Sustainability Science最新文献_第8页

Comprehensive Ecotoxicity of the Complex System of Polycyclic Aromatic Hydrocarbon-Contaminated Sites to Wheat (Triticum aestivum L.) During Microbial Remediation 多环芳烃污染位点复合体系对小麦的综合生态毒性研究微生物修复期间

2区环境科学与生态学

Sustainability Science Pub Date : 2025-05-02 DOI: 10.3390/su17094127

Xiaoli Du, Wenqian Sun, Xiaolu Liu, Zhongwen Chi, Huihui Sheng, Fei Liu

{"title":"Comprehensive Ecotoxicity of the Complex System of Polycyclic Aromatic Hydrocarbon-Contaminated Sites to Wheat (Triticum aestivum L.) During Microbial Remediation","authors":"Xiaoli Du, Wenqian Sun, Xiaolu Liu, Zhongwen Chi, Huihui Sheng, Fei Liu","doi":"10.3390/su17094127","DOIUrl":"https://doi.org/10.3390/su17094127","url":null,"abstract":"Microbial remediation is an eco-friendly and cost-effective method for treating organic-contaminated soil, essential for sustainable land use due to its minimal secondary pollution and operational simplicity. However, during the degradation of polycyclic aromatic hydrocarbons (PAHs), the formation of polar or toxic intermediate metabolites can lead to unpredictable ecotoxicological impacts. In this study, we investigated the effects of the microbial remediation of organic-contaminated soils on wheat seedling growth and physiology, and evaluated soil ecotoxicity throughout the remediation process. The results showed that the concentrations of benzo[a]anthracene (BaA) and benzo[a]pyrene (BaP) decreased by 70.4% and 49.9%, respectively, following microbial degradation, with the degradation process following a second-order kinetic model. Despite the reduction in pollutants, soil toxicity increased from days 10 to 20, peaked on day 20, and then gradually decreased, but it remained elevated throughout the remediation process. Increased ecotoxicity inhibited wheat seed germination, seedling growth, and chlorophyll content, induced oxidative stress, and suppressed soil enzyme activity. Gas chromatography–mass spectrometry (GC-MS) analysis identified toxic intermediate metabolites as the primary contributors to enhanced ecotoxicity. Wheat seed germination potential, plant height, root length, and superoxide dismutase (SOD) and catalase (CAT) activity in roots can effectively indicate soil ecotoxicity throughout the microbial remediation process. These parameters facilitate the optimization of remediation strategies to ensure restored soil functionality and long-term ecological sustainability.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 9","pages":"4127-4127"},"PeriodicalIF":0.0,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/9/4127/pdf?version=1746178539","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147918795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable PH3 Purification over MOF-Derived Ce-Doped CuO Materials: Enhanced Performance and Closed-Loop Resource Recovery mof衍生ce掺杂CuO材料的可持续PH3净化：增强性能和闭环资源回收

