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Co-incorporation of lattice S and P into nano zero-valent iron induces multiple Kirkendall effects for enhanced trichloroethylene reduction efficiently

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Journal of Hazardous Materials 2025年 494卷 138402页

作者： Shi, Yinghao Lyu, Honghong Guo, Saisai Guo, Jiaming Gao, Feilong Tang, Jingchun MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation College of Environmental Science and Engineering Nankai University Tianjin300350 China Tianjin Key Laboratory of Clean Energy and Pollution Control School of Energy and Environmental Engineering Hebei University of Technology Tianjin300401 China

Conventional zero-valent iron (ZVI) materials are limited by the constraints of reactivity-selectivity-stability trade-offs, so designing multi-heteroatom co-modified ZVI with synergistic effects is gradually gaining popularity. Herein, we developed a novel co-modified nZVI by simultaneously doping sulfur (S) and phosphorus (P) heteroatoms into nZVI using the one-step liquid-phase reduction method. In this case, the faster diffusion rate of core iron atoms compared to shell components triggeres multiple Kirkendall effects, causing the inward diffusion of vacancies with further coalescing into radial nanocracks. Regarding the reactivity and selectivity, sulfidation and phosphorylation co-modified nZVI exhibited the best performance, with a trichloroethylene (TCE) dechlorination rate (kobs,TCE) of 0.65 h−1 and an electron efficiency (Εe) of 14.5 %, which are 20.9 and 13.8 times higher than those of unmodified nZVI. A series of characterizations and electrochemical analyses indicated that S and P doping significantly altered the physicochemical properties of the core and shell layers, generating distinctive "lemon slice" nanocracks that could be used as electron transport channels, and FeSX significantly reduced the availability of hydrogen evolution reaction (HER) active surface sites and attenuates the passivation of nZVI. In addition, the co-modified S/P-nZVI exhibited excellent stability in different groundwater conditions, indicating its strong potential for application. © 2025 Elsevier B.V.

关键词： Dechlorination

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Congruent-transformation-based stability criterion of T-S fuzzy systems with time-varying delay via the generalized line-integral Lyapunov function

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IEEE Transactions on Automation Science and engineering 2025年 22卷 14669-14678页

作者： Liu, Zhou-Zhou Jin, Li He, Yong China University of Geosciences School of Automation Wuhan430074 China China University of Geosciences Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems Wuhan430074 China China University of Geosciences Engineering Research Center of Intelligent Technology for Geo-Exploration Ministry of Education Wuhan430074 China

This paper is concerned with the stability analysis of Takagi-Sugeno (T-S) fuzzy systems with time-varying delays. First, by constructing a generalized line-integral Lyapunov function (GLILF), applying the free-matrix-based inequality and the delay-derivative-dependent free-weighting-matrices method, a basic stability criterion is derived. Besides, the structure of the matrices in the stability criterion is reconstructed through congruent transformation, and an improved stability criterion is derived accordingly. To clarify the advancement of the proposed method, a stability condition is given without the GLILF. Finally, two numerical examples and a practical example are applied to show the advancement and merits of the presented method. © 2004-2012 IEEE.

关键词： Lyapunov functions

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Gesture Recognition of sEMG Based on Res-LSTM 17th

Gesture Recognition of sEMG Based on Res-LSTM

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17th International Conference on Intelligent Robotics and Applications, ICIRA 2024

作者： Zhao, Yujia Zou, Chunlong Yun, Juntong Jiang, Du Huang, Li Liu, Ying Jiang, Guozhang Xie, Yuanmin Key Laboratory of Metallurgical Equipment and Control Technology of Ministry of Education Wuhan University of Science and Technology Wuhan430081 China College of Mechanical Engineering Hubei University of Automotive Technology Shiyan442000 China Research Center for Biomimetic Robot and Intelligent Measurement and Control Wuhan University of Science and Technology Wuhan430081 China Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering Wuhan University of Science and Technology Wuhan430081 China Hubei Province Key Laboratory of Intelligent Information Processing and Real-Time Industrial System Wuhan University of Science and Technology Wuhan430081 China College of Computer Science and Technology Wuhan University of Science and Technology Wuhan430081 China School of Mechanical Engineering Hubei Engineering University Xiaogan432000 China

