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Journal of environmental Sciences 2025年第3期149卷 188-199页

作者： Xiaobiao Zhu Chunhong Xu Jie Mao Yizhen Zhang Yaohui Bai Department of environmental Science and engineering College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China Research Center for Eco-environmental Sciences Chinese Academy of SciencesBeijing 100085China college of Safety and environmental engineering Shandong University of Science and TechnologyQingdao 266590China

Photocatalytic disinfection is an eco-friendly strategy for countering bacterial pollution in aquatic *** strategies have been devised to facilitate the generation of reactive oxygen species(ROS)within photocatalysts,ultimately leading to the eradication of ***,the significance of the physical morphology of photocatalysts in the context of sterilization is frequently obscured,and the progress in the development of physical-chemical synergistic sterilization photocatalysts has been relatively ***,graphitic carbon nitride(g-C_(3)N_(4))is chemically protonated to expose more sharp *** fluorescence and EIS results indicate that the protonation can accelerate photogenerated carrier separation and enhance ROS ***,the sharp edges on the protonated g-C_(3)N_(4)facilitate the physical disruption of cell walls for further promoting oxidative *** C_(3)N_(4)demonstrated superior bactericidal performance than that of pristine g-C_(3)N_(4),effectively eliminating Escherichia coli within 40 minutes under *** work highlights the significance of incorporating physical and chemical synergies in photocatalyst design to enhance the disinfection efficiency of photocatalysis.

关键词： Protonated Photocatalytic Sterilization Synergistic Oxidative Damage Physical Destruction

Microplastics enhance the adsorption capacity of zinc oxide nanoparticles:Interactive mechanisms and influence factors

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Journal of environmental Sciences 2025年第1期147卷 665-676页

作者： Weiping Xiong Min Hu Siying He Yuhang Ye Yinping Xiang Haihao Peng Zhaomeng Chen Zhengyong Xu Honglin Zhang Weixiang Li Shudian Peng college of environmental Science and engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control(Hunan University)Ministry of EducationChangsha 410082China Hunan Boke environmental engineering Co.Ltd. Hengyang 421099China college of environmental protection and Safety engineering University of South ChinaHengyang 421001China Hunan Modern environmental Technology Co.Ltd. Changsha 410004China

Microplastics(MPs)are of particular concern due to their ubiquitous occurrence and propensity to interact and concentrate various waterborne contaminants from aqueous *** on the interaction and joint toxicity of MPs on engineered nanoparticles(ENPs)are exhaustive,but limited research on the effect of MPs on the properties of ENPs in multisolute ***,the effect of MPs on adsorption ability of ENPs to antibiotics was investigated for the first *** results demonstrated that MPs enhanced the adsorption affinity of ENPs to antibiotics and MPs before and after aging showed different effects on *** polyamide prevented aggregation of ZnONPs by introducing negative charges,whereas virgin polyamide affected ZnONPs with the help of electrostatic ***-IR and XPS analyses were used to probe the physicochemical interactions between ENPs and *** results showed no chemical interaction and electrostatic interactionwas the dominant force between ***,the adsorption rate of antibiotics positively correlated with pH and humic acid but exhibited a negative correlation with ionic *** study highlights that ENPs are highly capable of accumulating and transporting antibiotics in the presence of MPs,which could result in a widespread distribution of antibiotics and an expansion of their environmental risks and toxic effects on *** also improves our understanding of the mutual interaction of various co-existing contaminants in aqueous environments.

关键词： Microplastics Engineered nanoparticles Adsorption Tetracycline

Oxygen atmosphere enhances ball milling remediation of petroleum-contaminated soil and reuse as adsorptive/catalytic materials for wastewater treatment

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Journal of environmental Sciences 2025年第1期147卷 652-664页

作者： Pingting Gao Simin Song Mingxin Wang Meng Yao Jinjuan Xue School of environmental Science and engineering Changzhou UniversityChangzhou 213164China Jiangsu Petrochemical Safety and environmental protection engineering Research Center Changzhou 213164China

