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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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A comparative study on the formation of nitrogen-containing organic compounds in cloud droplets and aerosol particles

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Journal of Environmental Sciences 2025年第3期149卷 456-464页

作者： Guohua Zhang TaoWang Qinhao Lin Kun Liu Wei Sun Duohong Chen Lei Li Xinming Wang Xinhui Bi State Key Laboratory of Organic Geochemistry and Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization Guangzhou Institute of GeochemistryChinese Academy of Sciences(CAS)Guangzhou 510640China Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control Guangzhou Institute of GeochemistryCASGuangzhou 510640China University of Chinese Academy of Sciences Beijing 100049China School of Environmental Science and Engineering Institute of Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China State Environmental Protection Key Laboratory of Regional Air Quality Monitoring Guangdong Environmental Monitoring CenterGuangzhou 510308China Institute of Mass Spectrometer and Atmospheric Environment Jinan UniversityGuangzhou 510632China

Nitrogen-containing organic compounds(NOCs)may potentially contribute to aqueous secondary organic aerosols,yet the different formation of NOCs in aerosol particles and cloud droplets remains *** the in-situ measurements performed at a mountain site(1690 m a.s.l.)in southern China,we investigated the formation of NOCs in the cloud droplets and the cloud-free particles,based on their mixing state information of NOCscontaining particles by single particle mass *** relative abundance of NOCs in the cloud-free particles was significantly higher than those in cloud residual(cloud RES)*** were highly correlated with carbonyl compounds(including glyoxalate and methylglyoxal)in the cloud-free particles,however,limited correlation was observed for cloud RES *** of their mixing state and temporal variations highlights that NOCs was mainly formed from the carbonyl compounds and ammonium in the cloud-free particles,rather than in the cloud RES *** results support that the formation of NOCs from carbonyl compounds is facilitated in concentrated solutions in wet aerosols,rather than cloud *** addition,we have identified the transport of biomass burning particles that facilitate the formation of NOCs,and that the observed NOCs is most likely contributed to the light *** findings have implications for the evaluation of NOCs formation and their contribution to light absorption.

关键词： Nitrogen-containing organic compounds Individual particles Cloud Carbonyl compounds Mixing state

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Substrate type-driven differences in interfacial microbial community and pathogenic risk: Clay, microplastics and activated carbon

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Gondwana Research 2025年 143卷 157-165页

作者： Zhang, Taishuo Wang, Wenfu Zhi, Xiang Ye, Xiaoqian Wang, Rui Zhao, Jiarui Dai, Jiamin Qiang, Hong Liu, Peng Jia, Hanzhong Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China Ministry of Agriculture College of Natural Resources and Environment Northwest A&F University Shaanxi Yangling 712100 China College of Resources and Environment Yunnan Land and Resources Vocational College Kunming 650217 China Key Laboratory of Organic Compound Pollution Control Engineering (MOE) School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 China

This study investigated the microbial colonization, bacterial community and potential risks in natural (montmorillonite (MMT)) and artificial substrates (activated carbon (AC), polypropylene (PP) and polystyrene (PS)) by microcosm incubations in surface water. Biofilm biomass and polysaccharide content indicate that the colonization potential of microbes on different substrates followed the order of AC > MMT > PP > PS. High-throughput sequencing results reveal that microbes selectively colonized various substrates and formed unique bacterial community. Compared to the artificial substrate, natural substrate enriched with high abundance but low diversity of microbial community. In addition, bacterial community on natural substrates exhibited stronger nitrogen cycling function than artificial substrates, whereas bacterial community on artificial substrates (especially microplastics) exhibited stronger carbon cycling functions, such as aromatic_compound_degradation and hydrocarbon_degradation. Also, Brevundimonas diminuta, Sphingomonas paucimobilis, Paracoccus sanguinis and other twenty-five species of pathogenic bacteria were identified in various substrates and their abundance was higher on MMT than on other substrates. However, many more species of pathogenic bacteria on microplastic are associated with human diseases, implying a higher environmental risk. These results indicated that microbial community composition and function on natural and artificial substrates exhibited substrate-driven differences, highlighting the lower concerns of artificial substrates than natural ones with associated biofilms in surface water. © 2025 International Association for Gondwana Research