ISBN: (纸本)9789819607761

sEMG (surface electromyography) signal control of bionic prostheses has been widely studied over the past few years. In particular, sparse sEMG signals are rapidly developing in the field of gesture recognition for their convenience, noninvasiveness, and ease of access. However, compared with high-density EMG signals, sparse EMG signals lack rich feature information, which in turn affects gesture recognition accuracy. In order to reduce the loss of feature information of sparse EMG signals in the spatio-temporal dimension, this paper proposes a hybrid neural network Res-LSTM combining residual network and long short-term memory network. The ordinary convolutional blocks in the CNN network are replaced with residual blocks, and the final fully connected layer is removed and a constant mapping layer is added to adequate extraction of spatial feature information of the data. The Res layer’s output is utilized as the input for the long and short-term memory (LSTM) network, which further extracts the features of the data in the temporal dimension, and finally completes the categorization output through a fully connected layer. The average accuracy of 91.11% for gesture-motion classification was verified by training on a homebrew dataset;and tested on a public dataset, NinaPro DB1, with an average accuracy of 91.03%. The experimental findings indicate that the proposed Res-LSTM network framework contributes to solving the problem of lack of feature information of sparse sEMG signals and improves the pattern recognition accuracy. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Gesture recognition

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Hydrogel-integrated waste activated sludge for reliable moisture-driven electrical power generation under low and fluctuating humidity conditions

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Chemical engineering Journal 2025年 513卷

作者： Liu, Junyang Wang, Yi Zhou, Lihua Yu, Zhen Yuan, Yong Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control School of Environmental Science and Engineering Institute of Environmental Health and Pollution Control Guangdong University of Technology Guangzhou510006 China School of Biomedical and Pharmaceutical Sciences Guangdong University of Technology Guangzhou510006 China Research Center for Eco-Environmental Engineering Dongguan University of Technology Dongguan523808 China

Microbial moisture-induced electricity generators (M−MEGs) show great potential for continuous energy generation by converting moisture to electricity using natural microbes, but their practical applications are limited due to difficulties in maintaining stable output in low or fluctuating humidity. Herein, we developed M−MEGs by combining a hydrogel made of tannic acid-coated hydroxyapatite nanowires and polyvinyl alcohol (TA-HAP NWs-PVA) with waste anammox activated sludge (AAS) to enable power generation under variable humidity conditions. We systematically investigated the influence of key design parameters, such as film thickness and humidity levels, on the electricity generation process. The device generates an open-circuit voltage of up to 0.45 V and a current density of 90 µA cm−2, maintaining performance for over 50 h under fluctuating humidity conditions. By optimizing the ratio of TA-HAP NWs-PVA to AAS to 4:6, this MEG achieved a stable open-circuit voltage of 0.32 V and a current density of 10 µA cm−2 under a low humidity of 50 %. The integration of TA-HAP NWs-PVA significantly enhances voltage and current output under low and fluctuating humidity conditions. Furthermore, it notably improves the stability of M−MEGs, which is primarily attributed to the exceptional moisture retention and ion conductivity of the hydrogel materials. The findings indicate that integrating hydrogel material with bacterial cells in MEGs is an effective strategy for achieving efficient and renewable power generation in real-world humidity environments. © 2025 Elsevier B.V.

