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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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Renewable biosynthesis of isoprene from wastewater through a synthetic biology approach:the role of individual organic compounds

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Frontiers of environmental science & engineering 2024年第3期18卷 13-24页

作者： Min Yang Xianghui Li Weixiang Chao Xiang Gao Huan Wang Lu Lu State Key Laboratory of Urban Water Resource and Environment School of Civil and Environmental EngineeringHarbin Institute of TechnologyShenzhen 518055China Center for Materials Synthetic Biology CAS Key Laboratory of Quantitative Engineering Biology of CASShenzhen Institute of Synthetic BiologyShenzhen Institutes of Advanced TechnologyChinese Academic of ScienceShenzhen 518000China Institute of Urban Ecology and Environmental Technology School of Materials and Environmental EngineeringShenzhen Polytechnic UniversityShenzhen 518055China

The biosynthesis of isoprene offers a more sustainable alternative to fossil fuel-based approaches,yet its success has been largely limited to pure organic compounds and the cost remains a *** study proposes a waste-to-wealth strategy for isoprene biosynthesis utilizing genetically engineered *** bacteria to convert organic waste from real food *** impact of organic compounds present in wastewater on *** growth and isoprene production was systematically *** results demonstrated that with filtration pretreatment of wastewater,isoprene yield,and production achieved 115 mg/g COD and 7.1 mg/(L·h),***,even without pretreatment,isoprene yield only decreased by~24%,indicating promising ***,maltose,glycerol,and lactate are effective substrates for isoprene biosynthesis,whereas starch,protein,and acetate do not support *** *** optimum C/N ratio for isoprene production was found to be 8:***,augmenting essential nutrients in wastewater elevated the isoprene yield increased to 159 mg/g *** wastewater biosynthesis significantly reduced the cost(44%–53%decrease,p-value<0.01)and CO_(2)emission(46%–55%decrease,p-value<0.01)compared with both sugar fermentation and fossil fuel–based *** study introduced a more sustainable and economically viable approach to isoprene synthesis,offering an avenue for resource recovery from wastewater.

关键词： Wastewater Resource recovery Genetic engineering Biosynthesis Isoprene

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Using multi-scale interaction mechanisms in yolk-shell structured C/Co composite materials for electromagnetic wave absorption

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材料科学技术（英文版） 2025年第12期215卷 36-44页

作者： Jintang Zhou Kexin Zou Jiaqi Tao Jun Liu Yijie Liu Lvtong Duan Zhenyu Cheng Borui Zha Zhengjun Yao Guiyu Peng Xuewei Tao Hexia Huang Yao Ma Peijiang Liu Key Laboratory of Material Preparation and Protection for Harsh Environment Ministry of Industry and Information TechnologyCollege of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing211100China Yuxi Research Institute Yuxi Industries GroupChina North Industries CroupNanyang473000China School of Materials Science and Engineering Nanjing Institute of TechnologyNanjing211167China Key Laboratory of Material Preparation and Protection for Harsh Environment Ministry of Industry and Information TechnologyCollege of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing211100China College of Energy and Power Engineering Nanjing University of Aeronautics and AstronauticsNanjing210016China National Key Laboratory on Electromagnetic Environmental Effects and Electro-optical Engineering Army Engineering UniversityNanjing210007China Science and Technology on Reliability Physics and Application Technology of Electronic Component Laboratory the 5th Electronics Research Institute of the Ministry of Industry and Information TechnologyGuangzhou511370China

Advanced chemical engineering for simultaneous modulation of nanomaterial morphology,defects,inter-faces,and structure to enhance electromagnetic and microwave absorption(MA)***,accurately distinguishing the MA contributions of different scale factors and tuning the optimal com-bined effects remains a formidable *** study employs a synergistic approach combining tem-plate protection etching and vacuum annealing to construct a controlled system of micrometer-sized cav-ities and amorphous carbon matrices in metal-organic framework(MOF)*** results demon-strate that the spatial effects introduced by the hollow structure enhance dielectric loss but significantly weaken impedance *** increasing the proportion of amorphous carbon,the balance between electromagnetic loss and impedance matching can be effectively ***,in a suitable graphitization environment,the presence of oxygen vacancies in amorphous carbon can induce signif-icant polarization to compensate for the reduced conductivity loss due to the absence of sp2 *** the synergistic effects of morphology and composition,the samples exhibit a broader absorp-tion bandwidth(6.28 GHz)and stronger reflection loss(-61.64 dB)compared to the original *** conclusion,this study aims to elucidate the multiscale impacts of macroscopic micro-nano structure and microscopic defect engineering,providing valuable insights for future research in this field.

