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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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Synthetic Cu(Ⅲ)from copper plating wastewater for onsite decomplexation of Cu(Ⅱ)-and Ni(Ⅱ)-organic complexes

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Chinese Chemical Letters 2025年第2期36卷 470-475页

作者： Junyi Yu Yin Cheng Anhong Cai Xianfeng Huang Qingrui Zhang National and Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution College of Life and Environmental ScienceWenzhou UniversityWenzhou 325035China State Key Laboratory of Metastable Materials Science and Technology Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource ReuseSchool of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China

Herein,the Cu(Ⅲ)synthesized from copper plating effluent was developed for the first time to evaluate the onsite degradation performance of heavy metal complexes in the wastewater,thus achieving the purpose of“treating waste with waste”.The results indicated that synthetic Cu(Ⅲ)presented the excellent decomplexation performance for Cu(Ⅱ)/Ni(Ⅱ)-organic *** removal efficiency of Cu(Ⅱ)/Ni(Ⅱ)-EDTA significantly increased with increasing Cu(Ⅲ)dosage,and the degradation of Cu(Ⅱ)/Ni(Ⅱ)-EDTA by synthetic Cu(Ⅲ)system displayed highly p H-dependent *** radical quencher experiments confirmed that Cu(Ⅲ)direct oxidation were mainly involved in the degradation of Cu(Ⅱ)-***,the continuous decarboxylation process was proven to be the main degradation pathway of Cu(Ⅱ)-EDTA in Cu(Ⅲ)*** coexisting substances(SO42-,Cl-and fulvic acids)showed little impacts at low level for the removal of Cu(Ⅱ)/Ni(Ⅱ)-EDTA,while retarded the degradation of Cu(Ⅱ)-EDTA slightly at high level,which features high selective ***,it was also effective to remove Cu(Ⅱ)/Ni(Ⅱ)-EDTA from in treating actual Cu/Ni-containing wastewater through synthetic Cu(Ⅲ)treatment.

关键词： Copper plating wastewater Cu(III) Decomplexation Treating waste with waste Selectivity

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Simulation and Experiment of Windage Power Loss of A Shrouded Spiral Bevel Gears under Oil Injection Lubrication

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Chinese Journal of Mechanical engineering 2025年第2期 413-432页

作者： Bo Li Kai Rong Xuyang Zhang Sanmin Wang U-Xuan Tan Xuanyuan Su Laifa Tao School of Mechanical Engineering Northwestern Polytechnical University Department of Engineering Product Development Singapore University of Technology and Design Hangzhou International Innovation Institute Beihang University National Key Laboratory of Science and Technology on Reliability and Environmental Engineering School of Reliability and Systems Engineering Beihang University

During high-speed rotation, the surface of aeronautic spiral bevel gears will generate significant pressure and viscous forces, which will cause a certain amount of windage power loss and reduce the efficiency of the transmission system. Based on the computational fluid dynamics, this paper analyzes the windage power loss of a single spiral bevel gear and a spiral bevel gear pair under oil injection lubrication. In addition, the shroud is used to suppress gear windage loss, and the clearance size and opening angle of the designed shroud are optimized. Finally, by comparing and analyzing the experimental results, the following conclusions were obtained:(1) For a single gear, the speed is the most important factor affecting windage loss, followed by the hand of spiral, and rotation direction;(2) For gear pairs, under oil injection lubrication, the input speed has the greatest impact on windage power loss, followed by the influence of oil injection port speed, temperature and oil injection port pressure;(3) Installing a shroud is an effective method to reduce windage power loss;(4) In the pure air phase, the smaller the clearance between the shroud and the gear surface, and the smaller the radial direction between the shroud and the shaft, the better the effect of reducing windage;(5) In the two-phase flow of oil and gas, it is necessary to design oil drainage holes on the shroud to ensure the smooth discharge of lubricating oil and improve the drag reduction effect.

