cells instead of the customary three, is used to investigate MDC’s potential for treating specific minerals in real saline groundwater. The study examined how salt levels and nutrient concentrations affected the system’s performance in three concentration scenarios with a continuous operating mode. The experimental findings included power density with 1000 Ω of external resistance present, desalination efficiency, heavy-metal (copper) removal efficiency, hard-metal (magnesium and calcium) removal efficiency, percentages of chemical oxygen demand (COD) removed, percentages of nitrate and phosphate removed, and algae cultivation performance. The highest power densities were 49.8 mW/m² and 205.44 mW/m³, calculated based on the anode surface area and the anolyte volume, respectively, with a maximum total dissolved solids (TDS) removal of 55%. The highest ion removal percentages were 78.36%, 72.57%, and 96.9% for magnesium, calcium, and copper, respectively. The COD removal rate was 90.6%, with the highest clearances of 93.1% for phosphate and 84.55% for nitrate. The algae had a dry weight of 16 g/L. With this expanded platform, which provides more capacity to handle larger volumes of wastewater and to generate electricity, the MDC system efficiently removes minerals from saline water. It simultaneously enables the desalination of more saline water and the treatment of other effluents by using light to cultivate algae. Biophotovoltaic is a promising treatment method that could be applied to various industrial effluents.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100163"},"PeriodicalIF":5.4,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145578812","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}
Pub Date : 2025-11-13DOI: 10.1016/j.scca.2025.100162
Srinivas Prasad Sanaka, K. Ramanaiah, Pulipaka Vanni
With the global push toward decarbonization and sustainable energy solutions, the demand for clean hydrogen production using electrolysis has surged in recent years. The objective of this experimental study is to investigate the effect of applied voltage on the performance of Proton Exchange Membrane (PEM) electrolyser at different operating temperatures. The experimental tests are conducted using PEM electrolyzer equipped with a Nafion 115 membrane electrode assembly. The PEM electrolyser begins producing measurable hydrogen and oxygen only above a threshold voltage of 1.6 V. The highest hydrogen production observed was 13.88 ml/min at 2.54 V and 1.7 A. The findings from this study have significant implications for optimizing the performance of PEM electrolysers in clean hydrogen production.
{"title":"Performance analysis of Pem Electrolyser for green hydrogen production","authors":"Srinivas Prasad Sanaka, K. Ramanaiah, Pulipaka Vanni","doi":"10.1016/j.scca.2025.100162","DOIUrl":"10.1016/j.scca.2025.100162","url":null,"abstract":"<div><div>With the global push toward decarbonization and sustainable energy solutions, the demand for clean hydrogen production using electrolysis has surged in recent years. The objective of this experimental study is to investigate the effect of applied voltage on the performance of Proton Exchange Membrane (PEM) electrolyser at different operating temperatures. The experimental tests are conducted using PEM electrolyzer equipped with a Nafion 115 membrane electrode assembly. The PEM electrolyser begins producing measurable hydrogen and oxygen only above a threshold voltage of 1.6 V. The highest hydrogen production observed was 13.88 ml/min at 2.54 V and 1.7 A. The findings from this study have significant implications for optimizing the performance of PEM electrolysers in clean hydrogen production.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100162"},"PeriodicalIF":5.4,"publicationDate":"2025-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145578811","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}
Pub Date : 2025-11-10DOI: 10.1016/j.scca.2025.100160
Usama Ahmed
The accelerating global demand for hydrogen is pushing for renewable and waste derived hydrogen production processes, where, date palm waste (DPW) has been identified as an available and unexploited agricultural residue that has the potential to be a sustainable source of hydrogen. The current work focuses on developing and evaluating four different process configurations in terms of energy, environment and economics for producing hydrogen from DPW using Aspen Plus® simulation tool. Case 1 represents the standalone DPW gasification with CO₂ capture via methanol absorption, Case 2 represents the DPW gasification with CaO-based chemical looping for CO₂ capture, Case 3 represents the DPW gasification integrated with steam methane reforming (SMR) and methanol-based CO₂ capture, and Case 4 represents the DPW gasification integrated with SMR and CaO-based CO₂ capture. Each case was evaluated in terms of syngas composition, hydrogen production, lower heating value, CO₂ captured, utility demand, process efficiency, and H2 production cost. Hydrogen production ranged from 974.55 t/year (Case 1) and 988.83 t/year (Case 2) to 2032.32 t/year (Case 3) and 2048.61 t/year (Case 4). CO₂ capture was also more effective in Case 4 (16,929.49 t/year) compared to Case 1 (7676.30 t/year). Process efficiency improved from 33 % in Case 1 to 47 % in Case 2, and from 32 % in Case 3 to further to 55 % in Case 4. Economically, Case 1 offered the highest hydrogen production cost ($5.03/kg) followed by Case 2 ($4.77/kg), while Case 3 and Case 4 achieved significantly lower production costs of $2.89/kg and $2.69/kg, respectively.
{"title":"Circular bioenergy pathway for sustainable hydrogen production with carbon capture: Technical, economic & environmental assessment","authors":"Usama Ahmed","doi":"10.1016/j.scca.2025.100160","DOIUrl":"10.1016/j.scca.2025.100160","url":null,"abstract":"<div><div>The accelerating global demand for hydrogen is pushing for renewable and waste derived hydrogen production processes, where, date palm waste (DPW) has been identified as an available and unexploited agricultural residue that has the potential to be a sustainable source of hydrogen. The current work focuses on developing and evaluating four different process configurations in terms of energy, environment and economics for producing hydrogen from DPW using Aspen Plus® simulation tool. Case 1 represents the standalone DPW gasification with CO₂ capture via methanol absorption, Case 2 represents the DPW gasification with CaO-based chemical looping for CO₂ capture, Case 3 represents the DPW gasification integrated with steam methane reforming (SMR) and methanol-based CO₂ capture, and Case 4 represents the DPW gasification integrated with SMR and CaO-based CO₂ capture. Each case was evaluated in terms of syngas composition, hydrogen production, lower heating value, CO₂ captured, utility demand, process efficiency, and H<sub>2</sub> production cost. Hydrogen production ranged from 974.55 t/year (Case 1) and 988.83 t/year (Case 2) to 2032.32 t/year (Case 3) and 2048.61 t/year (Case 4). CO₂ capture was also more effective in Case 4 (16,929.49 t/year) compared to Case 1 (7676.30 t/year). Process efficiency improved from 33 % in Case 1 to 47 % in Case 2, and from 32 % in Case 3 to further to 55 % in Case 4. Economically, Case 1 offered the highest hydrogen production cost ($5.03/kg) followed by Case 2 ($4.77/kg), while Case 3 and Case 4 achieved significantly lower production costs of $2.89/kg and $2.69/kg, respectively.</div></div>","PeriodicalId":101195,"journal":{"name":"Sustainable Chemistry for Climate Action","volume":"7 ","pages":"Article 100160"},"PeriodicalIF":5.4,"publicationDate":"2025-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145527816","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号