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Electrodialytic lithium extraction from secondary resources: Technical, environmental and economic assessment 二次资源电析提锂:技术、环境和经济评价
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-08 DOI: 10.1016/j.scp.2025.102189
Joana Almeida , Joana R. Gouveia , Inês S. Ribeiro , Carolina Pires , Eduardo P. Mateus , Alexandra B. Ribeiro
{"title":"Electrodialytic lithium extraction from secondary resources: Technical, environmental and economic assessment","authors":"Joana Almeida ,&nbsp;Joana R. Gouveia ,&nbsp;Inês S. Ribeiro ,&nbsp;Carolina Pires ,&nbsp;Eduardo P. Mateus ,&nbsp;Alexandra B. Ribeiro","doi":"10.1016/j.scp.2025.102189","DOIUrl":"10.1016/j.scp.2025.102189","url":null,"abstract":"<div><div>In transportation, large-scale electrification, particularly through lithium-ion batteries, is expected to drive significant emissions reductions while simultaneously increasing global lithium demand. However, the limited availability of lithium, compounded by geopolitical constraints, poses risks to the energy transition, namely in the European Union. Adopting circular economy models offers a sustainable approach to increase resource recovery. The present research aims to assess the potential of the electrodialytic process for lithium recovery from wastewater generated during lithium-ion battery recycling and aluminium-lithium alloy dust processing, as well as related environmental and economic impacts. Bench-scale experiments were conducted using two-compartment electrodialytic reactors, operated at 50 mA, 100 mA and 200 mA with a cation-exchange membrane interposed. Tests were performed over 24 h, 48 h and 72 h. Lithium recovery reached 91.54 % from the aluminium-lithium alloy dust and 97.23 % from the wastewater of lithium-ion battery recycling. The cradle-to-gate life cycle assessment resulted in 0.26 kg of CO<sub>2</sub> eq/g Li global warming impacts for wastewater of lithium-ion battery recycling, and 46.40 kg of CO<sub>2</sub> eq/g Li for aluminium-lithium alloy dust. Material flow cost accounting showed lower recovery costs for wastewater (0.36 €/g Li versus 129.26 €/g Li). Energy consumption in the reactor is the primary hotspot, where optimizing energy and time efficiency could reduce environmental and economic impacts.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"48 ","pages":"Article 102189"},"PeriodicalIF":5.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Collaborative strategies for enhancing pro-environmental behavior in renovation waste management: An evolutionary game approach to achieving a circular economy 在翻新废物管理中加强亲环境行为的合作策略:实现循环经济的进化博弈方法
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-08 DOI: 10.1016/j.scp.2025.102192
Zheng Zhou , Yong Liu , Jian Li Hao , Shiwang Yu , Martin Skitmore , Caimiao Zheng
{"title":"Collaborative strategies for enhancing pro-environmental behavior in renovation waste management: An evolutionary game approach to achieving a circular economy","authors":"Zheng Zhou ,&nbsp;Yong Liu ,&nbsp;Jian Li Hao ,&nbsp;Shiwang Yu ,&nbsp;Martin Skitmore ,&nbsp;Caimiao Zheng","doi":"10.1016/j.scp.2025.102192","DOIUrl":"10.1016/j.scp.2025.102192","url":null,"abstract":"<div><div>The growing volume of renovation waste presents major environmental and societal challenges, pressing governments and contractors to find effective solutions. Encouraging pro-environmental behavior (PEB) among renovation workers is essential for reducing waste at its source. However, the lack of coordinated and stable strategies among key stakeholders, workers, contractors, and local governments impeded effective PEB implementation on renovation sites. This study utilizes an evolutionary game model to investigate these stakeholders' dynamic decision-making processes and develop collaborative strategies for enhancing PEB. Initially, a payoff matrix was constructed for the three stakeholders. Each stakeholder's equilibrium and stability strategies were analyzed, and simulations assessed the impact of initial strategy choices and parameter