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Preparation of floating BiOCl_(0.6)I_(0.4)/ZnO photocatalyst and its inactivation of Microcystis aeruginosa under visible light

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Journal of environmental sciences 2023年第3期125卷 362-375页

作者： Hong Liu Liuliu Yang Houwang Chen Meng Chen Peng Zhang Ning Ding School of Environmental Science and Engineering Jiangsu Key Laboratory of Environmental Science and TechnologySuzhou University of Science and TechnologySuzhou 215009China Key Laboratory of Cleaner Production and Comprehensive Utilization of Resources China National Light IndustryDepartment of Environmental Science and EngineeringBeijing Technology and Business UniversityBeijing 100048China

Frequent occurrence of harmful algal blooms has already threatened aquatic life and human *** the present study,floating BiOCl_(0.6)I_(0.4)/ZnO photocatalyst was synthesized in situ by water bath method,and and applied in inactivation of Microcystis aeruginosa under visible *** composition,morphology,chemical states,optical properties of the photocatalyst were also *** results showed that BiOCl_(0.6)I_(0.4)exhibited laminated nanosheet structure with regular shape,and the light response range of the composite BZ/EP-3 (BiOCl_(0.6)I_(0.4)/ZnO/EP-3) was tuned from 582 to 638 *** results of photocatalytic experiments indicated that BZ/EP-3 composite had stronger photocatalytic activity than a single BiOCl_(0.6)I_(0.4)and ZnO,and the removal rate of chlorophyll a was 89.28%after 6 hr of photocatalytic *** photosynthetic system was destroyed and cell membrane of algae ruptured under photocatalysis,resulting in the decrease of phycobiliprotein components and the release of a large number of ions (K^(+),Ca^(2+)and Mg^(2+)).Furthermore,active species trapping experiment determined that holes (h+) and superoxide radicals (·O_(2)-) were the main active substance for the inactivation of algae,and the p-n mechanism of photocatalyst was ***,BZ/EP-3 showed excellent algal removal ability under visible light,providing fundamental theories for practical algae pollution control.

关键词： BiOCl_(0.6)I_(0.4)/ZnO Visible light Photocatalysis Algae removal

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Fault Diagnosis of Unmanned Aerial Vehicle Based on the Slime Mold Algorithm under Imbalanced Data Conditions 14

Fault Diagnosis of Unmanned Aerial Vehicle Based on the Slim...

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14th International Conference on reliability, Maintainability and Safety, ICRMS 2023

作者： Wu, Xinman Zhang, Wenjin Li, Yu Suo, Mingliang Institute of Reliability Engineering National Key Laboratory of Science and Technology on Reliability and Environmental Engineering School of Reliability and Systems Engineering Beihang University Beijing China

ISBN: (纸本)9798350329988

With the rapid progress of technology, the application of unmanned aerial vehicles (UAVs) has become widespread in various civilian and military activities. The research on fault diagnosis during a flight is a critical step towards enhancing the safety of UAV systems. Swarm-inspired heuristic algorithms have attracted significant attention owing to their fast iteration speed and strong optimization capabilities. This paper proposes a UAV fault diagnosis method based on the slime mold algorithm (SMA) under the condition of imbalanced data, thus addressing the issue of low diagnostic accuracy caused by a significantly longer normal flight time compared to the fault flight time in UAV operations. Using a real-world dataset of UAV flight faults with multiple fault patterns, the proposed approach optimizes the parameters of the support vector machine through SMA, thereby improving the fault diagnosis performance during actual UAV flights. © 2023 IEEE.

关键词： Micro air vehicle (MAV)

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Next generation desalination membrane with exceptional chlorine resistance

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science China Chemistry 2024年第11期67卷 3500-3502页

作者： Shihong Lin Xinglin Lu Department of Civil and Environmental Engineering Vanderbilt UniversityNashville TN 37235USA CAS Key Laboratory of Urban Pollutant Conversion Department of Environmental Science and EngineeringNational Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefei 230026China

This highlight draws inspiration from a recent publication in science where Zhang and co-workers [1] from Nanjing University of science and technology reported a novel multifunctional polyester reverse osmosis(RO) membrane and its application in seawater desalination. This research represents a notable advancement in the field, as polyester membranes may potentially compete with state-of-the-art polyamide RO membranes in the mainstream market.

