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Performances,mechanisms,and strategies for methane removal via gas biofiltration

Frontiers of environmental Science & engineering 2025年第5期19卷 141-162页

作者： Xin Wu Chunping Yang Yan Lin Xiang Li Shaohua Wu Piotr Rybarczyk Jacek Gebicki Academy of Environmental and Resource Sciences School of Environmental Science and EngineeringGuangdong University of Petrochemical TechnologyMaoming 525000China College of Urban and Environment Sciences Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste ResourcesHunan University of TechnologyZhuzhou 412007China College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control(Hunan University)of Ministry of EducationChangsha 410082China School of Environmental Science and Engineering Hainan UniversityHaikou 570228China College of Chemistry and Chemical Engineering Hunan Normal UniversityChangsha 410081China Department of Process Engineering and Chemical Technology Faculty of ChemistryGdansk University of TechnologyGdansk 80-233Poland

Control of methane emissions has attracted widespread attention in the context of worldwide efforts to alleviate the greenhouse ***,a green and cost-effective treatment process,has been widely used for the purification of ***,there is still a lack of comprehensive information on methane ***,the state-of-the-art development trends of methane removal via biofiltration were comprehensively reviewed and commented *** of all,this article reviewed the mechanisms of methane removal and the possible degradation pathways in ***,the removal characteristics of single methane,methane mixed with volatile organic compounds or gaseous inorganic compounds by biofiltration,were summarized and ***,the practical applications of methane biofiltration were summed up and some inspirations were ***,the effective measures to improve the performance of methane biofiltration were put forward,and corresponding insights and future research directions for methane biofiltration were *** article can provide references for the practical applications of methane biofiltration and the mitigation of greenhouse effects.

关键词： Biofilter Methane VOC Greenhouse effect Carbon reduction

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Multi-strategy combined bionic coating for long-term robust protection against marine biofouling

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材料科学技术（英文版） 2025年第7期210卷 265-277页

作者： Nan Zheng Bo Jia Jie Liu Xiaojun Wang Duo Zhang Hairan Zhang Guoqing Wang Shaanxi Key Laboratory of Catalysis School of Chemical and Environmental ScienceShaanxi University of TechnologyHanzhong 723001PR China State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and EngineeringHainan UniversityHaikou 570228PR China Shaanxi Key Laboratory of Catalysis School of Chemical and Environmental ScienceShaanxi University of TechnologyHanzhong 723001PR China State Key Laboratory of Marine Resource Utilization in South China Sea School of Materials Science and EngineeringHainan UniversityHaikou 570228PR China

Polyurethane-fluorinated polysiloxane(PU-FPDMS)with high-strength,high-bonding and low surface en-ergy is synthesized as the matrix,and the PU-FPDMS/MCs/Ag marine anti-fouling coating on the sur-face of imitation crab shells is constructed by assembling butenolide@1,1-stilbene-modified hydrolyzed polyglycidyl methacrylate/graphene oxide microcapsules(Bu@PGMAm/GO MCs)with compact multi-shell structure and Ag nanoparticles(AgNPs)step by step on the PU-FPDMS *** PU-FPDMS/MCs/Ag bionic anti-fouling coatings achieve long-term and stable anti-fouling effect under the combination of robust low-surface-energy PU-FPDMS matrix,steady-state sustained release of butenolide encapsulated by the compact multi-shell,bionic surface formed by the microcapsules and AgNPs,and the release of Ag+.The shear strength,tensile strength,and elongation at break of the PU-FPDMS/MCs/Ag are 3.53 MPa,6.7 MPa,and 192.83％,*** static contact angle and sliding angle are 161.8° and 3.6°,*** antibacterial rate of PU-FPDMS/MCs/Ag against Escherichia coli,Staphylococcus aureus,and Candida albicans can reach 100％.Compared with glass blank,PU,PU-FPDMS,PU-FPDMS/Ag,and PU-FPDMS/MCs,both the adhesion number and coverage percentage of chlorella adhere to PU-FPDMS/MCs/Ag are the minimum values,which are 600 cell mm-2 and 1.53％,*** 6 months of marine field test,the primer blank,PU,PU-FPDMS all show different degrees of attachment by shellfish,spirorbis,al-gae and other biofouling,while the PU-FPDMS/MCs/Ag coating is still not covered with biofouling,while the PU-FPDMS/MCs/Ag coatings still exhibit little attachment of marine *** PU-FPDMS/MCs/Ag bionic anti-fouling coatings are expected to be widely used in the fields of anti-fouling,anti-icing,anti-fogging,drag reduction,self-cleaning,and antibacterial.