variations on decision-making. The findings indicate that (1) Government incentives and penalties are effective in motivating contractors and workers to adopt PEB; (2) The government's influence on workers' PEB is indirect, whereas contractors exert a more direct influence; and (3) Optimal strategies vary with the industrial development stage: early-stage strategies are less effective, while mature-stage strategies see increased engagement in PEB by workers and contractors, with the government adopting more relaxed regulatory approaches. These insights suggest targeted measures to achieve PEB in renovation waste through multi-party collaboration to realize a circular economy.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"48 ","pages":"Article 102192"},"PeriodicalIF":5.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","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 spectrofluorimetric method for argatroban determination using Rhodamine B as an “on-off” fluorescent probe with Box-Behnken optimization and sustainability assessment 基于Box-Behnken优化和可持续性评价的罗丹明B荧光探针测定阿加曲班的新方法
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-08 DOI: 10.1016/j.scp.2025.102193
Ahmed Serag , Maram H. Abduljabbar , Reem M. Alnemari , Atiah H. Almalki
{"title":"A novel spectrofluorimetric method for argatroban determination using Rhodamine B as an “on-off” fluorescent probe with Box-Behnken optimization and sustainability assessment","authors":"Ahmed Serag ,&nbsp;Maram H. Abduljabbar ,&nbsp;Reem M. Alnemari ,&nbsp;Atiah H. Almalki","doi":"10.1016/j.scp.2025.102193","DOIUrl":"10.1016/j.scp.2025.102193","url":null,"abstract":"<div><div>A novel, sensitive, and environmentally sustainable spectrofluorimetric method was developed for the determination of argatroban using Rhodamine B as an “on-off” fluorescent probe. The interaction mechanism between argatroban and Rhodamine B was thoroughly investigated through spectroscopic studies, Stern-Volmer analysis, and Job's method. Results revealed that argatroban effectively quenched the fluorescence of Rhodamine B through static quenching with a Stern-Volmer constant (Ksv) of 7.07 × 10<sup>5</sup> M<sup>−1</sup>, indicating a strong static quenching process. Response surface methodology based on Box-Behnken design was employed to identify the critical factors affecting quenching efficiency. Analysis of variance revealed that pH and Rhodamine B concentration significantly influenced the response, while reaction time showed minimal impact. Through systematic investigation of the response surfaces and model validation, optimal analytical conditions were determined to be pH 7.5, Rhodamine B volume 2.6 mL, and reaction time 3 min. The developed method exhibited a linear response across the concentration range 0.1–3.0 μg/mL with detection limit of 0.0324 μg/mL. Validation studies confirmed the method's precision, accuracy, and robustness in accordance with ICH guidelines. Application to complex matrices demonstrated the method's selectivity and practical utility, with recoveries from 95.03 to 104.98 % in spiked plasma and environmental water samples. Notably, sustainability assessment using AGREE (score: 0.64), BAGI (score: 70), and RGB12 (whiteness: 90.1 %) tools demonstrated that this method offers significant environmental advantages over conventional chromatographic techniques. By combining analytical reliability with environmental sustainability, this simple and cost-effective approach provides a viable alternative for argatroban determination in pharmaceutical quality control and environmental monitoring applications.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"48 ","pages":"Article 102193"},"PeriodicalIF":5.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ba(OH)2-activated hemihydrate phosphogypsum-based slag concrete: Influence of water-binder ratio on compressive strength, water resistance and microstructure Ba(OH)2活化半水磷石膏渣基混凝土:水胶比对抗压强度、抗水性和微观结构的影响
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-07 DOI: 10.1016/j.scp.2025.102190