关键词： polyester exceptional chlorine

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Prediction model on hydrolysis kinetics of phthalate monoester:A density functional theory study

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Journal of environmental sciences 2024年第1期135卷 51-58页

作者： Tong Xu Jingwen Chen Deming Xia Weihao Tang Jiansheng Cui Chun Liu Shuangjiang Li College of Environmental Science and Engineering Hebei University of Science and TechnologyShijiazhuang 050000China Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education) School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and ManagementInstitute of Eco-environmental and Soil SciencesGuangdong Academy of SciencesGuangzhou 510650China

As primary degradation products of phthalate esters,phthalate monoesters(MPEs)have been widely detected in various aquatic environments and drawn growing toxicological *** kinetics that is of importance for assessing environmental persistence of chemicals remain elusive for ***,kinetics of base-catalyzed and neutral hydrolysis for 18 MPEs with different leaving groups was investigated by density functional theory *** indicate that MPEs with leaving groups having p Kaof<10 prefer dissociative transition *** are more persistent than their parents,and their hydrolysis half-lives were calculated to vary from 3.4 min to 79.2 years(p H=7–9).A quantitative structure-activity relationship model was developed for predicting the hydrolysis kinetics *** was found that p Kaof the leaving groups and electronegativity of the MPEs are key factors determining the hydrolysis *** work may lay a theoretical foundation for better understanding the chemical process that governs MPE persistence in aquatic environments.

关键词： Phthalate monoesters Phthalate esters Hydrolysis Density functional theory Quantitative structure-activity relationship

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Stereoselective effects and its potential mechanism of ofloxacin on the growth and development of Rana nigromaculata:mainly liver lipid metabolism

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Frontiers of environmental science & engineering 2025年第4期19卷 125-138页

作者： Wenjun Zhang Miaomiao Teng Jin Yan Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education College of EnvironmentHohai UniversityNanjing 210098China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology School of Environmental Science and EngineeringSuzhou University of Science and TechnologySuzhou 215009China

Most research on antibiotics in the environment disregards chiral antibiotics,such as ofloxacin(OF).In this study,tadpoles of Rana nigromaculata were exposed to 1μg/L OF and levofloxacin(LVFX,an enantiomer of OF)for 75 *** with dextrofloxacin,LVFX treatment had a greater effect on the inhibition of bodyweight,body length,development stage,and pathological liver ***,OF exerts a stereoselective inhibitory effect on both growth and development,which is consistent with the results at the systemic metabolism *** analysis revealed that the differentially expressed genes between OF and LVFX were mainly immune *** metabolomics showed that the stereoselective biological effect of OF on *** was caused by differences in contents of PE-O 16:0-22:4,PE 16:0-14:0,TAG 45:0-FA16:0,PE-P 18:0-16:0,PE 16:0-16:0,PC 16:0-22:4+AcO,PE 18:1-18:3,PC 16:1-18:1+AcO,and PC 18:1-18:3+***,two enantiomers of OF were selectively bound to enzymes related to lipid *** study provides both theoretical and practical references for the accurate evaluation and scientific control of the ecological risk of chiral antibiotics.

关键词： Chiral antibiotics Amphibians Targeted metabolomics Molecular docking Obesity

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Revealing the thermal stability of sodium-ion battery from material to cell level using combined thermal-gas analysis

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Journal of Energy Chemistry 2025年第4期103卷 838-849页

作者： Anqi Teng Yue Zhang Lihua Jiang Yue Zhang Hongbin Dang Chenchen Wang Zheng Fang Yong Liu Xuefeng Wang Huang Li Wenxin Mei Qingsong Wang State Key Laboratory of Fire Science University of Science and Technology of China College of Safety and Environmental Engineering Shandong University of Science and Technology Anhui Provincial Emergency Management Research Institute Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences

The future large-scale application of sodium-ion batteries（SIBs） is inseparable from their excellent electrochemical performance and reliable safety *** present,there are few studies focusing on their safety *** analysis of thermal stability and structural changes within a single material cannot systematically describe the complex interplay of components within the battery system during the thermal runaway ***,the reaction between the battery materials themselves and their counterparts within the system can stimulate more intense exothermic behavior,thereby affecting the safety of the entire battery ***,this study delved into the thermal generation and gas evolution characteristics of the positive electrode(NaxNi1/3Fe1/3Mn1/3O2,NFM111) and the negative electrode（hard carbon,HC） in SIBs,utilizing various material *** the integration of microscopic and macroscopic characterization techniques,the underlying reaction mechanisms of the positive and negative electrode materials within the battery during the heating process were *** important results are derived from this study:（Ⅰ） The instability of the solid electrolyte interphase（SEI） leads to its decomposition at temperatures below 100℃,followed by extensive decomposition within the range of 100-150 ℃,yielding heat and the formation of inorganic compounds,such as Na2CO3and Na2O;（Ⅱ） The reaction between NFM111 and the electrolyte constitutes the primary exothermic event during thermal abuse,with a discernible reaction also occurring between sodium metal and the electrolyte throughout the heating process;（Ⅲ） The heat production and gas generation behaviors of multi-component reactions do not exhibit complete correlation,and the occurrence of gas production does not necessarily coincide with thermal *** results presented in this study can provide useful guidance for the safety improvement of SIBs.

关键词： Decomposition Gas generation Sodium-ion battery safety Thermal stability

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Solar evaporation for simultaneous oil-water separation and electricity generation with Janus wood-based absorbers

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Frontiers of environmental science & engineering 2024年第2期18卷 13-23页

作者： Yue Yang Ze Fu Qi Zhang Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science&TechnologyNanjing 210094China Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education) School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresCollege of Engineering and Applied SciencesKey Laboratory of Intelligent Optical Sensing and Manipulation(Ministry of Education)Jiangsu Key Laboratory of Artificial Functional MaterialsNanjing UniversityNanjing 210093China

Oily wastewater from ocean oil spills endangers marine ecosystems and human health. Therefore, developing an effective and sustainable solution for separating oil-water mixtures is urgent. Interfacial solar photothermal evaporation is a promising approach for the complete separation of two-phase mixtures using only solar energy. Herein, we report a carbonized wood-based absorber with Janus structure of comprising a hydrophobic top-layer and an oleophobic bottom-layer for simultaneous solar-driven oil-water separation and electricity generation. Under sunlight irradiation, the rapid evaporation of seawater will induce a separation of oil-water mixtures, and cause a high salt concentration region underlying the interface, while the bottom “bulk water” maintains in a low salt concentration, thus forming a salinity gradient. Electricity can be generated by salinity gradient power. Therefore, oil-water separation efficiency of > 99% and derived extra electricity power of ~0.1 W/m2 is achieved under solar radiation, demonstrating the feasibility of oil-water separation and electricity production synchronously directly using solar energy. This work provides a green and cost-effective path for the separation of oil-water mixtures.

关键词： Oily wastewater Carbonized wood Salinity gradient Electricity generation Solar irradiation

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Adsorption and membrane separation for removal and recovery of volatile organic compounds

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Journal of environmental sciences 2023年第1期123卷 96-115页

作者： Guoqiang Gan Shiying Fan Xinyong Li Zhongshen Zhang Zhengping Hao State Key Laboratory of Fine Chemicals Key Laboratory of Industrial Ecology and Environmental Engineering(MOE)School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China National Engineering Laboratory for VOCs Pollution Control Material and Technology University of Chinese Academy of SciencesBeijing 101408China

Volatile organic compounds(VOCs)are a crucial kind of pollutants in the environment due to their obvious features of severe toxicity,high volatility,and poor *** is particularly urgent to control the emission of VOCs due to the persistent increase of concentration and the stringent *** China,clear directions and requirements for reduction of VOCs have been given in the“national plan on environmental improvement for the 13th Five-Year Plan period”.Therefore,the development of efficient technologies for removal and recovery of VOCs is of great *** technologies are favored by researchers due to their advantages in both recycling VOCs and reducing carbon *** them,adsorption and membrane separation processes have been extensively studied due to their remarkable industrial *** overview was to provide an up-to-date progress of adsorption and membrane separation for removal and recovery of ***,adsorption and membrane separation were found to be the research hotspots through bibliometric ***,a comprehensive understanding of their mechanisms,factors,and current application statuses was ***,the challenges and perspectives in this emerging field were briefly highlighted.

