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A bio-inspired PDA@MoS2 electrode with high conductivity and excellent antibacterial properties for selective and efficient uranium recovery via capacitive deionization

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Chemical Engineering Journal 2025年 514卷

作者： Zhang, Shuang Deng, Sheng Bo, Tao Li, Yuanli Zhao, Jiayin Wang, Yingcai Jiang, Hao Li, Xiaoyan Liu, Yuhui National Key Laboratory of Uranium Resources Exploration-Mining and Nuclear Remote Sensing East China University of Technology Nanchang330013 China Zhejiang Key Laboratory of Data-Driven High-Safety Energy Materials and Applications Ningbo Key Laboratory of Special Energy Materials and Chemistry Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing100012 China Innovation Center of Nuclear Environmental Safety Technology Southwest University of Science and Technology Mianyang621010 China

Capacitive deionization (CDI) has been identified as a promising method for uranium recovery due to its efficiency and rapidity. Nevertheless, challenges with electrode materials, including low conductivity, poor selectivity and antibacterial properties, remain to be addressed. This study presents a novel biomimetic electrode material, PDA@MoS2, designed for efficient uranium recovery through CDI. Inspired by natural adhesion mechanisms, the integration of PDA with MoS2 significantly enhances charge transportation, improves uranium selectivity, and imparts intrinsic antibacterial properties. CDI experiments revealed that PDA@MoS2-4 achieved an impressive 81.0 % uranium removal rate at 1.20 V and pH 5.0, significantly outperforming standalone MoS2 Density functional theory (DFT) calculations provided insights into the enhanced electrosorption and reduction mechanisms driving this performance. Beyond efficiency, PDA@MoS2 exhibited nearly 99.99 % antibacterial activity against Escherichia coli and Staphylococcus aureus, ensuring operational stability over an extended period. Remarkably, the material maintained consistent uranium extraction from radioactive ore leachates across 145.0 days. These findings position PDA@MoS2 as a sustainable, efficient, and environmentally friendly solution for uranium recovery, offering a transformative technology for environmental remediation and a reliable nuclear fuel supply. © 2025 Elsevier B.V.

关键词： Layered semiconductors

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Surface catalytic degradation of ciprofloxacin by ferrihydrite sulfidation under ambient conditions

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environmental pollution 2025年 371卷 125945页

作者： Chen, Xiru Bai, Lihua Li, Hongjian Wang, Xinhao Wang, Chao Fang, Yanfen Gu, Cheng State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China Key Laboratory of Environmental Remediation and Ecological Health Ministry of Industry and Information·Technology Jiangsu Province Ecology and Environment Protection Engineering Research Center of Groundwater Pollution Prevention and Control Jiangsu Environmental Engineering Technology Co. Ltd. Nanjing210019 China College of Materials and Chemical Engineering China Three Gorges University Hubei Yichang443002 China

Dissolved sulfide (S(-II)) is abundant in sediments and capable of initiating the sulfidation reactions of iron-bearing minerals, in which the reaction mechanisms have been well documented. However, the impact of the S(-II)/Fe concentration ratio on reactive oxygen species (ROS) formation and the fate of co-existing contaminants upon iron-bearing minerals sulfidation under ambient conditions remains inadequately explored. Herein, the transformation of ciprofloxacin (CIP) by ferrihydrite sulfidation under ambient conditions was systematically investigated. Our findings indicated that the rate of CIP degradation initially increased with rising S(-II)/Fe concentration ratios, but subsequently decreased as the ratio continued to elevate. Evidence from electron paramagnetic resonance, molecular probing and quenching experiments revealed that the superoxide anion radical (O2•-), primarily produced from the reaction between O2 and surface-bound Fe(II), was the dominant contributor to the accelerated transformation of CIP. Upon being attacked by ROS, CIP underwent degradation via carboxyl substitution, defluorination, hydroxylation, piperazine ring ketonization and piperazine ring cleavage. Additionally, common water quality factors, i.e., pH, natural organic matter (NOM) and inorganic anions could also significantly influence the degradation processes of CIP during ferrihydrite sulfidation under ambient conditions. This research offers valuable insights into the significant function of mineral sulfidation in facilitating the formation and reactivity of ROS, which sheds light on enhanced elimination of organic contaminants in sediments. © 2025 Elsevier Ltd

关键词： Reactive oxygen species

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Increased dependence on mycorrhizal fungi for nutrient acquisition under carbon limitation by tree girdling

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Plant Diversity 2025年第3期47卷 466-478页