关键词： Microgels

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Selective coreduction of CO2 and NO3− for urea synthesis via electrochemical pathway modulated by p-block metal-doped copper oxides

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Chemical engineering Journal 2025年 514卷

作者： Yu, Kailun Wang, Hui Yu, Wenchao Zhang, Zhibin Bian, Zhaoyong Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Science and Engineering Beijing Forestry University Beijing100083 China Engineering Research Center for Water Pollution Source Control & Eco-remediation College of Environmental Science and Engineering Beijing Forestry University Beijing100083 China College of Water Sciences Beijing Normal University Beijing100875 China

Electrocatalytic coreduction of CO2 and NO3− for the synthesis of urea is a promising alternative to conventional processes for urea production. Currently, in order to improve the catalytic performance, there is an urgent need for electrocatalysts that can catalyze the highly selective production of urea. Here, the selective synthesis of urea was achieved by loading p-block bimetallic bismuth and indium on the surface of d-block metallic copper oxides, named 0.06Bi2O3-In2O3/Cu2O, for the coreduction of CO2 and NO3− under ambient conditions. A Faraday efficiency (FE) of 39.24 % and a yield of 32.59 μmol h−1 cm−2 for urea were obtained with bismuth and indium co-doping compared to the single p-block metal catalysts. The reaction pathways were revealed by in situ attenuated total reflection Fourier transform infrared spectroscopy of carbon, nitrogen and intermediates after C-N coupling. The combined results of theoretical calculations and experiments demonstrated that the key step of C-N coupling starts via the reaction between *NH2 and *CO intermediates. The prepared catalyst possessed both dual active sites that could adsorb activated CO2 and NO3−, which could not only promote the coupling of intermediates to form C-N bonds, but also optimize the ionization of water to promote the supply of activated *H, which accelerated the deoxidative reduction process required for urea formation, resulting in a high FE and the yield of urea products. © 2025 Elsevier B.V.

关键词： Fourier transform infrared spectroscopy

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Solar interfacial evaporation: From evaporation material design, condensing unit application to practical applications

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Chemical engineering Journal 2025年 513卷

作者： Miao, Yan Wang, Hui Hou, Xiangting Yu, Kailun Yang, Xiang Bian, Zhaoyong Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Science and Engineering Beijing Forestry University Beijing100083 China Engineering Research Center for Water Pollution Source Control & Eco-remediation College of Environmental Science and Engineering Beijing Forestry University Beijing100083 China College of Water Sciences Beijing Normal University Beijing100875 China

Solar interfacial evaporation (SIE) represents an advanced water treatment technology that harnesses solar energy for the purification of natural water, with a focus on heat localization, sustainability, and cost-effectiveness. Nonetheless, SIE encounters several challenges, including suboptimal water production efficiency and obstacles in the practical transformation of applications. This review synthesizes both classical and contemporary research findings to elucidate the process of efficiently generating purified water through SIE. Additionally, it offers a concise overview of photothermal materials (PTMs), emphasizing enhancements in light absorption and evaporation management. The review further addresses the issue of low water production efficiency, which constitutes a significant bottleneck in the SIE process. Moreover, this review summarizes typical condensation systems and proposes strategies for improving condensation efficiency to facilitate continuous water production. It subsequently discusses the current status of practical applications and potential energy utilization of SIE. Finally, the review anticipates future developments and the challenges associated with the practical application of SIE. Based on a comprehensive analysis and in-depth understanding, key areas for future research are identified to address potential issues in both fundamental and practical domains. © 2025 Elsevier B.V.

关键词： Wastewater treatment

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Nitrogen-doped carbon bilayer flow-through electrocatalytic membrane based on transition metal single atoms: Simultaneous generation and activation of H2O2 for ibuprofen degradation

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Chemical engineering Journal 2025年 513卷

作者： Hou, Xiangting Wang, Hui Jia, Lumeng Li, Mengxue Yu, Wenchao Bian, Zhaoyong Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Science and Engineering Beijing Forestry University Beijing100083 China Engineering Research Center for Water Pollution Source Control & Eco-remediation College of Environmental Science and Engineering Beijing Forestry University Beijing100083 China College of Water Sciences Beijing Normal University Beijing100875 China