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Adsorption of typical gasoline vapor emitted from service stations by commercial activated carbon:static/dynamic adsorption and kinetics simulation

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Frontiers of environmental science & engineering 2025年第3期19卷 87-98页

作者： Wei Hu Quanming Liang Dan Lu Beibei Li Biqi Ren Qingye Luan Jia Liu Wenjun Liang Yuhu Huang National Engineering Research Center of Urban Environmental Pollution Control Beijing Key Laboratory of Urban Atmospheric Volatile Organic Compounds Control Technology and ApplicationsBeijing Municipal Research Institute of Eco-Environmental ProtectionBeijing 100037China Key Laboratory of Beijing on Regional Air Pollution Control Faculty of Environment and LifeBeijing University of TechnologyBeijing 100124China Institute of Urban Safety and Environmental Science Beijing Academy of Science and TechnologyBeijing 100054China

Gasoline vapor emissions from service stations significantly affect urban *** the research on the mechanisms and effectiveness of gasoline vapor removal is limited,this study innovatively investigates the static and dynamic adsorption of xylene—a typical gasoline vapor and one of the most active secondary organic aerosol(SOA)species—by commercial activated carbon(AC).The results showed that the saturation static adsorption capacity(Q_(e))of 12 ACs varied from 0.9 to 870.7 mg/g,which correlated with the specific surface area(SSA)and pore *** them,11#and 12#ACs were identified as the most effective adsorbents for typical gasoline vapor *** maximum dynamic Q_(e) increased from 301.5 to 414.3 mg/g when the initial xylene concentration rose from 918 to 2008 mg/m^(3) for 11#AC,and from 201.4 to 406.2 mg/g when the initial xylene concentration increased from 589 to 2120 mg/m^(3) for 12#*** findings implied a direct correlation between higher initial xylene concentrations and greater dynamic Q_(e) values,with static Q_(e) values surpassing dynamic *** adsorption kinetics simulation were analyzed by the pseudo-first-order(PFO)and pseudo-second-order(PSO)*** kinetics results demonstrated that the PFO was more effective in characterizing the adsorption of xylene onto ACs(R2>0.989),indicating that the adsorption of typical gasoline vapor by ACs primarily involves physical *** findings of static/dynamic adsorption and kinetics provide valuable guidance for practical applications of gasoline vapor removal in service stations.

关键词： Activated carbon Gasoline vapor Xylene Dynamic adsorption Breakthrough curve

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Spatial and Temporal Distribution of Metal Elements in the Rivers of Northern Jiangsu Province

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Journal of Ocean University of China 2025年第1期24卷 157-168页

作者： YUAN Liping LIU Qian JIAN Huimin MI Tiezhu YANG Fuxia YAO Qingzhen Frontiers Science Center for Deep Ocean Multispheres and Earth System and Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of EducationOcean University of ChinaQingdao 266100China Laboratory of Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China Key Laboratory of Land and Sea Ecological Governance and Systematic Regulation of the Ministry of Ecology and Environment Shandong Academy for Environmental PlanningJinan 250101China

The concentrations of V,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Mo,Cd,and Pb were determined in Doulonggang River,Xinyanggang River,Huangshagang River,Sheyanghe River,Guangaizongqu River,and Linhonghe River at the North of Jiangsu Province in *** annual average concentrations of V,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Mo,Cd and Pb in the six rivers were 2.20,1.22,4.53,21.9,0.13,2.79,1.77,4.00,2.97,3.87,0.01,0.19μg L^(-1)*** highest concentration of most trace metals were found in Guangaizongqu River and Linhonghe River,and the lowest concentration were found in Xinyanggang River and Huangshagang *** principal component analysis(PCA)resulted of two factors together explained 91.2%of the variance with>1initial eigenvalue,indicating that both natural and anthropogenic activities were contributing factors as the source of metal abundance in rivers of northern Jiangsu *** first major component represented the influence of anthropogenic activities,including industry and agriculture,with a contribution rate of 54.1%,affected Cr,Fe,Cu,Zn,Mo,Cd and *** second(such as V,Mn,Co,Ni,As)was a mixed source,including the natural processes such as precipitation,erosion and weathering and anthropogenic action like industry and agriculture,with a contribution rate of 37.1%.Seasonal variations in trace metal concentrations were influenced by temperature,salinity,water discharge,and input of external *** highest concentrations were found in wet season and were strongly influenced by rainfall and seasonal industrial and agricultural activities.