2区环境科学与生态学

Sustainability Science Pub Date : 2025-05-01 DOI: 10.3390/su17094084

Haoyang Yi, Kai Li, Kai Li, Bo Li, Chi Wang, Kunlin Li, Kunlin Li, Ping Ning

{"title":"Sustainable PH3 Purification over MOF-Derived Ce-Doped CuO Materials: Enhanced Performance and Closed-Loop Resource Recovery","authors":"Haoyang Yi, Kai Li, Kai Li, Bo Li, Chi Wang, Kunlin Li, Kunlin Li, Ping Ning","doi":"10.3390/su17094084","DOIUrl":"https://doi.org/10.3390/su17094084","url":null,"abstract":"To address the limitations of low CuO loading and poor dispersion in conventional supported adsorbents, in this study, MOF (metal–organic framework)-derived CuO with Ce doping (CuxCeyO) was synthesized and used for the adsorption–oxidation of PH3 under low-temperature and low-oxygen conditions. The results demonstrated that Ce doping increased the PH3 capacity of the adsorbent from 75.54 mg·g−1 (MOF-derived CuO) to 226.87 mg·g−1 (Cu1Ce0.2O). The characterization results indicated that Ce doping significantly altered the physicochemical properties of CuO. Specifically, Cu1Ce0.2O exhibited optimal CuO dispersion, the highest adsorbed oxygen concentration, superior redox performance, an increased number of basic sites, and a larger specific surface area and pore volume, all contributing to its improved performance. Analysis of the exhausted adsorbent revealed the formation of Cu3P and phosphoric acid. And the deactivation of the adsorbent can be attributed to the consumption of CuO and the blockage of pore structure. Surprisingly, the exhausted adsorbent demonstrated considerable photocatalytic performance due to the formation of Cu3P, enabling the resource utilization of the waste adsorbent, making it a promising material for the adsorption–oxidation of PH3. This waste-to-resource conversion reduces hazardous solid waste while creating value-added photocatalysts, establishing a sustainable lifecycle from pollutant removal to functional material regeneration.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 9","pages":"4084-4084"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/9/4084/pdf?version=1746077068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147906955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Loofah-Derived Adsorbent Column for Sustainable Purification of Oily Fumes: Synergistic Effect of Filtration and Adsorption 丝瓜络衍生吸附柱对油烟的可持续净化：过滤和吸附的协同作用

2区环境科学与生态学

Sustainability Science Pub Date : 2025-04-30 DOI: 10.3390/su17094079

Jiayi Zhong, Bonian Zhou, Liao Lei, Aimiao Qin, Shengpeng Mo, Xiaobin Zhou, Jianwen Wei, Hongqiang Wang, Yinming Fan, Huan Zhang

{"title":"Loofah-Derived Adsorbent Column for Sustainable Purification of Oily Fumes: Synergistic Effect of Filtration and Adsorption","authors":"Jiayi Zhong, Bonian Zhou, Liao Lei, Aimiao Qin, Shengpeng Mo, Xiaobin Zhou, Jianwen Wei, Hongqiang Wang, Yinming Fan, Huan Zhang","doi":"10.3390/su17094079","DOIUrl":"https://doi.org/10.3390/su17094079","url":null,"abstract":"Loofah is deemed a promising candidate for the purification of oily fumes. Our research utilized H3PO4 for initial activation of loofah (TCS), producing loofahderived carbon (TGSC-0). Subsequently, Fenton’s reagent was utilized for further modification to yield loofah-derived carbon (TGSC-1). TGSC-1 was used in the form of an adsorption column to simultaneously treat multiple pollutants from oily fumes, with surface Fe3+, Fe2+, and H2O2 catalyzing ·OH and ·OOH generation to enhance adsorption of the oils and non-methane hydrocarbon (NMHC). Characterization showed that the specific surface area of TGSC-1 was 427.97 m2/g and pore sizes ranged from 0.50 to 3.50 nm. The rich mesoporous and macroporous structures of TGSC-1 enhanced the capability of carbon layer adsorption. Langmuir adsorption kinetics suggested that adsorption proceeded via monolayer adsorption pathways, while L-τ lines revealed shorter protective effect times for adsorbing PM10 and PM2.5 than for oils and NMHC. The results indicated that TGSC-1 exhibited maximum saturated adsorption capacities of 25.79, 13.02, 9.82, and 15.99 mg/g for oils, NMHC, PM2.5, and PM10, respectively. Increasing resistance of the adsorption column exhibited a notable synergistic effect of filtration and adsorption in treating oily fumes. It combines renewable materials with low-energy processing, delivering eco-economic benefits for sustainable development and application.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 9","pages":"4079-4079"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/9/4079/pdf?version=1746079950","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147916102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Multi-Functional Amorphous Nickel Phosphide Electrocatalytic Reduction of Nitrate for Ammonia Production: Unraveling the Anode-Driven Enhancement Mechanism 多功能非晶磷化镍电催化还原硝酸盐制氨：揭示阳极驱动增强机制