作者： Chen, Jing Cao, Jingjing Guo, Binglin Han, Meixu Feng, Zhipei Tang, Jinqi Mo, Xiaohan Wang, Junjian Yang, Qingpei Pei, Yuxin Kuzyakov, Yakov Ding, Junxiang Makita, Naoki Yang, Xitian Zhang, Haiyang Zhao, Yong Kong, Deliang College of Forestry Henan Agricultural University Zhengzhou 450002 China College of Horticulture China Agricultural University Beijing 100193 China School of Urban Planning and Design Peking University Shenzhen Graduate School Peking University Shenzhen 518055 China State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen 518055 China Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen 518055 China Department of Soil Science of Temperate Ecosystem University of Göttingen Göttingen 37077 Germany Peoples Friendship University of Russia (RUDN University) Moscow 117198 Russian Federation College of Ecology and Environment Zhengzhou University Zhengzhou 450001 China Faculty of Science Shinshu University 3-1-1 Asahi Nagano Matsumoto 390-8621 Japan Hawkesbury Institute for the Environment Western Sydney University Penrith 2751 NSW Australia College of Life Science Hebei University Baoding 071002 China

Nutrient acquisition through symbiotic ectomycorrhizal fungi is carbon (C) costly but fundamental for plant growth, community, and ecosystem functioning. Here, we examined the functions of roots and mycorrhiza with respect to nutrient uptake after artificially inducing C limitation-seven months after girdling of an ectomycorrhizal tree, Pinus taeda. Root physiological activity (measured as root nitrogen content and root exudation) declined after girdling and was accompanied with 110% and 340% increases in mycorrhizal colonization and extramatrical hyphal length, respectively. Fungi colonizing roots switched to a community characterized by higher C efficiency (lower C cost) of nutrient acquisition (CENA, the amount of nutrient acquisition per unit C cost) and lower network complexity, indicating a tradeoff between CENA and stability of the fungal community. Root transcriptome analysis suggested a shift in metabolic pathways from a tricarboxylic acid cycle decomposition of carbohydrate to lipid biosynthesis to maintain closer associations with mycorrhiza for nutrient cycling after the girdling. By integrating multi-level evidence, including root transcriptome, fungal composition, and network complexity data, we demonstrate an increased dependence on mycorrhiza for nutrient acquisition under the C limitation condition, which is likely due to a shift to fungal community with higher CENA at the cost of lower stability. © 2025 Kunming Institute of Botany, Chinese Academy of Sciences

关键词： Carbon limitation Fungal network complexity Girdling effects Mycorrhizal and root strategies Plant–microbiome interaction Root transcriptome

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Long-term effects of PM2.5 constituents on childhood attention deficit hyperactivity disorder: evidence from a large population-based study in the Pearl River Delta Region, China

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environmental Research 2025年 277卷 121641页

作者： Zeng, Hui-Xian Meng, Wen-Jie Zeng, Qing-Guo Wei, Jing Liu, Lu-Sheng Wu, Qi-Zhen Zhao, Bin Oudin, Anna Yang, Mo Jalava, Pasi Dong, Guang-Hui Zeng, Xiao-Wen Joint International Research Laboratory of Environment and Health Ministry of Education Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment Department of Occupational and Environmental Health School of Public Health Sun Yat-sen University Guangzhou510080 China Department of Atmospheric and Oceanic Science Earth System Science Interdisciplinary Center University of Maryland College ParkMD United States State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing100084 China Department of Public Health and Clinical Medicine Umeå University Umeå Sweden Department of Environmental and Biological Science University of Eastern Finland Kuopio Finland