关键词： MOFs Multi-scale regulation Yolk-shell structure Amorphous carbon Oxygen vacancy Microwave absorption

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Ordered mesoporous materials for water pollution treatment:Adsorption and catalysis

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Green Energy & Environment 2024年第8期9卷 1239-1256页

作者： Peng Zhang Mingming He Wei Teng Fukuan Li Xinyuan Qiu Kexun Li Hao Wang College of Environmental Science and Engineering MOE Key Laboratory of Pollution Processes and Environmental CriteriaTianjin Key Laboratory of Environmental Remediation and Pollution TreatmentTianjin Key Laboratory of Environmental Technology for Complex Trans-Media PollutionNankai UniversityTianjin300350China Department of Chemistry and State Key Laboratory Marine Pollution Hong Kong Institute for Advanced Study City University of Hong KongHong Kong999077China State Key Laboratory for Pollution Treatment College of Environmental Science and EngineeringShanghai Institute of Pollution Treatment and Ecological SecurityTongji UniversityShanghai200092China State Key Laboratory of Simulation and Regulation of Water Cycles in River Basins China Institute of Water Resources and Hydropower ResearchBeijing100038China

To meet the growing emission of water contaminants,the development of new materials that enhance the efficiency of the water treatment system is *** mesoporous materials provide opportunities in environmental processing applications due to their exceptionally high surface areas,large pore sizes,and enough pore *** properties might enhance the performance of materials concerning adsorption/catalysis capability,durability,and *** this review,we enumerate the ordered mesoporous materials as adsorbents/catalysts and their modifications in water pollution treatment from the past decade,including heavy metals(Hg^(2+),Pb^(2+),Cd^(2+),Cr^(6+),etc.),toxic anions(nitrate,phosphate,fluoride,etc.),and organic contaminants(organic dyes,antibiotics,etc.).These contributions demonstrate a deep understanding of the synergistic effect between the incorporated framework and homogeneous active ***,the challenges and perspectives of the future developments of ordered mesoporous materials in wastewater treatment are *** work provides a theoretical basis and complete summary for the application of ordered mesoporous materials in the removal of contaminants from aqueous solutions.

关键词： Water pollution treatment Ordered mesoporous materials Toxic contaminants Adsorption Catalysis

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Recycling of waste aluminum scraps to fabricate sulfidated zero-valent iron-aluminum particles for enhanced chromate removal

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Journal of environmental sciences 2024年第4期138卷 650-659页

作者： Yahui Zhang Liguo Zhang Jiajia Zeng Shuqun Xu Jianyu Pan Wenzhuo Huang Jianliang Sun Feng Jiang Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety&MOE Key Laboratory of Theoretical Chemistry of Environment School of EnvironmentSouth China Normal UniversityGuangzhou 510006China Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology School of Environmental Science&EngineeringSun Yat-Sen UniversityGuangzhou 510275China

Massive waste aluminum scraps produced from the spent aluminum products have high electron capacity and can be recycled as an attractive alternative to materials based on zerovalent iron(Fe^(0))for the removal of oxidative contaminants from *** study thus proposed an approach to fabricate micron-sized sulfidated zero-valent iron-aluminum particles(S-Al^(0)@Fe^(0))with high reactivity,electron selectivity and capacity using recycled waste aluminum scraps.S-Al^(0)@Fe^(0)with a three-layer structure contained zero-valent aluminum(Al^(0))core,Fe^(0) middle layer and iron sulfide(FeS)*** rates of chromate(Cr(Ⅵ))removal by S-Al^(0)@Fe^(0)at pH 5.0-9.0 were 1.6-5.9 times greater than that by sulfidated zero-valent iron(S-Fe^(0)).The Cr(Ⅵ)removal capacity of S-Al^(0)@Fe^(0)was 8.2-,11.3-and 46.9-fold greater than those of S-Fe0,zero-valent iron-aluminum(Al^(0)-Fe^(0))and Fe^(0),*** chemical cost of S-Al^(0)@Fe^(0) for the equivalent Cr(Ⅵ)removal was 78.5%lower than that of S-Fe^(0).Negligible release of soluble aluminum during the Cr(Ⅵ)removal was *** significant enhancement in the reactivity and capacity of S-Al^(0)@Fe^(0)was partially ascribed to the higher reactivity and electron density of the Al0core than Fe^(0).More importantly,S-Al^(0)@Fe^(0) served as an electric cell to harness the persistent and selective electron transfer from the Al^(0)-Fe^(0) core to Cr(Ⅵ)at the surface via coupling Fe^(0)-Fe^(2+)-Fe^(3+)redox cycles,resulting in a higher electron utilization ***,S-Al^(0)@Fe^(0) fabricated using recycled waste aluminum scraps can be a cost-effective and environmentally-friendly alternative to S-Fe^(0) for the enhanced removal of oxidative contaminants in industrial wastewater.