关键词： trace metal distribution rivers northern Jiangsu Province

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Hierarchical hollow microspheres assembled from carbon nanosheets integrated with molybdenum carbide nanoparticles for boosting microwave absorption properties

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Nano Research 2025年第1期18卷 10-20页

作者： Zongsheng Chen Yahui Wang Yi Liu Zhigang Li Xiangyin Lv Liping Liu Yajing Chang Jiaming Shi Xiao Zhang State Key Laboratory of Pulsed Power Laser Technology School of Electronic EngineeringNational University of Defense TechnologyHefei 230037China Anhui Provincial Laboratory of Advanced Laser Technology School of Electronic EngineeringNational University of Defense TechnologyHefei 230037China Centre for Environmental and Energy Nanomaterials Anhui Key Laboratory of Nanomaterials and NanotechnologyCAS Centre for Excellence in NanoscienceInstitute of Solid State PhysicsHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China

Hierarchical hollow structure has demonstrated potential for enhancing electromagnetic(EM)attenuation and improving impedance matching,garnering significant attention for ***,we have successfully implemented compositional and structural engineering to fabricate hollow Mo2C/C microspheres with controllable composition by coupling interaction between dopamine hydrochloride and ammonium *** the synergistic effect of composition and hollow structure,the strongest reflection loss intensity and broadest effective absorption of the optimized sample reach-70.2 dB and 6.2 GHz,*** formation of hollow heterogeneous structures not only favors impedance matching feature,but also generates considerable contribution to EM attenuation ***,radar cross-section simulation data indicate that hollow Mo2C/C microspheres with compositional optimization and heterogeneous structures have broad prospects for practical applications.

关键词： electromagnetic absorption Mo2C/C microwave absorption hollow structure

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Interlinked water and sediment microplastics in the Laizhou Bay of China

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Journal of Oceanology and Limnology 2025年第2期43卷 446-458页

作者： Hong CHEN Fenghua JIANG Jingxi LI Wei CAO Di ZHANG Futao ZHANG Shiliang WANG Chengjun SUN College of Safety and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590China Key Laboratory of Analytical Technology Development and Offshore Eco-Environment Conservation First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Qingdao National Laboratory of Marine Science and Technology Laboratory of Marine Drugs and Biological ProductsQingdao 266071China

To explore the relationship of microplastic pollution in different media in marine environment,microplastics in the surface seawater and sediments of Laizhou Bay,Bohai Sea,North China,were *** samples were collected using a pre-concentrator equipped with a 20-μm mesh size sieve,and sediment samples were collected by a box *** shape,color,size,and type of microplastics were obtained by a stereomicroscope and a Fourier transform infrared spectrometer(ATR-μ-FT-IR).Results show that the abundance of microplastics in the surface seawater of Laizhou Bay was 858.3±573.2 items/m~3,and that of microplastics in sediments was 151.0±77.4 items/kg dry weight(d.w.)The microplastics in seawater and sediments were mainly ***,the microplastics in seawater were mainly transparent,and those in sediments were transparent and *** highest proportion of microplastics in seawater was rayon(77.48%),followed by polyethylene terephthalate(PET,13.17%).The highest proportion of microplastics in sediments was rayon(73.66%),followed by PET(8.90%).The size of microplastics in 1000-2000μm accounted for the largest proportion of 28.54%in seawater,while that in 500-1000μm took 27.93%in *** in seawater and sediment showed medium-level *** seawater,microplastic abundance was higher in offshore and nearshore areas of *** sediment,microplastic abundance was higher in offshore and nearshore areas of *** results of the principal component analysis(PCA)indicated that microplastics in sediment exhibited greater stability compared to those in *** microplastics in seawater and sediment show a positive correlation in terms of shape and plastic type,while exhibiting a negative correlation in terms of ***,microplastics in sediments were smaller in size,and those in seawater and sediments had consistent size distribution characteristics in space.