关键词： Marine anti-biofouling Bionic Coating Long-term and stable anti-fouling

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Evolution of the porous structure for phosphoric acid etching carbon as cathodes in Li–O_(2) batteries:Pyrolysis temperature-induced characteristics changes

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Carbon Energy 2024年第1期6卷 172-181页

作者： Feiyang Yang Ying Yao Yunkai Xu Cong Wang Meiling Wang Jingjie Ren Cunzhong Zhang Feng Wu Jun Lu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science and EngineeringBeijing Institute of TechnologyBeijingChina Beijing Institute of Technology Chongqing Innovation Center ChongqingChina College of Chemical and Biological Engineering Zhejiang UniversityHangzhouChina

Although biomass-derived carbon(biochar)has been widely used in the energy field,the relation between the carbonization condition and the physical/chemical property of the product remains ***,we revealed the carbonization condition's effect on the morphology,surface property,and electrochemical performance of the obtained *** open slit pore structure with shower-puff-like nanoparticles can be obtained by finely tuning the carbonization temperature,and its unique pore structure and surface properties enable the Li–O_(2) battery with cycling longevity(221 cycles with 99.8%Coulombic efficiency at 0.2 mA cm^(−2) and controlled discharge–charge depths of 500 mAh g^(−1))and high capacity(16,334 mAh g^(−1) at 0.02 mA cm^(−2)).This work provides a greater understanding of the mechanism of the biochar carbonization procedure under various pyrolysis conditions,paving the way for future study of energy storage devices.

关键词： biomass Li-O_(2) battery oxygen catalysts porous carbon temperature parameters

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Urban stormwater disinfection, quality variability during storage and influence on the freshwater algae: Implications for reuse safety

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Journal of environmental Sciences 2023年第2期124卷 655-666页

作者： Shanshan Fan Gang Wen An Liu College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060China Shaanxi Key Laboratory of Environmental Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Water Science and Environmental Engineering Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060China

Stormwater reuse is one of the most important ways to mitigate water resource ***,urban stormwater contains many bacteria species,which threaten the reuse ***,stormwater disinfection is highly *** disinfection has been widely conducted in the drinking water and reclaimed water,it is rarely carried out for *** study collected the roof stormwater and undertook chlorination *** typical bacteria,Escherichia coli(***)and Staphylococcus aureus(***)were selected in this study to investigate the disinfection *** is found that bacteria species present in the stormwater had an important influence on disinfection efficiency while the original stormwater quality did not show an obvious ***,when the disinfected stormwater was stored,the stormwater quality was highly variable during its storage process and the variability was affected by bacteria *** *** containing stormwater showed a high variability of quality and *** significantly ***,the *** containing stormwater quality had a relatively low variability and *** did not significantly ***,it is noted that after storage,the dissolved form of stormwater was more positive to the freshwater algae’s growth while the particulate form(including bacteria and other particulate matters)was *** implies that a further treatment such as filtration is needed before the stored stormwater is recharged into receiving waters in order to remove particulate *** research outcomes can provide useful insight to effective stormwater disinfection and ensure reuse safety.