关键词： Artificial substrate Bacterial community Environmental risk Microbial colonization Pathogenic bacteria

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Advancements in silicon-air batteries:High performance asymmetric-electrolyte and quasi-solid-state designs for portable applications

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Carbon Energy 2025年第2期7卷 98-108页

作者： Shengcui Pang Junjie Wang Baoling Wang Mingshan Zhu Guangzhi Hu Haijiao Xie Sujuan Hu Yunnan Key Laboratory of Metal-Organic Molecular Materials and Device School of Chemistry and Chemical EngineeringKunming UniversityKunmingChina College of Environment and Climate Jinan UniversityGuangzhouChina Institute for Ecological Research and Pollution Control of Plateau Lakes Yunnan UniversityKunmingChina Hangzhou Yanqu Information Technology Co. Ltd.HangzhouZhejiangChina

Silicon-air batteries(SABs)hold significant potential as efficient energy conversion devices due to their high theoretical energy density,theoretical discharge voltage,and favorable energy-to-cost ***,their applicability has been hindered by low output discharge potential,high discharge polarizations,and singular aqueous *** address these,the catalyst with faster oxygen reduction reaction(ORR)kinetic rate,nitrogen-doped carbon materials functionalized with FeMo metal clusters(FeMo-NC),was designed in acid electrolyte and thus high output voltage and energy density SABs with asymmetric-electrolytes have been *** innovative design aligns the reaction rates of the cathode and anode in SABs,achieving stable discharge around 1.7 V for 188 ***,an all-in-one quasisolid-state SAB(QSSSAB)was first developed using a suitable acid-base gel *** all-in-one QSSSAB showcases good safety,low cost,and portability,with open-circuit voltage of 1.6 V and energy density of 300.2 Wh kg^(-1),surpassing the energy density of most previously reported aqueous *** terms of application,these compact all-in-one QSSSABs can provide stable and reliable power support for portable small electronic devices(such as electronic players,diodes,and electronic watches).

关键词： all-in-one asymmetric-electrolytes high output voltage quasi-solid-state silicon-air batteries

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Enhancing advanced oxidation processes:the role of AI in heterogeneous catalysis

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Science Bulletin 2025年第6期70卷 811-814页

作者： Ning Li Wenjie Gao Beibei Yan Zhanjun Cheng Guanyi Chen Yong Sik Ok School of Environmental Science and Engineering Tianjin University/Tianjin Engineering Research Center for Organic Wastes Safe Disposal and Energy UtilizationTianjin 300072China School of Mechanical Engineering Tianjin University of CommerceTianjin 300134China Key Laboratory of Plateau Environmental Engineering and Pollution Control School of Ecology and EnvironmentTibet UniversityLhasa 850000China Korea Biochar Research Center&Division of Environmental Science and Ecological Engineering Korea UniversitySeoul02841Republic of Korea

Water is the source of ***,there is a significant shortage of water resources on Earth,particularly the clean and safe water essential for human consumption[1].According to statistics,a quarter of the world’s populat... 详细信息

关键词： advanced oxidation processes water scarcity AI safe drinking water heterogeneous catalysis

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Climate change projections for Diamer Division in lesser Himalayas using multi-global climate model ensemble

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Environmental Science and pollution Research 2025年第3期32卷 1668-1680页