关键词： Recycled waste aluminum scraps Oxidative contaminants Cr(Ⅵ)reduction Sulfidated Al^(0)@Fe^(0)particle Electron transfer

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reliability evaluation of PMS considering coupling effect of functional and physical dependency

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Chinese Journal of Aeronautics 2022年第2期35卷 154-163页

作者： Ying CHEN Qichao MA Rui KANG Science and Technology on Reliability and Environmental Engineering Laboratory Beihang UniversityBeijing 100083China Institute of Electronic Engineering China Academy of Engineering PhysicsMianyang 621999China

Aviation and aerospace system are typical Phased-Mission Systems(PMSs)featured with varying configuration,phased load condition and cross phase failure *** coupling effect of Functional Dependency(FDEP)and Physical Dependency(PDEP)has a unique influence on the failure behavior of *** this article,the coupling effect is analyzed,and the degradation of components is modeled with the positive drift wiener process,in which the drift coefficient is related to environmental conditions and operation ***,failure behavior and system reliability are *** avionics controller is studied as a case,with the degradation time distribution model and simulation algorithm,the coupling effect and dynamical system reliability can be *** show that this modeling method can describe the coupling effects of FDEP and PDEP and their influence on the failure behavior and reliability of the PMS system.

关键词： Functional dependency Phased-mission system Physical dependency reliability evaluation Stochastic degradation process

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δ-MnO_(2) decorated layered double oxides in-situ grown on nickel foam towards electrothermal catalysis of n-heptane

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Journal of environmental sciences 2023年第4期126卷 308-320页

作者： Chaoqi Chen Shunzheng Zhao Xiaolong Tang Honghong Yi Fengyu Gao Qingjun Yu Jun Liu Weixiao Wang Tian Tang Xianzheng Meng Department of Environmental Engineering School of Energy and Environmental EngineeringUniversity of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants Beijing 100083China

Energy-saving and efficient monolithic catalysts are hotspots of catalytic purification of industrial gaseous ***,we have developed an electrothermal catalytic mode,in which the ignition temperature required for the reaction is provided by Joule heat generated when the current flows through the *** this paper,Mn/NiAl/NF,Mn/NiFe/NF and Mn/NF metal-based monolithic catalysts were prepared using nickel foam (NF) as the carrier for thermal and electrothermal catalysis of *** results indicated that Mn-based monolithic catalysts exhibit high activity in thermal and electrothermal ***/NiFe/NF achieve conversion of n-heptane more than 99%in electrothermal catalysis under a direct-current (DC) power of 6 W,and energy-saving is 54% compared with thermal *** addition,the results indicated that the introduction of NiAl (or NiFe) greatly enhanced the catalytic activity of Mn/NF,which attributed to the higher specific surface area,Mn3+/Mn4+,Ni3+/Ni^(2+),adsorbed oxygen species (Oads)/lattice oxygen species (Olatt),redox performance of the *** catalytic activity was significantly higher than thermal catalytic activity before complete conversion,which may be related to electronic ***,Mn/NiFe/NF has good cyclic and long-term stability in electrothermal *** paper provided a theoretical basis for applying electrothermal catalysis in the field of VOCs elimination.

关键词： Monolithic catalyst MnO_(2) Electric heating n-Heptane

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Enhanced removal of antibiotic resistance genes during chicken manure composting after combined inoculation of Bacillus subtilis with biochar

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Journal of environmental sciences 2024年第1期135卷 274-284页

作者： Zewen Wu Luan Zhang Hao Lin Shungui Zhou Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China School of Environmental Science and Engineering Hubei Key Laboratory of Mine Environmental Pollution Control and RemediationHubei Polytechnic UniversityHuangshi 435003China Fujian Provincial Key Laboratory of Eco-Industrial Green Technology Wuyi UniversityWuyishan 354300China

This study explored the combined effects of Bacillus subtilis inoculation with biochar on the evolution of bacterial communities,antibiotic resistance genes(ARGs),and mobile genetic elements(MGEs)during the composting of chicken *** results showed that *** inoculation combined with biochar increased bacterial abundance and diversity as well as prolonged the compost thermophilic *** organic matter biodegradation and facilitated the organic waste compost humification process,reduced the proliferation of ARGs by altering the bacterial *** and Actinobacteriota were the main resistant bacteria related to ARGs and *** decrease in ARGs and MGEs was associated with the reduction in the abundance of related host *** inoculation with *** and the addition of biochar could promote nutrient transformation,reduce the increase in ARGs and MGEs,and increase the abundance of beneficial soil taxa.