Daiyu Zhou , Lingling Wang , Yan Zhu , Dewen Kong , Ninggui Hu , Zeyuan Wang , Nauman Khan
{"title":"Ba(OH)2-activated hemihydrate phosphogypsum-based slag concrete: Influence of water-binder ratio on compressive strength, water resistance and microstructure","authors":"Daiyu Zhou ,&nbsp;Lingling Wang ,&nbsp;Yan Zhu ,&nbsp;Dewen Kong ,&nbsp;Ninggui Hu ,&nbsp;Zeyuan Wang ,&nbsp;Nauman Khan","doi":"10.1016/j.scp.2025.102190","DOIUrl":"10.1016/j.scp.2025.102190","url":null,"abstract":"<div><div>The quaternary cementitious system exhibited better performances and optimizing water-binder ratio was a low energy consumption approach to improve the properties of cementitious materials. This study presented an innovative quaternary cementitious system of Ba(OH)<sub>2</sub>-activatied hemihydrate phosphogypsum-based slag concrete(HPG-SC) to achieve the modification mode of Ba alkali on HPG-SC “primary modification” + “secondary activation”. The experiments were conducted on HPG-SCs to reveal the effects of water-binder ratio on compressive strength, water resistance and microstructure of HPG-SC. The experimental results showed that compressive strength and water resistance increased firstly and then decreased as the water-binder ratio increased from 0.27 to 0.39. The 28-day compressive strength and air-dried softening coefficient of W-0.33 were 34.8 MPa and 0.85, respectively. The effect mechanisms of water-binder ratio were explained from the micro-morphologies, pore diameter and porosity. The water-binder ratio adjusted the hydration rate of cementitious system to increase the compactness and compressive strength. Moreover, the lowest first peak diameter was observed and the lower porosity was 43.32 % in W-0.33 specimen. Therefore, HPG-SC showed better compressive strength and water resistance at the suitable water-binder ratio, and was beneficial for the application in construction engineering.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"48 ","pages":"Article 102190"},"PeriodicalIF":5.8,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-stage closed-loop regeneration of spent lithium iron phosphate cathodes via high-pressure oxidative leaching 高压氧化浸出废旧磷酸铁锂阴极的多级闭环再生
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-07 DOI: 10.1016/j.scp.2025.102204
Zhenhua Xu , Xiaoming Zhang , Songyang Zhang , Jian-an Chen , Quanfeng Shen , Changchun Wang , Xin Wang , Guoyong Huang
{"title":"Multi-stage closed-loop regeneration of spent lithium iron phosphate cathodes via high-pressure oxidative leaching","authors":"Zhenhua Xu ,&nbsp;Xiaoming Zhang ,&nbsp;Songyang Zhang ,&nbsp;Jian-an Chen ,&nbsp;Quanfeng Shen ,&nbsp;Changchun Wang ,&nbsp;Xin Wang ,&nbsp;Guoyong Huang","doi":"10.1016/j.scp.2025.102204","DOIUrl":"10.1016/j.scp.2025.102204","url":null,"abstract":"<div><div>Due to their high safety and long cycle life, lithium iron phosphate (LFP) batteries are widely adopted in electric vehicles and energy storage systems. As the first generation of power batteries reaches their end-of-life, the development of efficient and environmentally friendly recycling technologies has become an imminent need. A method of green leaching and regeneration of spent lithium iron phosphate is proposed. In this work, the high-pressure oxidation leaching of iron phosphate residue, acid solubilization, synthesis, aging, and calcination were conducted to regenerate iron phosphate. Simultaneously, the pure lithium solution obtained in the preceding step was precipitated to obtain high-purity lithium carbonate. Subsequently, the recovered iron phosphate was synthesised with lithium carbonate to obtain regenerated lithium iron phosphate, whose physical and chemical properties comply with the Chinese standard (YS/T 582–2013). The initial specific capacity of the coin cell assembled with recycled lithium iron phosphate was 132.2 mAh/g at 1C, and the specific capacity remaine 53.0 mAh/g after 1000 cycles, corresponding to a capacity retention rate of 40.0 %, which is consistent with the performance of commercial lithium iron phosphate. When assembling soft pack batteries with recycled lithium iron phosphate as the cathode, the batteries have passed safety performance tests such as nail penetration, extrusion, and short circuit, demonstrating good safety performance. The corresponding all-solid-state battery performance is also comparable to that of commercial lithium iron phosphate. This approach will be conducive to arge-scale recycling of spent batteries in the future.