关键词： microplastic Laizhou Bay sediment seawater correlation

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Multi-dimensional catalysis: From macroscopic 3D structures to microscopic Ti-V synergistic interaction in lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第5期104卷 585-593页

作者： Yiqi Cao Qinhua Gu Yujie Qi Xiao Tao Wenjuan Han Bo Liu Chunbo Liu Chuyan Zhang Nan Huang Guangbo Che Ming Lu Bingsen Zhang Jilin Joint Technology Innovation Laboratory of Developing and Utilizing Materials of Reducing Pollution and Carbon Emissions College of Engineering Jilin Normal University Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences The Joint Laboratory of MXene Materials Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of Education Jilin Normal University School of Materials Science and Engineering University of Science and Technology of China College of Chemistry Baicheng Normal University

Lithium-sulfur(Li-S) chemistry reaction opens a new battery era with high energy density; meanwhile,multiple electrons migration leads to the complex phase transition of sulfur species. To manipulate the binding strength of multiple key intermediates more efficiently, the bimetallic TiVC MXene is utilized to realize multi-dimensional catalysis. Based on the macroscopic three-dimensional(3D) structure using two-dimensional(2D) MXene architecture, electron conductivity and sulfur utilization are ***, Ti-V catalytic systems regulate multiple reaction intermediates through intermetallic synergies customized surface properties and atomic scale coordination, thereby improving electronic and ionic conductivity. In-situ Raman spectroscopy and electrochemical analysis show that the conversion rate of polysulfides was accelerated during the charge-discharge process. The Ti-V interaction exhibits unique catalytic activity and regulates multiple continuous processes of sulfur species phase transformation, which are essential for the excellent energy performance of Li-S batteries. This study not only clarifies the catalytic mechanism of Ti-V at different dimensions but also proposes a promising strategy for the design of advanced catalytic systems in energy storage technology.

关键词： Bimetallic MXene Catalysis In-situ characterizations Lithium-sulfur batteries Three-dimensional structure

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Enhancing the photocatalytic efficiency by the molecular modification effect derived from pollutant adsorption on highly crystalline BiOBr

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Journal of environmental sciences 2025年第2期148卷 263-273页

作者： Yang Jin Tongyin Liu Yanpeng Mao Fan Li Chun Hu National Engineering Laboratory for Reducing Emissions from Coal Combustion Engineering Research Center of Environmental Thermal Technology of Ministry of EducationShandong Key Laboratory of Energy Carbon Reduction and Resource UtilizationSchool of Energy and Power EngineeringShandong UniversityJinan 250061China Beijing Enterprises Water Group<China>Investment Limited Beijing 100102China Institute of Environmental Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006China Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

The adsorption of pollutants can not only promote the direct surface reaction,but also modify the catalyst itself to improve its photoelectric characteristics,which is rarely studied for water treatment with inorganic photocatalyst.A highly crystalline BiOBr(c-BiOBr)was synthesized by a two-step preparation *** to the calcination,the highly crystalline enhanced the interface interaction between pollutant and *** complex of organic pollutant and[Bi_(2)O_(2)]^(2+)could promote the active electron transfer from the adsorbed pollutant to c-BiOBr for the direct pollutant degradation by holes(h^(+)).Moreover,the pollutant adsorption actually modified c-BiOBr and promoted more unpaired electrons,which would coupling with the photoexcitation to promote generate more O_(2)^(•-).The molecular modification effect derived from pollutant adsorption significantly improved the removal of *** work strongly deepens the understanding of the molecularmodification effect from the pollutant adsorption and develops a novel and efficient approach for water treatment.

关键词： Highly crystalline BiOBr Pollutant adsorption Molecular modification Photocatalysis Water treatment

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