2区环境科学与生态学

Sustainability Science Pub Date : 2025-04-24 DOI: 10.3390/su17093835

Qiufang Yao, Yanping Xiao, Haoqing Wang, Haobin Zhong, Tongtong Wang

{"title":"Multi-Functional Amorphous Nickel Phosphide Electrocatalytic Reduction of Nitrate for Ammonia Production: Unraveling the Anode-Driven Enhancement Mechanism","authors":"Qiufang Yao, Yanping Xiao, Haoqing Wang, Haobin Zhong, Tongtong Wang","doi":"10.3390/su17093835","DOIUrl":"https://doi.org/10.3390/su17093835","url":null,"abstract":"The electrocatalytic reduction of nitrate (ERN) to ammonia offers a promising route to address energy shortages and environmental pollution, but its practical application is hindered by low selectivity due to complex eight-electron transfer pathways and high energy consumption (EC) from the kinetically sluggish oxygen evolution reaction (OER). This study proposes a dual strategy: (1) designing a multi-functional self-supported ANP electrode via vapor deposition to enhance ERN activity and (2) replacing the OER with thermodynamically favorable anodic reactions (urea oxidation reaction (UOR), sodium metabisulfite oxidation reaction (S(IV)OR), sulfite and urea oxidation reaction (S(IV)/UOR)) to reduce EC. The ANP cathode achieved a nitrate removal rate (R%) of 97.7%, ammonia selectivity (SE%) of 91.8%, and Faradaic efficiency (FE) of 97.3% at −1.2 V, with an ammonia yield of 0.0616 mmol h−1 mg−1 and an EC of 8.239 kWh/kg, while in situ-generated atomic hydrogen (*H) was identified as key to improving nitrate removal and selectivity. Replacing the OER with alternative anodic reactions significantly improved system efficiency: the UOR reduced EC by 17.5%, S(IV)OR saved 27.6% energy with 7.1% higher ammonia yield, and a hybrid S(IV)/UOR system achieved a 32.1% lower EC and a 12.6% greater ammonia yield than the OER. These differences stemmed from variations in cell voltage and ammonia production rates. This work provides a viable approach for selective nitrate-to-ammonia conversion and guides the design of energy-efficient electrocatalytic systems for sustainable nitrogen recovery.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 9","pages":"3835-3835"},"PeriodicalIF":0.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/9/3835/pdf?version=1745490000","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147914607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable Remediation of Polyethylene Microplastics via a Magnetite-Activated Electro-Fenton System: Enhancing Persulfate Efficiency for Eco-Friendly Pollution Mitigation 通过磁铁矿活化电fenton系统可持续修复聚乙烯微塑料：提高过硫酸盐效率，实现生态友好的污染缓解

2区环境科学与生态学

Sustainability Science Pub Date : 2025-04-15 DOI: 10.3390/su17083559

Weimin Gao, Tian Tian, Xiangju Cheng, Dantong Zhu, Lirong Yuan

{"title":"Sustainable Remediation of Polyethylene Microplastics via a Magnetite-Activated Electro-Fenton System: Enhancing Persulfate Efficiency for Eco-Friendly Pollution Mitigation","authors":"Weimin Gao, Tian Tian, Xiangju Cheng, Dantong Zhu, Lirong Yuan","doi":"10.3390/su17083559","DOIUrl":"https://doi.org/10.3390/su17083559","url":null,"abstract":"Polyethylene microplastics (PE MPs) pose a severe threat to aquatic ecosystems and human health, demanding urgent, sustainable remediation strategies. While the electro-Fenton process is widely used for treating refractory pollutants in wastewater, its standalone application remains inadequate for PE MPs due to their stable chemical structure and complex molecular chains. This study introduces a green and sustainable magnetite-activated persulfate electro-Fenton (Mt-PS-EF) system designed to address these limitations while aligning with circular-economy principles. By synergizing Fe₃O₄ catalysis, persulfate activation, and electrochemical processes, the Mt-PS-EF system achieves efficient PE MP degradation through hydroxyl (·OH) and sulfate (SO₄·⁻) radical-driven oxidation. Under optimized conditions (60 mg/L PE, 40 mM persulfate, 150 mg Fe3O₄, 20 h treatment), a 90.6% degradation rate was attained, with PE MPs undergoing chain scission, surface erosion, and release of low-molecular-weight organics. Crucially, the magnetic property of magnetite facilitated the recovery and reuse of the catalyst, significantly reducing material costs and minimizing waste generation. By integrating catalytic efficiency with resource recovery, this work advances scalable, eco-friendly solutions for microplastic pollution mitigation, directly contributing to UN Sustainable Development Goals (SDGs) 6 (Clean Water) and 14 (Life Below Water). The findings highlight the potential of hybrid electro-Fenton technologies in achieving sustainable wastewater treatment and plastic waste management.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 8","pages":"3559-3559"},"PeriodicalIF":0.0,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/8/3559/pdf?version=1744787211","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147901207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Biochar-Enhanced Nitrogen Removal in SBBR Under PFOA Stress: The Role of Quorum Sensing PFOA胁迫下SBBR生物炭强化脱氮：群体感应的作用