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"48 ","pages":"Article 102204"},"PeriodicalIF":5.8,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring pore solution chemistry and solid phase assemblies in cement-based electrolytes for potential structural batteries 探索潜在结构电池中水泥基电解质的孔隙溶液化学和固相组合
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-06 DOI: 10.1016/j.scp.2025.102194
Sundaramoorthi Arjun, Thangaraju Palanisamy
{"title":"Exploring pore solution chemistry and solid phase assemblies in cement-based electrolytes for potential structural batteries","authors":"Sundaramoorthi Arjun,&nbsp;Thangaraju Palanisamy","doi":"10.1016/j.scp.2025.102194","DOIUrl":"10.1016/j.scp.2025.102194","url":null,"abstract":"<div><div>This study develops a sustainable cement-based electrolyte for a cement-based battery by incorporating supplementary cementitious materials (SCMs) and epsom salt to enhance electrical performance. Ionic composition and liquid-phase characterization revealed that SCM and epsomite reduced [Ca<sup>2+</sup>] and [OH<sup>−</sup>] ion concentration while modulating [SO<sub>4</sub><sup>2−</sup>] concentration in the pore solution, depending on the SCM type. Silica fume-based mixes, with lower reactive alumina content, showed increased [SO<sub>4</sub><sup>2−</sup>] and higher ionic strength. The SF5E mix exhibited superior electrical performance, achieving a 56 % higher discharge life. Cyclic voltammetry indicated quasi-reversible behaviour with hybrid capacitive-faradaic characteristics, confirming its suitability for energy storage. The microstructural analysis highlighted the stable C–S–H formation, ensuring mechanical integrity alongside electrical functionality. The findings establish SF5E as the optimal electrolyte, demonstrating a balance between ionic conductivity and structural stability. By linking cement chemistry with battery performance, this work lays the foundation for a scalable, self-sustaining energy storage system for applications in structural health monitoring.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"48 ","pages":"Article 102194"},"PeriodicalIF":5.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance and microstructural evaluation of sustainable self-compacting concrete incorporating eggshell powder and fly ash as environmentally sustainable cement replacements 含蛋壳粉和粉煤灰的可持续自密实混凝土的性能和微观结构评价
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-06 DOI: 10.1016/j.scp.2025.102182
Kalaiselvi Nivedha J , Mainak Mallik , Gokul Priya M , Saurabh Dubey
{"title":"Performance and microstructural evaluation of sustainable self-compacting concrete incorporating eggshell powder and fly ash as environmentally sustainable cement replacements","authors":"Kalaiselvi Nivedha J ,&nbsp;Mainak Mallik ,&nbsp;Gokul Priya M ,&nbsp;Saurabh Dubey","doi":"10.1016/j.scp.2025.102182","DOIUrl":"10.1016/j.scp.2025.102182","url":null,"abstract":"<div><div>In the pursuit of sustainable construction practices, this study evaluates the potential of eggshell powder (ESP) and fly ash as partial replacements for cement in self-compacting concrete (SCC). ESP, rich in calcium carbonate, and fly ash, known for its pozzolanic properties, were used at replacement levels of 5–20 % and 20 %, respectively. Comprehensive experiments assessed the fresh properties (slump flow, V-funnel, L-box, and J-ring), mechanical strength (compressive, split tensile, and flexural) at 7 and 28 days, and durability under acid exposure (HCl and H<sub>2</sub>SO <sub>3</sub>). Microstructural analyses via SEM and EDX confirmed the improved hydration and densification in the optimally dosed mixes. The findings revealed