关键词： Antibiotic resistance gene Bacillus subtilis Bacterial community Biochar Composting

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Advancing Toxicity Predictions:A Review on in Vitro to in Vivo Extrapolation in Next-Generation Risk Assessment

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Environment & Health 2024年第7期2卷 499-513页

作者： Peiling Han Xuehua Li Jingyuan Yang Yuxuan Zhang Jingwen Chen Key Laboratory of Industrial Ecology and Environmental Engineering School of Environmental Science and TechnologyDalian University of TechnologyLiaoningDalian 116024China

As a key step in next-generation risk assessment(NGRA),in vitro to in vivo extrapolation(IVIVE)aims to mobilize a mechanism-based understanding of toxicology to translate bioactive chemical concentrations obtained from in vitro assays to corresponding exposures likely to induce bioactivity in *** conversion can be achieved via physiologically-based toxicokinetic(PBTK)models and machine learning(ML)*** last 5 years have witnessed a period of rapid development in IVIVE,with the number of IVIVE-related publications increasing *** Review aims to(1)provide a comprehensive overview of the origin of IVIVE and initiatives undertaken by multiple national agencies to promote its development;(2)compile and sort out IVIVE-related publications and perform a clustering analysis of their high-frequency keywords to capture key research hotspots;(3)comprehensively review PBTK and ML model-based IVIVE studies published in the last 5 years to understand the research directions and methodology developments;and(4)propose future perspectives for IVIVE from two aspects:expanding the scope of application and integrating new *** former includes focusing on metabolite toxicity,conducting IVIVE studies on susceptible populations,advancing ML-based quantitative IVIVE models,and extending research to ecological *** latter includes combining systems biology,multiomics,and adverse outcome networks with IVIVE,aiming at a more microscopic,mechanistic,and comprehensive toxicity *** Review highlights the important value of IVIVE in NGRA,with the goal of providing confidence for its routine use in chemical prioritization,hazard assessment,and regulatory decision making.

关键词： in vitro to in vivo extrapolation physiologically-based toxicokinetic model big data machine learning in vivo toxicity

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Distribution and bioavailability of mercury in size-fractioned atmospheric particles around an ultra-low emission power plant in Southwest China

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Journal of environmental sciences 2024年第4期138卷 141-152页

作者： Wei Zhang Jinjuan Li Hao Qiu Xingqiang Guo Zhijun Fei Yi Xing Deliang Yin College of Resources and Environmental Engineering Guizhou UniversityGuiyang 550025China College of Resources and Environmental Engineering Guizhou Institute of TechnologyGuiyang 550003China Key Laboratory of Karst Georesources and Environment(Guizhou University) Ministry of EducationGuiyang 550025China School of Energy and Environmental Engineering University of Science&Technology BeijingBeijing 100083China

Ultra-low emission(ULE)technology retrofits significantly impact the particulate-bound mercury(Hg)emissions from coal-fired power plants(CFPPs);however,the distribution and bioavailability of Hg in size-fractioned particulate matter(PM)around the ULE-retrofitted CF-PPs are less ***,total Hg and its chemical speciation in TSP(total suspended particles),PM_(10)(aerodynamic particle diameter≤10μm)and PM_(2.5)(aerodynamic particle diameter≤2.5μm)around a ULE-retrofitted CFPP in Guizhou Province were *** PM_(2.5)concentration was higher around this ULE-retrofitted CFPP than that in the intra-regional urban cities,and it had higher mass Hg concentration than other sizefractioned *** Hg concentrations in PM had multifarious sources including CFPP,vehicle exhaust and biomass combustion,while they were significantly higher in autumn and winter than those in other seasons(P<0.05).Regardless of particulate size,atmospheric PM-bound Hg had lower residual fractions(<21%)while higher HCl-soluble fractions(>40%).Mass concentrations of exchangeable,HCl-soluble,elemental,and residual Hg in PM_(2.5)were higher than those in other size-fractioned PM,and were markedly elevated in autumn and winter(P<0.05).In PM_(2.5),HCl-soluble Hg presented a significantly positive relationship with elemental Hg(P<0.05),while residual Hg showed the significantly positive relationships with HCl-soluble Hg and elemental Hg(P<0.01).Overall,these results suggested that atmospheric PM-bound Hg around the ULE-retrofitted CFPP tends to accumulate in finer PM,and has higher bioavailable fractions,while has potential transformation between chemical speciation.

关键词： Size-fractioned particles Mercury Chemical speciation Coal-fired power plant Ultra-low emission

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