关键词： Stormwater quality Stormwater disinfection Stormwater storage Stormwater reuse Escherichia coli Staphylococcus aureus

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An epoxy-based functional coating composed of sulfonated polyaniline, graphene oxide and molybdate: Application in steel corrosion protection

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Journal of Industrial and engineering Chemistry 2025年 148卷 569-582页

作者： Lei, Yu Wang, Siyu Guo, Ruiguang Li, Zhihua Zhu, Weihuang Key Laboratory of Northwest Water Resources Environment and Ecology Ministry of Education Xi'an University of Architecture and Technology Xi'an710055 China Xi'an Key Laboratory of Intelligent Equipment Technology for Environmental Engineering Xi'an University of Architecture and Technology Xi'an710055 China

This study presented an epoxy (EP)-based composite (SPANI/GO/MO@EP) coating designed for steel corrosion protection. The coating, incorporating sulfonated polyaniline (SPANI), graphene oxide (GO), and molybdate (MO), exhibited self-healing and superior anti-corrosion properties. Experimental results showed that the charge transfer resistance (Rct) of the SPANI/GO/MO@EP coating could reach 1.65 × 1010 Ω cm2, which was 2.43 times higher than that of the pristine EP coating, highlighting the enhanced corrosion resistance. Self-healing tests over 72 h showed the fluctuations of Rct value was less than 27 %, confirming the sustained corrosion inhibition. The SPANI/GO/MO@EP coating also exhibited improved hydrophobicity, with enhanced water contact angle (WCA) at 92.31°, correspondingly, the moisture absorption of SPANI/GO/MO@EP coating decreased significantly, limiting the moisture absorption content to only 0.02 % of its mass. Acetic acid salt spray tests confirmed that the SPANI/GO/MO@EP coating significantly reduced corrosion products, delamination, and blister formation. The SPANI/GO/MO@EP coating had the ability to reduce lattice defects in GO and form a protective insoluble film with MO and iron ions which further strengthens the long-term corrosion resistance of Q235 steel. © 2025 The Korean Society of Industrial and engineering Chemistry

关键词： Steel corrosion

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Application of ceria materials modified by oxygen vacancies:In photocatalytic process

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Journal of Rare Earths 2025年第3期43卷 417-429,I0001页

作者： Peng Wang Fang Wang Quansheng Liu Yongxing Zhang Shukun Le Chengzhang Zhu Inner Mongolia Key Laboratory of High-Value Functional Utilization of Low Rank Carbon Resources Chemical Engineering CollegeInner Mongolia University of TechnologyHohhot010050China Department of Chemical and Environmental Engineering Hetao CollegeBayan Nur015000China Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation Huaibei Normal UniversityHuaibei235000China School of Environmental Science and Engineering Nanjing Tech UniversityNanjing210009China Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOEQingdao University of Science and TechnologyQingdao266042China

Cerium-based materials are widely used in various applications such as photocatalytic environmental remediation,CO_(2)photoreduction and photocatalytic hydrogen production due to their unique optical properties and special oxygen vacancy formation *** special external electronic structure of cerium(4f^(1)5d^(1)6s^(2)),the highly electronic 4f orbital,promotes the formation of oxygen vacancies through Ce^(4+)/Ce^(3+)conversion,thereby improving the optical properties of the ***,the application of cerium-based materials in the field of photocatalysis has been of great interest to *** this paper,we briefly review the synthesis of cerium-based photocatalysts and their applications in pollutant removal,CO_(2)reduction,and hydrogen production,as well as their promising applications.

关键词： Cerium-based materials Oxygen vacancy Morphology Photocatalytic application Rare earths

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Enhancing biofilm formation in the hydrogen-based membrane biofilm reactor through bacterial Acyl-homoserine lactones

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Frontiers of environmental Science & engineering 2024年第11期18卷 145-157页

作者： Yuchao Chen Kun Dong Yiming Zhang Junjian Zheng Minmin Jiang Dunqiu Wang Xuehong Zhang Xiaowu Huang Lijie Zhou Haixiang Li College of Environmental Science and Engineering Guilin University of TechnologyGuilin 541006China College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060China College of Life and Environmental Sciences Guilin University of Electronic TechnologyGuilin 541004China Department of Environmental Science and Engineering Guangdong Technion-Israel Institute of TechnologyShantou 515063China Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion Guangdong Technion-Israel Institute of TechnologyShantou 515063China