Ball milling is an environmentally friendly technology for the remediation of petroleumcontaminated soil(PCS),but the cleanup of organic pollutants requires a long time,and the post-remediation soil needs an economically viable disposal/reuse strategy due to its vast *** present paper develops a ball milling process under oxygen atmosphere to enhance PCS remediation and reuse the obtained carbonized soil(BCS-O)as wastewater treatment *** total petroleum hydrocarbon removal rates by ball milling under vacuum,air,and oxygen atmospheres are 39.83%,55.21%,and 93.84%,*** Langmuir and pseudo second-order models satisfactorily describe the adsorption capacity and behavior of BCS-O for transition *** Cu^(2+),Ni^(2+),and Mn^(2+)adsorbed onto BCS-O were mainly bound to metal carbonates and metal ***,BCS-O can effectively activate persulfate(PDS)oxidation to degrade aniline,while BCS-O loaded with transition metal(BCS-O-Me)shows better activation efficiency and ***-O and BCS-O-Me activated PDS oxidation systems are dominated by^(1)O_(2)oxidation and electron *** main active sites are oxygen-containing functional groups,vacancy defects,and graphitized *** oxygen-containing functional groups and vacancy defects primarily activate PDS to generate^(1)O_(2)and attack *** carbon promotes aniline degradation by accelerating electron *** paper develops an innovative strategy to simultaneously realize efficient remediation of PCS and sequential reuse of the postremediation soil.

关键词： Petroleum-contaminated soil Ball milling Oxygen atmosphere Pyrolysis Resource utilization

Nitrogen-cycling processes under long-term compound heavy metal(loids)pressure around a gold mine:Stimulation of nitrite reduction

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Journal of environmental Sciences 2025年第1期147卷 571-581页

作者： Xuesong Hu Xiaoxia Liu Shuo Zhang Caihong Yu School of chemical&environmental engineering China University of Mining and Technology(Beijing)Beijing 100083China Beijing Cultivated Land Construction and protection Center Beijing 100020China

Mining and tailings deposition can cause serious heavy metal(loids)pollution to the surrounding soil *** microorganisms adapt their metabolism to such conditions,driving alterations in soil *** study aims to elucidate the response patterns of nitrogen-cycling microorganisms under long-term heavy metal(loids)*** results showed that the diversity and abundance of nitrogen-cyclingmicroorganisms showed negative feedback to heavy metal(loids)*** microorganisms were shown to be the dominant microorganisms with over 60%of relative abundance and a complex community structure including 27 ***,the key bacterial species in the denitrification process were calculated using a random forest model,where the top three key species(Pseudomonas stutzei,Sphingobium japonicum and Leifsonia rubra)were found to play a prominent role in nitrite *** gene analysis and qPCR revealed that nirK,which is involved in nitrite reduction,significantly accumulated in the most metal-rich soil with the increase of absolute abundance of 63.86%.The experimental results confirmed that the activity of nitrite reductase(Nir)encoded by nirK in the soil was increased at high concentrations of heavy metal(loids).Partial least squares-path model identified three potential modes of nitrite reduction processes being stimulated by heavy metal(loids),the most prominent of which contributed to enhanced nirK abundance and soil Nir activity through positive stimulation of key *** results provide new insights and preliminary evidence on the stimulation of nitrite reduction processes by heavy metal(loids).

关键词： N cycle Nitrite reduction Nitrite reductase Metagenome Key species

Electrochemical removal of nitrate in high-salt wastewater with low-cost iron electrode modified by phosphate

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Journal of environmental Sciences 2025年第2期148卷 38-45页

作者： Fengjiao Quan Guangming Zhan Pengfei Xu Xiaolan Chen Wenjuan Shen Falong Jia Yun He Jianfen Li college of chemical and environmental engineering Wuhan Polytechnic UniversityWuhan 430023China college of Chemistry Central China Normal UniversityWuhan 430079China School of environmental Science and engineering Shanghai Jiao Tong UniversityShanghai 200240China

Nitrate(NO3-)is a widespread pollutant in high-salt wastewater and causes serious harm to human *** electrochemical removal of nitrate has been demonstrated to be a promising treatment method,the development of low-cost electro-catalysts is still *** this work,a phosphate modified iron(P-Fe)cathode was prepared for electrochemical removal of nitrate in high-salt *** phosphate modification greatly improved the activity of iron,and the removal rate of nitrate on P-Fe was three times higher than that on Fe *** experiments and density functional theory(DFT)calculations demonstrated that the modification of phosphoric acid improved the stability and the activity of the zero-valent iron electrode effectively for *** nitrate was firstly electrochemically reduced to ammonium,and then reacted with the anodic generated hypochlorite to *** this study,a strategy was developed to improve the activity and stability of metal electrode for NO_(3)^(-)removal,which opened up a new field for the efficient reduction of NO3-removal by metal electrode materials.