作者： Ahmad, Didar Faridullah, Faridullah Irshad, Muhammad Bacha, Aziz Ur Rahim Hafeez, Farhan Iqbal, Akhtar Ullah, Zahid Afridi, Muhammad Naveed Alrefaei, Abdulwahed Fahad Nazir, Rashid Department of Environmental Sciences COMSATS University Islamabad Abbottabad Campus Abbottabad22060 Pakistan State Key Laboratory of Urban Water Resource and Environment Shenzhen Key Laboratory of Organic Pollution Prevention and Control School of Eco-Environment Harbin Institute of Technology Shenzhen Shenzhen518055 China Department of Environmental Science and Engineering Fudan University Shanghai200433 China State Key Laboratory of Biogeology and Environmental Geology School of Environmental Studies China University of Geosciences Wuhan430074 China Department of Zoology College of Science King Saud University P.O. Box 2455 Riyadh11451 Saudi Arabia

Pakistan, like many other regions around the world, is experiencing the impacts of climate change, particularly in its northern region. These changes have adverse impacts on ecosystems and biodiversity. Herein, we have investigated future projections of temperature and precipitation trends for three periods historical (HT = 1975–2005), near-term (NT = 2010–2029), and mid-term (MT = 2030–2050) using climate model intercomparison projects along with global climate models (GCMs) including RCP4.5 and RCP8.5. The historical records spanning from 1975 to 2005 reveal that the Chilas region has a notable rise of 8 °C in maximum temperature (Tmax), whereas the Astore district exhibited a trend of decreasing temperatures. When examining the projected temperature trends using GCMs (RCP4.5 and RCP8.5), the Chilas region is predicted to undergo a further increase of 6 °C in Tmax. In contrast, the Babusar region is projected to observe a significant decrease of 2 °C for the period between 2010 and 2050. Additionally, the precipitation results obtained from historical-based analysis for the period 1975 to 2005 indicated that the Babusar area exhibited increased precipitation patterns to 20 mm on an annual basis. Similarly, the Astore region has the most significant decline in precipitation, with a reduction of 40 mm annually. The predicted precipitation patterns for the period between 2010 and 2050 under the RCP8.5 revealed that the Babusar region has maximum precipitation (25 mm). Conversely, the Astore region exhibited reduced precipitation patterns, recording minimum precipitation (40 mm). In the results from RCP4.5, the precipitation showed a similar pattern with a maximum of 35 mm and a minimum of 15 mm in the Babusar and Astore, respectively. The region’s glaciers, snow cover, and land use systems are deteriorated by these changes in temperature and precipitation patterns. The increased winter and decreased summer precipitation under varied temperatures and precipitation cau

关键词： Miocene

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N, O Dual-Coordinated Hcns@Fe Single-Atom Nanozyme Swith Enhanced Peroxidase-Like Activity for Portable Detection of Acetylcholinesterase Activity and its Pesticide Inhibitors

SSRN

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SSRN 2025年

作者： Yang, Shu Zhang, Ganbing Xu, Hui National Key Laboratory of Green Pesticide Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction Ministry of Education College of Chemistry Central China Normal University Wuhan430079 China Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry Ministry-of-Education Key Laboratory for the Synthesis and Applications of Organic Functional Molecules College of Chemistry and Chemical Engineering Hubei University Wuhan430062 China

Single-atom nanozymes (SAzymes) exhibit superior catalytic activity, making it a promising candidate for constructing biosensors. Herein, we constructed a hollow carbon nanocages supported, N and O double-coordinated Fe SAzymes (HCNs@Fe SAs) through a template and pyrolysis strategy. Abundant oxygen atoms in pre-modified template SiO2@resorcinol-formaldehyde provided enough binding sites and promoted the dispersion and stabilization of metal atoms. Compared with non-O modified nanozymes, HCNs@Fe SAs exhibited an 8-fold enhancement in catalytic efficiency. Benefiting from its exceptional peroxide-like activity, a straightforward and dependable colorimetric sensing platform was developed to assess the activity of Acetylcholinesterase and its inhibitor organophosphorus pesticide (OP) in real water samples and fruit substrates, with the limit of detection of 0.02318 mU mL-1 and 0.85 ng mL-1, respectively. An OPs test paper was also designed for point-of-care determination of OP with satisfactory sensitivity. This study provides a new strategy of template pre-modification to design SAzymes with enhanced catalytic efficiency. © 2025, The Authors. All rights reserved.