The development of highly active and selective cathode materials is important for the in-situ synthesis of hydrogen peroxide (H2O2) and its activation to radicals for the degradation of emerging contaminants. In this paper, a nitrogen-doped carbon bilayer catalyst based on transition metal single atoms (Co2-NC/Fe3-C3N4) was developed to construct a flow-through electrocatalytic membrane system as the cathode for the efficient removal of ibuprofen (IBP) from wastewater. The active sites of high-density transition metal single atoms and heteroatoms N synergistically enhanced O2 adsorption and *OOH desorption to promote H2O2 generation. The results showed that the actual contents of Fe and Co single atoms in the catalysts were 6.0 wt% and 4.2 wt%, which were higher than that of common single atoms 2-NC/Fe3-C3N4 bilayer electrocatalytic membrane system could reach 93.1 % at 60 min under optimal conditions. The Fe3-C3N4 layer produced H2O2 and further activated to hydroxyl radical (•OH) mainly through the three electron oxygen reduction reaction (3e--ORR), whereas the Co2-NC layer produced H2O2 through the 2e--ORR to provide the precursors for the Fe3-C3N4 layer for reactive oxygen species generation. The contribution of •OH was as high as 86.49 %, which was the main ROS for degrading IBP. The susceptible reaction sites of IBP were O9, O10, C1, and C11, and there were two main degradation pathways, and the toxicity of the degraded intermediates was reduced, which decreased the environmental risk generated by IBP. © 2025 Elsevier B.V.

关键词： Degradation

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The influencing mechanisms of different characteristics of polystyrene microplastics on Saccharomyces cerevisiae: functional group, particle size and dosage

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environmental technology (United Kingdom) 2025年 1-14页

作者： Tang, Yiyan Yang, Caixia Zou, Jianmei He, Huijun Wang, Dunqiu Feng, Shaocui Chen, Yan Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology Guilin University of Technology Guilin China Engineering Research Center of Watershed Protection and Green Development University of Guangxi Guilin University of Technology Guilin China College of Chemical and Biological Engineering Guilin University of Technology Guilin China

Based on the well-documented hazards of microplastics and the importance and typicality of Saccharomyces cerevisiae (S. cerevisiae) in the environment, in this study, the influencing mechanisms of functional group, particle size and dosage of polystyrene microplastics (PS MPs) on S. cerevisiae were studied systematically. The results showed that compared with the bigger particle size and lower concentration of carboxylated PS MPs, the smaller particle size and higher concentration of aminated PS MPs had the most serious inhibition of the growth of S. cerevisiae, and their cell morphology was more abnormal, the more PS MPs attached to the yeast cells. The results of orthogonal experiment showed that the inhibitory effects of PS MPs on S. cerevisiae followed the order: functional groups > concentrations > particle sizes. Through the analysis of the antioxidant properties of S. cerevisiae, it was found that the activities of superoxide dismutase and catalase were first stimulated and then inhibited, and the concentrations of superoxide dismutase enzymes in the environment with bigger particle size and lower concentration of PS MPs was higher than that in the environment with smaller particle size and higher concentrations of PS MPs. catalase enzyme showed an opposite trend in particle sizes and a similar trend in concentrations. The concentrations of malondialdehyde increased with the increase of PS MPs concentrations and the decrease of particle sizes, indicating that PS MPs could induce S. cerevisiae to produce a large amount of reactive oxygen species, resulting in severe oxidative damage to S. cerevisiae. © 2025 Informa UK Limited, trading as Taylor & Francis Group.

关键词： Yeast

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Critical evaluation of extracellular polymeric substances extraction methods: Extraction efficiency, molecular characteristics, and heavy metals binding properties

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Science of the Total Environment 2025年 959卷 178345页

作者： Ou, Bei Hu, Xueyang Yu, Wenbo Meng, Fanhao Li, Wen Liang, Sha Yuan, Shushan Duan, Huabo Hou, Huijie Xiao, Keke 1037 Luoyu Road Hubei Wuhan430074 China Hubei Provincial Engineering Laboratory of Solid Waste Treatment Disposal and Recycle Technology Hubei Wuhan430074 China Hubei Provincial Research Center of Water Quality Safety and Water Pollution Control Engineering Technology Hubei Wuhan430074 China State Key Laboratory of Coal Combustion Huazhong University of Science and Technology Hubei Wuhan430074 China Environmental Science and Engineering Program Guangdong Technion-Israel Institute of Technology 241 Daxue Road Guangdong Shantou515063 China