关键词： Nitrate removal High-salt wastewater Electrocatalysis Phosphate modified Iron

Classification and progress of extraction technologies for nonferrous metal resources

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Science China Chemistry 2025年第2期68卷 458-474页

作者： Fangqin Cheng Na Zhou Nazeer Muhammad Nouman Li Cui Caixia Yin Institute of Resources and environmental engineering State Environmental Protection Key Laboratory of Efficient Utilization of Coal Waste ResourcesShanxi UniversityTaiyuan 030006China Key Laboratory of chemical Biology and Molecular engineering of Ministry of Education Institute of Molecular ScienceShanxi UniversityTaiyuan 030006China

In recent years,the demand for strategic metal resources,essential for scientific and technological progress and industrial development,has *** a stable supply of these metals is critical to national security and the well-being of the *** global industrialization accelerates,the daily demand for nonferrous metals continues to ***,extracting and recovering strategic metals from low-grade raw materials,such as solid waste,has become crucial for maintaining their supply and economic ***,the extraction process is fraught with challenges,including mineral phase stability and complex *** review focuses on key strategic metals such as lithium,aluminum,gallium,and *** introduces and examines various methods for extracting nonferrous metals from different raw materials,including traditional mining technologies applied to low-grade solid *** also outlines future development opportunities and challenges in this field.

关键词： nonferrous metal extraction classification and progress

Efficient remediation of different concentrations of Cr-contaminated soils by nano zero-valent iron modified with carboxymethyl cellulose and biochar

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Journal of environmental Sciences 2025年第1期147卷 474-486页

作者： Lihong Xie Qiyan Ma Qingjun Chen Yiyang Liu Pengfei Guo Jinlan Zhang Guilan Duan Aijun Lin Tingting Zhang Shangyi Li Department of environmental Science and engineering College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China China National Petroleum and chemical Planning Institute Beijing 100013China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Nano zero-valent iron(nZVI)is widely used in soil remediation due to its high ***,the easy agglomeration,poor antioxidant ability and passivation layer of Fe-Cr coprecipitates of nZVI have limited its application scale in Cr-contaminated soil remediation,especially in high concentration of Cr-contaminated ***,we found that the carboxymethyl cellulose on nZVI particles could increase the zeta potential value of soil and change the phase of *** with the presence of biochar,97.0%and 96.6%Cr immobilization efficiency through CMC-nZVI/BC were respectively achieved in high and low concentrations of Cr-contaminated soils after 90-days *** addition,the immobilization efficiency of Cr(VI)only decreased by 5.1%through CMC-nZVI/BC treatment after 10 weeks aging in air,attributing to the strong antioxidation *** for the surrounding Crcontaminated groundwater,the Cr(VI)removal capacity of CMC-nZVI/BC was evaluated under different reaction conditions through column experiments and COMSOL ***-nZVI/BC could efficiently remove 85%of Cr(VI)in about 400 hr when the initial Cr(VI)concentration was 40 mg/L and the flow rate was 0.5 mL/*** study demonstrates that uniformly dispersed CMC-nZVI/BC has an excellent remediation effect on different concentrations of Cr-contaminated soils.

关键词： Carboxymethyl cellulose Nanoscale zero-valent iron Biochar Cr-contaminated soils

High potential in synergizing the reduction of dissolved organic carbon concentration and carbon dioxide emissions for submerged-vegetationcovered river networks

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Journal of environmental Sciences 2025年第5期151卷 298-309页

作者： Qingqian Li Ruixia Liu Zhangmu Jing Yanjie Wei Shengqiang Tu Huibin Yu Hongjie Gao Peng Yuan State Key Laboratory of environmental Criteria and Risk Assessment Chinese Research Academy of Environmental ScienceBeijing 100012China State environmental protection Key Laboratory of Estuarine and Coastal Environment Chinese Research Academy of Environmental ScienceBeijing 100012China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China college of Municipal and environmental engineering Shenyang Jianzhu UniversityShenyang 110168China