关键词： Binding sites

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Polyethylene microplastics hamper aged biochar’s potential in mitigating greenhouse gas emissions

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Carbon Research 2025年第1期4卷 1-14页

作者： Chen, Yalan Wang, Zhibo Zhang, Anqi Li, Yang Sun, Ke Jiang, Chenrun Gunina, Anna Aloufi, Abeer S. Liang, Xinru Han, Zichen Xiao, Yue Zhang, Yunqian Du, Zhangliu Zhu, Shishu Kuzyakov, Yakov State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing100875 China College of Life Sciences Beijing Normal University Beijing100875 China Department of Urban Engineering Graduate School of Engineering The University of Tokyo Tokyo113-8656 Japan Agrarian and Technological Institute RUDN University Miklukho-Maklaya st. 6 Moscow117198 Russia Department of Biology College of Science Princess Nourah Bint Abdulrahman University P.O. Box 84428 Riyadh11671 Saudi Arabia Beijing Key Laboratory of Biodiversity and Organic Farming College of Resources and Environmental Sciences China Agricultural University Beijing100193 China The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters Ministry of Education School of Environment and Energy South China University of Technology Guangzhou510006 China Department of Soil Science of Temperate Ecosystems Department of Agricultural Soil Science University of Goettingen Göttingen37077 Germany Moscow117198 Russia

While biochar effectively reduces greenhouse gas emissions, the coincident microplastics will alter these benefits. To assess the long-term efficacy of biochar application in reducing emissions amidst microplastic interference, we investigated the interactive effects of polyethylene microplastics (1%–5% wt) and decadal biochar addition (aged biochar) on C and N stability in a Fluvic Cambisol. Aged biochar and polyethylene individually reduced CO2 emissions by 49% and 18%, respectively, over 91-day incubation. This was due to decreased soil aggregation, dissolved organic matter (DOM) content, and increased DOM aromaticity, which reduced microbial biomass and chitinase activity associated with soil organic matter (SOM) decomposition. This ultimately led to increased accumulation of microbial necromass carbon (MNC) to soil stable carbon pool. Interestingly, the coexistence of polyethylene diminished the efficacy of biochar in mitigating CO2 emissions (+ 44 ~ 82%) and stabilizing MNC (-18 ~ 23%). This was because the interaction between polyethylene and biochar facilitated macroaggregate formation and DOM accumulation and decreased DOM aromaticity, which increased microbial biomass and chitinase activity for SOM decomposition. Similar to soil C dynamics, aged biochar largely reduced N2O emissions by 54%, due to decreased nirK but increased nifH genes. Polyethylene increased N2O emissions by 5% and 25% in biochar-free and aged biochar soil, respectively, likely through upregulation of nirS and nirK but downregulating nifH gene expression. Thus, polyethylene microplastics may undermine the benefits of biochar in mitigating climate change, highlighting the necessity to recognize microplastics as a global change factor and to incorporate their role in elemental cycling alongside their global transport. Graphic Abstract: (Figure presented.) © The Author(s) 2025.

关键词： Greenhouse gas emissions

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Unraveling the anti-poisoning mechanism of highly dispersed Ni atoms enhanced porous MnOx catalysts in the selective reduction of NOx by NH3

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Journal of Colloid and Interface Science 2025年 694卷

作者： Zhao, Minghu Chen, Junyi Wu, Fei Wang, Yungang Chen, Kai Xiong, Chao Zhu, Rongshu State Key Laboratory of Urban Water Resource and Environment Shenzhen Key Laboratory of Organic Pollution Prevention and Control School of Eco-Environment Harbin Institute of Technology Shenzhen Shenzhen518055 China Shenzhen Triumph Science & Technology Engineering Co. Ltd Shenzhen518055 China Co. Ltd. Shenzhen518071 China State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology Institute of Green Petroleum Processing and Light Hydrocarbon Conversion College of Chemical Engineering Zhejiang University of Technology Hangzhou310014 China