Extracellular polymeric substances (EPS) significantly influence the properties and performance of waste activated sludge. Various pretreatment protocols with different extraction efficiency and characteristics of EPS have been reported, which markedly impact subsequent treatment and disposal of sewage sludge. This study systematically assesses the EPS properties from twelve extraction pretreatment methods. The organic and inorganic matters content, cell lysis, basic physicochemical property, molecular weight distribution, and fluorescence properties of extracted EPS were determined. Physical extraction methods (Centrifugation, Heat, and Ultrasound) were relatively mild, resulting in lower extraction of organic matter contents from EPS (3 Da) generation. Chemical extraction methods offered efficient EPS extraction with the different degrees of cell lysis, but it would introduce chemical reagent residues in EPS. Among those extraction methods, EPS extracted by cation exchange resin (CER) method had uniform and abundant molecular weight matters and fluorescence matters distribution. After dialysis, the residual Na and other metal elements could be significantly removed. Then, the fluorescence quenching effect of Cu(II) and Zn(II) at 400 μM on the Bound-EPS after dialysis increased up to the maximum value of 65 % and 30 %, respectively, compared to that without dialysis. It indicates that dialysis coupled with CER extracted EPS has a well extraction efficiency and can maintain the original state of EPS for the subsequent investigation. © 2024 Elsevier B.V.

关键词： Fluorescence quenching

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Critical review of biochar for the removal of emerging inorganic pollutants from wastewater

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Chinese Chemical Letters 2025年第2期36卷 99-107页

作者： Chong Liu Nanthi Bolan Anushka Upamali Rajapaksha Hailong Wang Paramasivan Balasubramanian Pengyan Zhang Xuan Cuong Nguyen Fayong Li College of Water Resources and Architectural Engineering Tarim UniversityAlaer 843300China Department of Chemical&Materials Engineering University of AucklandAuckland 1010New Zealand UWA School of Agriculture and Environment The University of Western AustraliaPerthWestern Australia 6009Australia The UWA Institute of Agriculture The University of Western AustraliaPerthWestern Australia 6009Australia Ecosphere Resilience Research Center Faculty of Applied SciencesUniversity of Sri JayewardenepuraNugegoda 10250Sri Lanka Instrument Center Faculty of Applied SciencesUniversity of Sri JayewardenepuraNugegoda 10250Sri Lanka School of Environmental and Chemical Engineering Foshan UniversityFoshan 528000China Guangdong Provincial Key Laboratory of Integrated Agro-Environmental Pollution Control and Management Institute of Eco-Environmental and Soil SciencesGuangdong Academy of SciencesGuangzhou 510650China Department of Biotechnology&Medical Engineering National Institute of Technology RourkelaRourkela 796008India Centre for Advanced Chemistry Institute of Research and DevelopmentDuy Tan UniversityDa Nang 550000Vietnam Faculty of Environmental Chemical Engineering Duy Tan UniversityDa Nang 550000Vietnam

Current research primarily focuses on emerging organic pollutants,with limited attention to emerging inorganic pollutants (EIPs).However,due to advances in detection technology and the escalating environmental and health challenges posed by pollution,there is a growing interest in treating waters contaminated with *** paper explores biochar characteristics and modification methods,encompassing physical,chemical,and biological approaches for adsorbing *** offers a comprehensive review of research advancements in employing biochar for EIPs remediation in water,outlines the adsorption mechanisms of EIPs by biochar,and presents an environmental and economic *** can be concluded that using biochar for the adsorption of EIPs in wastewater exhibits promising ***,it is noteworthy that certain EIPs like Au(III),Rh(III),Ir(III),Ru(III),Os(III),Sc(III),and Y(III),have not been extensively investigated regarding their adsorption onto *** comprehensive review will catalyze further inquiry into the biochar-based adsorption of EIPs,addressing current research deficiencies and advancing the practical implementation of biochar as a potent substrate for EIP removal from wastewater streams.

关键词： Biochar Emerging inorganic pollutants Adsorption Metal ions Emerging pollutants Removal Emerging contaminants

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