that replacing 10 % of the cement with ESP, along with 20 % fly ash, achieved the best performance, yielding a 14.7 % increase in compressive strength at 28 days compared to the control, enhanced tensile and flexural strengths, and superior acid resistance. However, higher ESP dosages (&gt;10 %) led to strength and durability reduction due to increased porosity and excess unreacted CaCO<sub>3</sub>. The study demonstrates that optimized blends of ESP and fly ash can produce high-performance, eco-efficient SCC, providing a practical route toward circular economy practices and a reduced carbon footprint in concrete construction.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"48 ","pages":"Article 102182"},"PeriodicalIF":5.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Greenness profile assessment using the on-line SPE-LC method to determine cefuroxime in human breast milk 在线SPE-LC法测定人母乳中头孢呋辛的绿色曲线评价
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-02 DOI: 10.1016/j.scp.2025.102191
Sena Caglar-Andac, Pelin Koseoglu-Yilmaz
{"title":"Greenness profile assessment using the on-line SPE-LC method to determine cefuroxime in human breast milk","authors":"Sena Caglar-Andac,&nbsp;Pelin Koseoglu-Yilmaz","doi":"10.1016/j.scp.2025.102191","DOIUrl":"10.1016/j.scp.2025.102191","url":null,"abstract":"<div><div>In this study, a pretreatment-free, fully automated on-line SPE-LC method was developed and validated for the quantification of Cefuroxime (CEF) in human breast milk, offering a reliable tool to monitor potential drug transfer to breastfed infants. CEF, a broad-spectrum β-lactam antibiotic, may reach breast milk at low levels; however, according to LactMed, its excretion into human milk is generally minimal and considered unlikely to cause adverse effects in nursing infants. Nevertheless, monitoring its concentration remains clinically valuable, particularly in sensitive populations such as neonates or preterm infants where immature renal clearance may increase susceptibility. Analytical separation was achieved using a C18 analytical column (150 × 4.6 cm, 5 μm) and a self-packed SPE column with a hydrophilic modified strong anion exchange sorbent (20.0 × 1.0 mm). A gradient elution was executed at 1.0 mL/min using acetonitrile and 10 mM <em>o</em>-phosphoric acid solution as the mobile phase detecting CEF at 276 nm. The developed method, which integrates automation and miniaturization principles of green analytical chemistry, eliminates pretreatment steps, reduces solvent consumption, and minimizes waste generation. The method demonstrated satisfactory analytical performance, with a linear range of 0.31–200.00 μg/mL (r = 0.9989), recovery ≥96.52 %, RSD ≤8.84 %, and LOD/LOQ values of 0.10 and 0.31 μg/mL, respectively. The greenness of the method was evaluated using AGREE (score 0.59) and moGAPI (76 %), confirming its environmentally friendly character by enabling precise, eco-friendly, and high-throughput quantification of cefuroxime in breast milk. This method provides a valuable analytical tool to support lactation safety assessments and pharmacovigilance efforts in breastfeeding mothers.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"47 ","pages":"Article 102191"},"PeriodicalIF":5.8,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144925203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring okra-based biopolymer as a green binder for stabilizing clayey soil 秋葵基生物聚合物作为稳定粘土的绿色粘合剂的探索
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-01 DOI: 10.1016/j.scp.2025.102187
Akanksha , Anil Kumar Sharma