Various technologies and projects have been explored and developed for the synergetic control of environmental pollution and carbon emissions in aquatic *** submerged vegetation in shallow waters was also expected to achieve this ***,the magnitude and mechanism of carbon dioxide(CO_(2))emission affected by submerged vegetation is not clear enough in complex aquatic *** study investigated the influences of submerged plants on CO_(2)emission,ecosystem metabolism features,and microbial community traits based on observations in river networks on the Changjiang River *** results showed that CO_(2)emission from planted waters accounted for 73%of unplanted ***,planted waters had higher dissolved organic carbon removal capacity in overlying water and higher potential of carbon sequestration in sediment at the same *** distinctions between the two habitats were attributed to(1)improved CO_(2)and bicarbonate consumption in water columns via enhancing photosynthesis and(2)inhibited CO_(2)production by reconstructing the benthic microbial *** eco-advantages were found in planted sediments,such as a high potential of methane oxidation and xenobiotics biodegradation and a low risk of becoming black and *** brief,submerged vegetation is beneficial in promoting pollution removal and carbon retention *** study advances our understanding of the feedback between aquatic metabolism and CO_(2)emission.

关键词： Mitigated CO_(2)emission Submerged vegetation Paired O_(2)-CO_(2)departure Carbon uptake velocity Microbial metabolism pathways The Changjiang River

Upcycling of monomers derived from waste polyester plastics via electrocatalysis

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Journal of Energy Chemistry 2025年第2期101卷 535-561页

作者： Haoye Wang Richard Lee Smith Jr Xinhua Qi college of environmental Science and engineering Nankai University Graduate School of environmental Studies Tohoku University

Electrocatalysis offers efficient and targeted conversion of monomers derived from waste polyester plastics to chemical products under ambient temperature and pressure *** review provides analysis of research on electrochemical upgrading of monomers derived from waste polyester plastics published from2021 to *** for assessing upgrading of waste polyester plastics include alkaline hydrolysis pretreatment,indices of electrochemical reaction process(activity,stability,and techno-economic a nalysis),separation,and product *** of depolymerization monomers and their value-added products are summarized along with electrocatalytic mechanisms and reaction ***,cathode coupled reactions offer significant value for anodic waste plastic oxidation during electrolysis *** of bifunctional electrocatalysts can reduce the cost of coupled systems and complexity of the *** and recycling of waste plastic monomers using electrocatalytic technology should undergo downstream processing to form high-value products containing C-N and C-S derived functional groups obtained from depolymerized monomers,Electrochemical conversion and upgrading of monomers derived from waste polyester plastics can contribute to industrialization and global economies and help to realize environmental sustainability.

关键词： Coupling reaction Electrocatalysis Monomer Upgrade recycling Value-added products Waste plastics

Atomically precise M-N-C electrocatalysts for oxygen reduction:Effects of inter-site distance,metal-metal interaction,coordination environment,and spin states

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Journal of Energy Chemistry 2025年第2期101卷 132-155页

作者： Junfeng Huang Saira Ajmal Anuj Kumar Jianwen Guo Mohammed Mujahid Alam Abdullah G.Al-Sehemi Ghulam Yasin School of Mechanical engineering Dongguan University of Technology Nano-Technology Research Laboratory Department of Chemistry GLA University Department of Chemistry College of Science King Khalid University School of environmental Science and engineering Tianjin University State Key Laboratory of chemical Resource engineering College of Materials Science and Engineering Beijing University of Chemical Technology

Inspired by molecular catalysts,researchers developed atomically precise nitrogen-coordinated single or dual metal sites imbedded in graphitized carbon（M-N-C） to fully utilize metallic sites for *** catalysts performed remarkably well in the electrocatalytic oxygen reduction reaction（ORR） due to their distinct coordination and electrical structures,Nonetheless,their maximum efficacy in practical applications has yet to be *** agenda identifies tailoring the coordination environment,spin states,intersite distance,and metal-metal interaction as innovative approaches to regulate the ORR performance of these ***,it is necessary to undertake a precise assessment of these methodologies and the knowledge obtained to be implemented in the design of future M-N-C catalysts for ***,this review aims to analyze recent progress in M-N-C ORR catalysts,emphasizing their innovative engineering with aspects such as alteration in intersite distance,metal-metal interaction,coordination environment,and spin ***,we critically discuss how to logically monitor the atomic structure,local coordination,spin,and electronic states of M-N-C catalysts to modulate their ORR *** have also highlighted the challenges associated with M-N-C catalysts and proposed suggestions for their future design and fabrication.

关键词： Activity descriptors Electrocatalysis M-N-C electrocatalysts ORR Spin states