Rationally designing catalysts suitable for flue gas purification at low temperatures and unraveling the anti-poisoning mechanism at the atomic level remain challenges. Here, a highly dispersed Ni-doped MnOx catalyst (Ni0.1Mn0.9Ox) was constructed and applied for selective catalytic reduction (SCR) of nitrogen oxides (NOx). The long-term stability of Ni0.1Mn0.9Ox is up to 80% (180 °C) after 18 h under SO2 and H2O conditions. This is due to the fact that the highly dispersed Ni atoms enhance the redox and surface acidity of MnOx, and modulate the electronic structure of the active Mn sites. The denitrification reaction on Ni0.1Mn0.9Ox mainly follows the Eley-Rideal mechanism. The anti-poisoning mechanism is that the introduction of Ni weakens the electron transfer between the Mn site and SO2, thereby inhibiting the adsorption of SO2. In particular, the H2O adsorbed on the Ni sites is decomposed to replenish the depleted Brønsted acid sites, which facilitates the adsorption of NH3. However, an excess of H2O can have an inhibitory effect. In addition, the mesoporous structure may increase the mass transfer rate and reduce the accumulation of harmful substances. This study provides viable insights for the design of SCR catalysts with excellent anti-poisoning ability. © 2025 Elsevier Inc.

关键词： Nitrogen oxides

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In situ regeneration of phenol-saturated activated carbon fiber via an electro-permanganate process

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Journal of Water Process engineering 2025年 72卷

作者： Liu, Zhen Liu, Lang Fu, Yiwei He, Huan Zhao, Chuanliang Duan, Xiaodi Ren, Bangxing Zhang, Zhe Yuan, Shaochun Chen, Yao Engineering Laboratory of Environmental Hydraulic Engineering of Chongqing Municipal Development and Reform Commission Chongqing Jiaotong University Chongqing 400074 China Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming 650500 China School of Civil Engineering Chang' an University Shaanxi Xi'an 710061 China Key Laboratory of Organic Compound Pollution Control Engineering (MOE) School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 China Environmental Engineering and Science Program Department of Chemical and Environmental Engineering (ChEE) University of Cincinnati Cincinnati 45221-0071 OH United States

The use of activated carbon (AC) for the adsorption of organic pollutants has proven to be an effective technology for treating industrial wastewater. However, existing electrochemical advanced oxidation technologies (E-AOT) employed for the regeneration of activated carbon exhibit certain limitations, including the reabsorption of intermediate substances and the degradation of the carbon structure. In this study, we employed electro-permanganate (E-PM) technology to regenerate phenol-saturated activated carbon fiber (ACF). Unlike the existing E-AOT regeneration system, such as those utilizing electro-peroxydisulfate and electro-persulfate, the Mn(III) and Mn(V) produced in the E-PM system induce the least structural damage on the ACF. In addition, during the E-PM process, the generation of hydroxyl radicals (•OH) at the anode poses a low risk of damage to the cathode structure due to mass transfer limitations. During the E-PM process, Mn(III), Mn(V), Mn(VI), and •OH interact with MnO₂, leading to secondary adsorption of intermediate products, which constitute approximately 4.32 % of the total adsorption. When compared to our previous research (regeneration efficiency of 75.69 %, phenol removal rate of 93.31 %), the efficiency of multiple regenerations using the E-PM system has markedly improved (regeneration efficiency of 91.22 %, phenol removal rate of 94.89 %). These findings indicate that the E-PM system offers a promising regeneration strategy for activated carbon, characterized by a 93.11 % reduction in energy consumption compared to electrochemical regeneration systems, a high regeneration efficiency, preservation of pore structure, and a minimized risk of secondary pollution. © 2025 Elsevier Ltd

关键词： Activated carbon Electro-permanganate Electrochemistry Regeneration

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