{"title":"Exploring okra-based biopolymer as a green binder for stabilizing clayey soil","authors":"Akanksha ,&nbsp;Anil Kumar Sharma","doi":"10.1016/j.scp.2025.102187","DOIUrl":"10.1016/j.scp.2025.102187","url":null,"abstract":"<div><div>The requirement for sustainable soil stabilization techniques has increased interest in natural and eco-friendly alternatives to conventional soil stabilizers. This study presents the first attempt to utilize okra mucilage solution—a biopolymer derived from Abelmoschus esculentus—for the stabilization of clayey soil. The okra mucilage solution is a safe and environmentally friendly material. Its mucilage, a viscous material high in organic polysaccharides, offers potential for soil stability. The okra mucilage solutions were prepared in three concentrations by weight-to-volume ratios of 1:30 (1 g okra: 30 ml water), 1:20 (1 g okra: 20 ml water), and 1:10 (1 g okra: 10 ml water), respectively and applied to clayey soil to assess its consistency limits, compaction, and unconfined compressive strength (UCS) at different curing periods. The UCS of untreated soil increased from 207.82 kPa to 293.93 kPa, 338.49 kPa, and 380.22 kPa for the 1:30, 1:20, and 1:10 concentrations, respectively, after 28 days of curing. The maximum value of UCS was found at a 90-day curing period for a 1:10 concentration. The treatment further improved the consistency limits and compaction characteristics. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) analyses provided microscopic insights, supplementing the lab testing and helping to estimate the internal mechanism. Analysis of variance (ANOVA) on UCS data yielded significant results, further confirming the significance of the results. Okra mucilage shows strong potential as a sustainable, readily available alternative to conventional soil stabilizers.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"47 ","pages":"Article 102187"},"PeriodicalIF":5.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of high performing UiO-67/BiFeO3 photocatalyst for selective CO2 conversion to methanol: Process optimization by RSM 高性能UiO-67/BiFeO3光催化剂的研制:RSM工艺优化
IF 5.8 2区 化学
Sustainable Chemistry and Pharmacy Pub Date : 2025-09-01 DOI: 10.1016/j.scp.2025.102180
Ali Khatib Juma , Zulkifli Merican Aljunid Merican , Abdurrashid Haruna , Bamidele Victor Ayodele , Afiq Mohd Laziz , Atta Ullah , Hamzah Sakidin
{"title":"Development of high performing UiO-67/BiFeO3 photocatalyst for selective CO2 conversion to methanol: Process optimization by RSM","authors":"Ali Khatib Juma ,&nbsp;Zulkifli Merican Aljunid Merican ,&nbsp;Abdurrashid Haruna ,&nbsp;Bamidele Victor Ayodele ,&nbsp;Afiq Mohd Laziz ,&nbsp;Atta Ullah ,&nbsp;Hamzah Sakidin","doi":"10.1016/j.scp.2025.102180","DOIUrl":"10.1016/j.scp.2025.102180","url":null,"abstract":"<div><div>The continuous rise in atmospheric CO<sub>2</sub> levels due to industrialization has raised pressing environmental concerns, necessitating efficient carbon capture and utilization strategies. Among them, the photocatalytic reduction of CO<sub>2</sub> to methanol offers a sustainable approach that mitigates emissions while producing a valuable solar fuel. Metal-organic frameworks (MOFs) have emerged as promising photocatalysts due to their high surface area, tunable porosity, and dense active sites, though their wide bandgaps limit visible-light activity. In this study, a UiO-67/BiFeO<sub>3</sub> composite photocatalyst was synthesized via a wet chemical method, combining BiFeO<sub>3</sub>'s narrow bandgap with the structural advantages of UiO-67. Photocatalytic tests under visible light showed a significant improvement in methanol production, with the composite achieving 93.99 μmol/g·h after 4 h outperforming pure UiO-67 (31.29 μmol/g·h) and BiFeO<sub>3</sub> (8.01 μmol/g·h). To optimize reaction conditions, Response Surface Methodology (RSM) and Box–Behnken design (BBD) were employed. The resulting model (R<sup>2</sup> = 0.9966) identified an optimal methanol production rate of 95.06 μmol/g·h with a desirability value of 1.000. These findings highlight the synergistic role of BiFeO<sub>3</sub>'s light absorption and UiO-67's CO<sub>2</sub> adsorption, showcasing the potential of RSM in optimizing MOF-based photocatalytic systems for sustainable CO<sub>2</sub> conversion.</div></div>","PeriodicalId":22138,"journal":{"name":"Sustainable Chemistry and Pharmacy","volume":"47 ","pages":"Article 102180"},"PeriodicalIF":5.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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