Background: Evidence linking fine particulate matter (PM2.5) constituents to childhood attention deficit hyperactivity disorder (ADHD) was limited. Objectives: To investigate the individual and joint effects of exposure to PM2.5 constituents on ADHD. Methods: We conducted a large population-based survey involving 110,818 school children aged 6–18 years across six cities in the Pearl River Delta region, China. The three-year average concentrations of PM2.5 constituents (black carbon (BC), organic matter (OM), sulfate, nitrate, and ammonium) were estimated using the ChinaHighAirPollutants dataset. Parents completed an ADHD checklist using the Diagnostic and Statistical Manual of Mental Disorders-IV criteria. The individual and joint associations between PM2.5 components and ADHD were estimated using generalized linear mixed models and the quantile g-computation regression model, respectively. Results: The exposure-response relationships between PM2.5 constituents and ADHD primarily exhibited a nonlinear pattern. Compared with the lowest tertile, the highest tertiles of PM2.5 and its components were linked to greater odds for ADHD (e.g., the adjusted odds ratio (OR) was 1.37 (95 % confidential interval (CI): 1.27, 1.47) for PM2.5, 1.51 (95 %CI: 1.40, 1.63) for OM, 1.29 (95 %CI: 1.20, 1.39) for BC, and 1.20 (95 %CI:1.08, 1.34) for sulfate). Similar positive associations were observed between BC and sulfate exposure and ADHD subtypes. Moreover, joint exposure to PM2.5 components was associated with ADHD (OR = 1.14, 95 % CI:1.10, 1.18), with OM and BC contributing more to the observed associations. Conclusions: These findings highlight the varying contributions of PM2.5 constituents to ADHD and underscore the importance of reducing specific PM2.5 component emissions to mitigate the burden of PM2.5-associated neurodevelopmental diseases. © 2025 Elsevier Inc.

关键词： Regression analysis

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Ecological Mechanisms of Carbon Sequestration in Vegetated Coastal Wetland Ecosystem: Exploring the Roles of Biodiversity and environmental Changes

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Journal of Marine environmental Engineering 2025年第1期12卷 35-47页

作者： Liu, Lele Du, Ning Eller, Franziska Ye, Siyuan Li, Xiaowen Wei, Jifang Guo, Yaolin Brix, Hans Guo, Weihua Key Laboratory of Ecological Prewarning Protection and Restoration of Bohai Sea Ministry of Natural Resources School of Life Sciences Shandong University 72 Binhai Road Qingdao266237 China Department of Biology Aarhus University Ole Worms Alle 1 Aarhus8000 Denmark Key Laboratory of Coastal Wetland Biogeosciences Qingdao Institute of Marine Geology China Geological Survey Qingdao266000 China School of Environment State Key Joint Laboratory of Environment Simulation and Pollution Control Beijing Normal University Beijing100875 China North China Sea Ecological Center of the Ministry of Natural Resources Qingdao266000 China Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary Institute of Biodiversity Science and Institute of EcoChongming School of Life Sciences Fudan University Shanghai200433 China

Vegetated coastal wetlands, also called blue carbon ecosystems, are significant carbon sinks that play a vital role in global climate change mitigation. Understanding the ecological mechanisms of carbon sequestration in these ecosystems is essential to effectively manage and conserve them. This review focuses on macroecological mechanisms of carbon transfer and microecological mechanisms of carbon stabilization in vegetated coastal wetland ecosystems. Macroecological mechanisms include the horizontal and vertical carbon transport coupled to plant ecophysiology and community diversity, while microecological mechanisms include processes related to soil organic matter dynamics, such as decomposition, stabilization, and mineralization. key scientific issues surrounding these mechanisms include transformation between carbon sink and source, stabilization mechanisms of organic carbon, and environmental effects at multiple time scales. A comprehensive research framework is also presented, which integrates spatial-temporal pattern, macroecological mechanism, microecological mechanism, and ecological engineering. Addressing these key scientific questions within the proposed framework can provide valuable insights into the significant role of biodiversity in blue carbon ecosystems, as well as significant implications for management and conservation of vegetated coastal wetlands under global climate changes. © 2025 Old City Publishing, Inc.

关键词： Ecosystems

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Regulating the Anchoring Structure to Enhance Thermostability of Ru Sub-Nano Clusters on Al-Based Supports for Efficient C–O Bonds Hydrogenolysis

SSRN

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SSRN 2025年

作者： Xiao, Hongfei Zhang, Jianghao Ge, Shuchao Du, Chuo Jin, Yifan Xie, Yuanyuan Gai, Chao Fang, Jinhou Zhang, Changbin State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing100085 China University of Chinese Academy of Sciences Beijing100049 China Weifang Research Institute of Materials and Technology for Eco-environmental Protection Shandong Weifang261300 China

Heterogeneous catalyst with highly dispersed active metal species has found wide applications in the catalytic conversion of lignocellulosic biomass, owing to the inherent advantages in metal atom efficiency. However, it is still confronted with the challenge for developing efficient strategies to achieve enhanced thermostability of the highly dispersed metal under harsh conditions. In this work, Ru species are supported on two different aluminum-based materials (i.e., γ-AlOOH and γ-Al2O3) that provide distinct anchoring sites for Ru. Complementary characterizations combined with theoretical calculations demonstrate that, compared with triply bridging Al-O site of γ-Al2O3, the doubly bridging Al-O site of AlOOH exhibits more intense electronic interaction with Ru species. Consequently, this doubly bridging Al-O site as the anchoring site provides sufficient thermal resistance to immobilize the sub-nanometer Ru species under the high-temperature aging condition. The maintained high dispersion of Ru on AlOOH creates an electron-deficient Ru domain and sustains the high activity and selectivity in the production of aromatics during the hydrotreating of diphenyl ether. This work may contribute to the catalyst design for manipulating the surface-anchoring structure to regulate thermostability and dispersion of supported metal catalysts. © 2025, The Authors. All rights reserved.