2区环境科学与生态学

Sustainability Science Pub Date : 2025-04-09 DOI: 10.3390/su17083359

Zhiqi Lu, Mengzhe Zhao, Xianglong He, Hongjing Li

{"title":"Biochar-Enhanced Nitrogen Removal in SBBR Under PFOA Stress: The Role of Quorum Sensing","authors":"Zhiqi Lu, Mengzhe Zhao, Xianglong He, Hongjing Li","doi":"10.3390/su17083359","DOIUrl":"https://doi.org/10.3390/su17083359","url":null,"abstract":"Perfluorooctanoic acid (PFOA), an emerging organic contaminant frequently detected in wastewater, inhibits biological nitrogen removal processes, posing challenges to sustainable wastewater treatment. Mitigating the adverse effects of PFOA while enhancing total nitrogen (TN) removal efficiency remains a critical concern. In this study, three sequencing batch biofilm reactors (SBBRs) were operated under low-oxygen conditions with a C/N ratio of 4.0 to investigate enhanced nitrogen removal under PFOA stress using biochar. Compared to the 78.1% TN removal efficiency in the control reactor (SBBR-0) with an initial TN concentration of 50 mg/L, the addition of PFOA decreased TN removal by 2.3% in SBBR-1, while the combined addition of PFOA and biochar increased it by 3.2% in SBBR-2. Biochar, acting through its electron-donating surface functional groups, mitigated PFOA-induced reactive oxygen species accumulation and increased adenosine triphosphate production. These effects promoted the generation of quorum sensing (QS) signaling molecules, facilitating microbial communication and cooperation. Consequently, the relative abundance of key nitrogen-removing bacteria, such as Thauera (from 7.90% to 9.92%) and Nitrosomonas (from 1.42% to 5.75%), increased, leading to enhanced nitrogen removal efficiency. A metagenomic analysis revealed that biochar significantly reduced the production of antibiotic resistance genes without promoting their dissemination. These findings provide new insights into mitigating the negative effects of PFOA and improving TN removal through QS promotion, offering a potential approach for enhancing the sustainability of wastewater treatment systems.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 8","pages":"3359-3359"},"PeriodicalIF":0.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/8/3359/pdf?version=1744209155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147905499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Integrated Risk Assessment of Floods and Landslides in Kohistan, Pakistan 巴基斯坦科伊斯坦洪水和山体滑坡综合风险评估

2区环境科学与生态学

Sustainability Science Pub Date : 2025-04-09 DOI: 10.3390/su17083331

Taliah Sajid, Sakina Khuzema Maimoon, Muhammad Waseem, Shiraz Ahmed, Muhammad Arsalan Khan, Jens Tränckner, Ghufran Ahmed Pasha, Hossein Hamidifar, Charalampos Skoulikaris