关键词： Volatile organic compounds(VOCs) Removal and recovery technology Adsorption Membrane separation Bibliometric analysis

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Oxygen vacancy-rich CoMoO4/Carbon nitride S-scheme heterojunction for boosted photocatalytic H_(2)production:Microstructure regulation and charge transfer mechanism

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Journal of Materials science & technology 2024年第31期198卷 176-185页

作者： Jiani Qin Yanli Dong Xiaojuan Lai Bo Su Bao Pan Chuanyi Wang Sibo Wang School of Environmental Science and Engineering Shaanxi University of Science and TechnologyXi'an 710021China Key Laboratory of Chemical Additives for China National Light Industry School of Chemistry and Chemical EngineeringShaanxi University of Science and TechnologyXi'an 710021China State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 350116China

Developing highly efficient S-scheme photocatalysts is a subject of immense interest for harnessing solar energy towards sustainable hydrogen ***,a novel S-scheme heterojunction of oxygen vacancy-rich CoMoO_(4)/CN(CMO/CN)photocatalyst was rationally constructed through loading CoMoO_(4)nanorods on carbon nitride(CN)nanosheets via a direct one-pot calcination *** CMO/CN S-scheme heterojunction exhibited enhanced surface area,fine CN dispersion,rich oxygen vacancies,and accelerated charge separation/transfer efficiency,which were conducive to improving photocatalytic H_(2)evolution *** note,the optimal 3%CMO/CN sample displayed the highest H_(2)production rate of 8.35 mmol g^(-1)h^(-1),which is 4.6 folds that of pristine *** situ irradiated X-ray photoelectron spectroscopy(XPS)and electron paramagnetic resonance(EPR)characterizations confirmed the S-scheme charge transfer path between CN and CMO,which greatly promoted spatial charge *** functional theory(DFT)calculations together with contact angle tests revealed the reduced activation energies for H_(2)O dissociation and enhanced hydrophilicity of the CMO/*** CMO/CN photocatalysts also presented high stability and fine *** work may provide insights into the combination of defect engineering and heterojunction designing for high-efficiency solar-to-chemical energy conversion.

关键词： S-scheme CoMoO_(4) Carbon nitride Oxygen vacancy Photocatalysis

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ZnFe_(2)O_(4)/BiVO_(4)Z-scheme heterojunction for efficient visible-light photocatalytic degradation of ciprofloxacin

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Frontiers of Chemical science and engineering 2023年第11期17卷 1728-1740页

作者： Beibei Wang Kejiang Qian Weiping Yang Wenjing An Lan-Lan Lou Shuangxi Liu Kai Yu MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Technology for Complex Transmedia PollutionCollege of Environmental Science and EngineeringNankai UniversityTianjin 300350China Institute of New Catalytic Materials Science School of Materials Science and EngineeringNational Institute of Advanced MaterialsNankai UniversityTianjin 300350Chin

A novel Z-scheme ZnFe_(2)O_(4)/BiVO_(4)heterojunction photocatalyst was successfully synthesized using a convenient solvothermal method and applied in the visible light photocatalytic degradation of ciprofloxacin,which is a typical antibiotic contaminant in *** heterostructure of as-synthesized catalysts was confirmed using X-ray diffraction,scanning electron microscopy,transmission electron microscopy and X-ray photoelectron spectroscopy *** with the singlephase counterparts,ZnFe_(2)O_(4)/BiVO_(4)demonstrated considerably enhanced photogenerated charge separation efficiencies because of the Z-scheme transfer mechanism of electrons between the composite ***,the 30%ZnFe_(2)O_(4)/BiVO_(4)catalyst afforded a degradation rate of up to 97%of 20 mg/L ciprofloxacin under 30 min of visible light irradiation with a total organic carbon removal rate of 50%,which is an excellent activity compared with ever reported BiVO_(4)-based *** addition,the liquid chromatography-mass spectrometry and quantitative structure-activity relationships model analyses demonstrated that the toxicity of the intermediates was lower than that of the parent ***,the as-synthesized ZnFe_(2)O_(4)/BiVO_(4)heterojunctions were quite stable and could be reused at least four *** study thus provides a promising Z-scheme heterojunction photocatalyst for the efficient removal and detoxication of antibiotic pollutants from wastewater.

关键词： ZnFe_(2)O_(4)/BiVO_(4) Z-scheme heterojunction photocatalytic degradation ciprofloxacin

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