关键词： Hydrolysis

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Molecular characteristics and plastic additives in dissolved organic matter derived from polystyrene microplastics: Effects of cumulative irradiation and microplastic concentrations

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Water Research 2025年 282卷 123641页

作者： Cao, Yuanyuan Liu, Yang Guo, Kehui He, Wei Hur, Jin Guo, Huaming Key Laboratory of Groundwater Conservation of MWR Key Laboratory of Groundwater Circulation and Environmental Evolution of MOE School of Water Resources and Environment China University of Geosciences Beijing Beijing 100083 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Center for Water and Ecology Tsinghua University Beijing 100084 China Department of Environment and Energy Sejong University 209 Neungdong-ro Seoul Gwangjin-gu05006 Korea Republic of State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences Beijing Beijing 100083 China Frontiers Science Center for Deep-time Digital Earth China University of Geosciences Beijing Beijing 100083 China

Microplastic-derived dissolved organic matter (MP-DOM), released during ultraviolet-induced aging of microplastics (MPs), has emerged as a critical yet underexplored topic regarding the environmental impacts of MPs. However, the effects of irradiation intensity on the release and molecular diversity of MP-DOM, including plastic additives, remain poorly understood. In this study, the photoaging processes of polystyrene MPs (PS-MPs) were simulated under varying cumulative irradiation (irradiation intensity × irradiation duration) and PS-MPs concentrations (1 − 5 g/L). The PS-derived DOM (PS-DOM) was characterized using fluorescence spectroscopy, Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR MS), and liquid chromatography coupled with high-resolution mass spectrometry (LC-HRMS). After 21 days of irradiation, the amount of leached PS-DOM ranged from 7.76 to 39.40 mg-C/g. Cumulative irradiation significantly accelerated PS-MPs aging and PS-DOM leaching (p 2. Beyond this threshold, PS-MPs exhibited substantial size reduction, increased oxidation, and enhanced PS-DOM leaching. FT-ICR MS analysis revealed that PS-DOM contained 30.1 %−31.8 % unique components compared to natural organic matter, with greater degradability at lower PS-MPs concentrations. Furthermore, LC-HRMS identified 13 oxidation products and 25 plastic additives in PS-DOM, with their amounts decreasing as PS-MPs concentrations increased, from 17.05 to 3.24 mg/g and 4.88 to 1.85 mg/g, respectively. Notably, lower PS-MPs concentrations resulted in greater cumulative irradiation per unit mass, intensifying PS-DOM leaching, enhancing degradability, and increasing plastic additives release. This study highlights the environmental implications of per unit cumulative irradiation on MP-DOM leaching and its molecular composition, providing insights into its ecological risks and potential impacts on aquatic systems. © 2025 Elsevier Ltd

关键词： Liquid chromatography

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Passenger cars' zero emission require clean power supply: provincial evidence from NEVs’ indirect emission through 2035

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Journal of Cleaner Production 2025年 507卷

作者： Shi, Xurong Yang, Wenyi Xue, Wenbo Zhang, Zhe Wen, Jie Liu, Xin Yi, Honghong Yan, Gang Cai, Bofeng Wang, Jinnan School of Civil and Resources Engineering University of Science and Technology Beijing Beijing100083 China Center of Environmental Pollution and Greenhouse Gases Co-control Chinese Academy of Environmental Planning Beijing100041 China State Environmental Protection Key Laboratory of Environmental Planning and Policy Simulation Chinese Academy of Environmental Planning Beijing100041 China Center for Carbon Neutrality Chinese Academy of Environmental Planning Beijing100041 China China Electric Power Research Institute Beijing100192 China