{"title":"Integrated Risk Assessment of Floods and Landslides in Kohistan, Pakistan","authors":"Taliah Sajid, Sakina Khuzema Maimoon, Muhammad Waseem, Shiraz Ahmed, Muhammad Arsalan Khan, Jens Tränckner, Ghufran Ahmed Pasha, Hossein Hamidifar, Charalampos Skoulikaris","doi":"10.3390/su17083331","DOIUrl":"https://doi.org/10.3390/su17083331","url":null,"abstract":"Climate change and global warming have increased the frequency and intensity of natural hazards such as floods, landslides, and avalanches. These hazards not only have significant individual impacts but are also interconnected, often amplifying their destructive effects. Therefore, it is crucial to manage their consequences and ensure that communities and infrastructure are resilient enough to withstand these challenges. Given the limited research assessing the collective impact of natural hazards, particularly in Pakistan, this study investigates the effects of floods and landslides in the Kohistan District of northern Pakistan, an area which is highly vulnerable to such hazards yet minimally studied. Machine learning techniques, including the Analytical Hierarchy Process (AHP) and weighted overlay, along with geographic information systems (GISs) and remote sensing (RS), were employed to analyze the causative factors of these hazards. The resulting flood risk and landslide risk maps were then superimposed to produce an integrated dual-hazard risk assessment. The research findings serve as a foundation for policy-making, offering strategies to reduce risks for all stakeholders, implement adaptive measures for communities, and ensure that future developments are both resilient and sustainable.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 8","pages":"3331-3331"},"PeriodicalIF":0.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/8/3331/pdf?version=1744181594","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147885441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Elevator Selection Methodology for Existing Residential Buildings Oriented Toward Living Quality Improvement 面向生活质量改善的既有住宅电梯选择方法

2区环境科学与生态学

Sustainability Science Pub Date : 2025-04-04 DOI: 10.3390/su17073225

Dongxiao Chen, Chunqing Li, Ri Jin Zezheng Gong, Enlin Jin

{"title":"Elevator Selection Methodology for Existing Residential Buildings Oriented Toward Living Quality Improvement","authors":"Dongxiao Chen, Chunqing Li, Ri Jin Zezheng Gong, Enlin Jin","doi":"10.3390/su17073225","DOIUrl":"https://doi.org/10.3390/su17073225","url":null,"abstract":"With the intensification of aging populations and economic development, installing elevators in existing residential buildings has become crucial for achieving SDG 11 (Sustainable Cities and Communities). While elevator retrofits improve accessibility, they may also compromise living quality through obstructed ventilation, reduced daylighting, visual interference, and noise pollution. Despite provincial guidelines in China specifying elevator types for retrofitting, the lack of clear selection criteria complicates implementation. This study addresses the challenge of scientifically selecting elevator types that balance accessibility improvements with minimal impact on residential environments. Focusing on 50 operational elevator retrofits in eight Beijing communities employing eight half-landing elevator models from the Beijing Multi-story Residential Elevator Retrofit Guidelines, we establish a comprehensive evaluation framework integrating objective measurements (indoor ventilation, noise, daylighting, and external visibility) and subjective resident assessments. Taking Xicheng District’s Yutaoyuan Community as a case study, this research identifies the optimal elevator configuration through a multi-criteria analysis. The proposed methodology offers two key contributions: (1) a practical elevator selection system providing technical and theoretical support for nationwide retrofitting projects, and (2) a quantifiable assessment tool aligning with the 2030 Sustainable Development Agenda for urban renewal objectives.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 7","pages":"3225-3225"},"PeriodicalIF":0.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/7/3225/pdf?version=1744025482","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147913724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Efficient Adsorption of Arsenic from Smelting Wastewater by CoMn-MOF-74 Bimetallic Composites common - mof -74双金属复合材料对冶炼废水中砷的高效吸附