China's coal-dominated power structure raises concerns that indirect emissions from electricity generation may offset or even surpass direct emission reduction benefits of new energy vehicles (NEVs). Thus, conducting a life-cycle assessment of NEVs is critical to objectively evaluate these trade-offs. Here, we carried out this assessment for passenger cars, considering NEVs development and power structure transition. Our methodology combines vehicle fleet projection, power grid projection and emission calculation model. Results show that although significant NEVs benefits, by 2035, under baseline power structure, NEVs indirect emission will still account for 31–39% and 17–23% of total emission for CO2 and NOx nationwide. Moreover, it will offset 50% and 18% of use-phase CO2 and NOx reduction, while under clean power structure, these ratios will decrease to ∼32% and 14%. Notably, large discrepancies of NEVs trade-offs exist across 31 provinces. Besides, invisible emission transfer is embedded in electricity transfer: 31% and 69% of NEVs' indirect NOx emissions in Shanxi and Inner Mongolia are projected from NEVs power consumption in other provinces. Therefore, it's urgent to synergistically clean transport and energy sector. © 2025

关键词： Low emission

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Cobalt-copper dual-atom catalyst boosts electrocatalytic nitrate reduction from water

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Journal of Hazardous Materials 2025年 493卷

作者： Wei, Jinshan Lin, Hexing Li, Yi Guo, Ying Liu, Shaoqing Sun, Meng Li, Ya-yun Guangdong Provincial Key Laboratory of New Energy Materials Service Safety & Shenzhen Key Laboratory of Special Functional Materials & Shenzhen Engineering Laboratory for Advance Technology of Ceramics College of Materials Science and Engineering Shenzhen University Shenzhen518060 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing100085 China

Electrochemical nitrate reduction reaction (NO3RR) presents a promising approach for sustainable water denitrification. Yet its practical implementation is hindered by sluggish reaction kinetics. Herein, we develop a nitrogen-doped carbon supported cobalt-copper dual-atom catalyst (CoCu-NC DAC) to significantly enhance the electro-catalytic NO3RR performance. The optimized CoCu-NC DAC demonstrates exceptional activity, achieving a faraday efficiency of 95.3 % and a high NH4+ yield rate of 2.41 mg h−1 cm−2 at −0.6 VRHE, surpassing the performance of conventional Cu/Co single-atom catalysts. In-situ analysis and density functional theory calculations confirm that the synergistic effects arising from (1) optimized electronic structure for balanced intermediate adsorption, and (2) enhanced surface H concentration facilitating NOx hydrogenation. This work not only provides fundamental insights into the DACs, but also offers a practical solution for groundwater nitrate remediation, opening new avenues for the application of atomically dispersed catalysts. © 2025 Elsevier B.V.

关键词： Electrolytic reduction

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Chemodiversity of soil dissolved organic matter affected by contrasting microplastics from different types of polymers

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Frontiers of environmental Science & Engineering 2023年第12期17卷 149-162页

作者： Hong Yu Beidou Xi Lingling Shi Wenbing Tan State Key Laboratory of Environmental Criteria and Risk Assessment and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater PollutionChinese Research Academy of Environmental SciencesBeijing 100012China

Chemodiversity of dissolved organic matter(DOM)is a crucial factor controlling soil nutrient availability,greenhouse gas emissions,and pollutant ***(MPs)are widespread pollutants in terrestrial ecosystems in many ***,the effects of MPs on DOM chemodiversity are not sufficiently understood,particularly under different types of *** UV-Vis spectroscopy,3D fluorescence spectroscopy,and Fourier-transform ion cyclotron resonance mass spectrometry,the effects of three prevalent MPs[polyethylene,polystyrene,and polyvinyl chloride(PVC)]on the chemical properties and composition of soil DOM were investigated via a 310-d soil incubation *** results showed that MPs reduced the aromatic and hydrophobic soil DOM components by more than 20%,with PVC MPs having the greatest ***,as MP contents increase,the humification level of soil DOM significantly *** increased DOM molecules with no heteroatom by 8.3%-14.0%,but decreased DOM molecules with nitrogen content by 17.0%-47.8%.This may be because MPs cause positive“priming effect,”resulting in the breakdown of bioavailable components in soil *** is also related to MPs changing microbial richness and diversity and enriching microbial communities involved in lignin compositions *** the presence of MPs,soil DOM chemodiversity depended on soil pH,electrical conductivity,dissolved organic carbon,soil organic matter,bacterial Shannon,and fungal Chao ***,DOM in MP-contaminated soils featured more lipids and less condensed aromatics and proteins/amino sugars,thereby conferring a lower DOM aromaticity and higher lability.

关键词： Microplastics Dissolved organic matter FT-ICR MS Chemodiversity Molecular signature

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