2区环境科学与生态学

Sustainability Science Pub Date : 2025-03-30 DOI: 10.3390/su17073060

Junwei Feng, Gang Zhi, Xianjin Qi, Mengmeng Geng

{"title":"Efficient Adsorption of Arsenic from Smelting Wastewater by CoMn-MOF-74 Bimetallic Composites","authors":"Junwei Feng, Gang Zhi, Xianjin Qi, Mengmeng Geng","doi":"10.3390/su17073060","DOIUrl":"https://doi.org/10.3390/su17073060","url":null,"abstract":"Removing arsenic from industrial wastewater remains a crucial task. To protect public health and safety and address environmental pollution, there is an urgent need for a material that can efficiently remove arsenic from wastewater. In this study, a simple and highly efficient adsorbent, namely, a Co/Mn bimetallic-based organic framework (CoMn-MOF-74) adsorbent, was prepared by a hydrothermal synthesis method. Experimental results demonstrate that CoMn-MOF-74 exhibits excellent adsorption capacity for arsenic ions in wastewater. It was found that the optimal Co/Mn molar ratio of the adsorbent is 1:1. The CoMn-MOF-74 adsorbent compensates for the deficiencies in the adsorption performance of Co-MOF-74 and Mn-MOF-74, increasing the adsorption rate and the highest adsorption capacity. The maximum adsorption rate of CoMn-MOF-74 is 93.4%, and the highest adsorption capacity is 531 mg/g. Fitting CoMn-MOF-74 according to two categories of models, specifically, the adsorption isotherm and adsorption kinetics models, indicated that CoMn-MOF-74 adheres to the Langmuir model and pseudo-second-order kinetic model. The adsorption process is mainly chemical adsorption and monolayer adsorption. Analysis by XPS revealed that metal–oxygen groups and hydroxyl groups play important roles in the adsorption process. In conclusion, the CoMn-MOF-74 adsorbent shows excellent prospects in the field of arsenic adsorption from wastewater and is a promising arsenic-removing adsorbent.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 7","pages":"3060-3060"},"PeriodicalIF":0.0,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/7/3060/pdf?version=1743324959","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Regulation of Thin-Layered g-C3N4 for Efficient Persulfate Photocatalysis of Ibuprofen Contaminated Groundwater 薄层g-C3N4对布洛芬污染地下水的高效光催化调控

2区环境科学与生态学

Sustainability Science Pub Date : 2025-03-22 DOI: 10.3390/su17072831

Yunchuan Yang, Jie Li, Yongping Li, Yanbin Huang, Zuqiang Huang, Gangan Yan, Siran Liang, Yining Zhang, Ke Zeng, Junjie Qi, Shikang Xiong, Jun Liu, How Yong Ng

{"title":"Regulation of Thin-Layered g-C3N4 for Efficient Persulfate Photocatalysis of Ibuprofen Contaminated Groundwater","authors":"Yunchuan Yang, Jie Li, Yongping Li, Yanbin Huang, Zuqiang Huang, Gangan Yan, Siran Liang, Yining Zhang, Ke Zeng, Junjie Qi, Shikang Xiong, Jun Liu, How Yong Ng","doi":"10.3390/su17072831","DOIUrl":"https://doi.org/10.3390/su17072831","url":null,"abstract":"The rapid and effective removal of pharmaceuticals and personal care products (PPCPs) from groundwater is challenging. In this paper, porous cyano group-rich g-C3N4 catalysts were prepared by urea (U) and a KOH-assisted thermal polymerization strategy. The thickness, active sites, and pores of g-C3N4 were successfully modulated by urea and KOH-assisted thermal polymerization. In addition, the charge separation efficiency of g-C3N4 was effectively improved by the above methods. We combine the g-C3N4 photocatalyst with peroxymonosulfate (PMS) to achieve the efficient degradation performance of ibuprofen. Meanwhile, we also explored the reaction mechanism of g-C3N4 in the photocatalytically coupled persulfate system, which illustrated the active roles of singlet oxygen and holes in the system in degrading pollutants. Our work demonstrates that the photocatalytically coupled persulfate system is an advanced technology necessary for the deep treatment of PPCPs in groundwater and suggests a feasible strategy for catalyst modulation.","PeriodicalId":49457,"journal":{"name":"Sustainability Science","volume":"17 7","pages":"2831-2831"},"PeriodicalIF":0.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2071-1050/17/7/2831/pdf?version=1742637360","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147896504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1