The slow growth rate of autotrophic bacteria and regulation of biofilm thickness are critical factors that limit the development of a hydrogen-based membrane biofilm reactor(H_(2)-MBfR).The acylhomoserine lactone(AHL)mediated quorum sensing(QS)system is a crucial mechanism regulating biofilm ***,the AHLs that promote biofilm formation in autotrophic denitrification systems and their underlying mechanisms,remain *** study explored the impact of AHLmediated QS signaling molecules on biofilm development in H_(2)-*** study revealed that C_(14)-HSL and C_(4)-HSL are potential signaling molecules that enhanced biofilm formation in long-term stable operating H_(2)-*** short-term experiments with C_(14)-HSL and C_(4)-HSL confirmed their ability to increase bacterial adhesion to carrier surfaces by promoting the production of extracellular polymeric substances(EPS).Functional gene annotation indicated that exogenous C_(14)-HSL and C_(4)-HSL increased the abundance of signal transduction(increased by 0.250%–0.375%),strengthening the inter bacterial QS response while enhancing cell motility(increased by 0.24%and 0.21%,respectively)and biological adhesion(increased by 0.044%and 0.020%,respectively),thereby accelerating the initial bacterial attachment to hollow fiber membranes and facilitating biofilm *** findings contribute to the understanding of microbial community interactions in H_(2)-MBfRs and provide novel approaches for biofilm management in wastewater treatment systems.

关键词： Hydrogen-based membrane biofilm reactor (H2-MBfR) Acyl-homoserine lactones(AHLs) Quorum sensing(QS)Biofilm enhancement

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Simulating the evolution of focused waves by a two-layer Boussinesq-type model

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Acta Oceanologica Sinica 2024年第5期43卷 91-99页

作者： Ping Wang Zhongbo Liu Kezhao Fang Wenfeng Zou Xiangke Dong Jiawen Sun State Environmental Protection Key Laboratory of Marine Ecosystem Restoration National Marine Environmental Monitoring CenterDalian 116023China College of Transportation Engineering Dalian Maritime UniversityDalian 116026China State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116024China

Accurate simulation of the evolution of freak waves by the wave phase focusing method requires accurate linear and nonlinear properties,especially in deep-water *** this paper,we analyze the ability to simulate deep-water focused waves of a two-layer Boussinesq-type(BT)model,which has been shown to have excellent linear and nonlinear *** further improve the numerical accuracy and stability,the internal wavegenerated method is introduced into the two-layer Boussinesq-type ***,the sensitivity of the numerical results to the grid resolution is analyzed to verify the convergence of the model;secondly,the focused wave propagating in two opposite directions is simulated to prove the symmetry of the numerical results and the feasibility of the internal wave-generated method;thirdly,the limiting focused wave condition is simulated to compare and analyze the wave surface and the horizontal velocity of the profile at the focusing position,which is in good agreement with the measured *** the simulation of focused waves in very deep waters agrees well with the measured values,which further demonstrates the capability of the two-layer BT model in simulating focused waves in deep waters.

关键词： focused waves numerical simulation Boussinesq-type model velocity profile

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Visible light-driven oxidation of non-native substrate by laccase attached on Ru-based metal-organic frameworks

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Journal of environmental Sciences 2024年第3期137卷 741-753页

作者： Wenguang Huang Wentao Zhang Guantongyi Chen Yun Chen Jun Ma Dawei Huang Qinzheng Zhaoc Bingdang Wu State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment South China Institute of Environmental SciencesMinistry of Ecology and Environment of PRCGuangzhou 510655China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215002China Key Laboratory of Suzhou Sponge City Technology Suzhou 215002China

Light-induced electron transfer can broaden the substrate range of ***,the efficiency of photo-enzyme coupling is limited by the poor combination of photosensitizer or photocatalyst with ***,we prepared the nano-photocatalyst MIL-125-NH_(2)@Ru(bpy)by in site embedding ruthenium pyridine-diimine complex[Ru(bpy)_(3)^(2+)into metal organic frameworks MIL-125-NH_(2)and associated it with multicopper oxidase(MCO)*** to[Ru(bpy)_(3)]^(2+),the coupling efficiency of MIL-125-NH_(2)@Ru(bpy)_(3)for enzymatic oxygen reduction increased by 35.7%.A series of characterizations confirmed that the amino group of laccase formed chemical bonds with the surface defects or hydrophobic groups of MIL-125-NH_(2)@Ru(bpy)_(3).Consequently,the tight binding accelerated the quenching process and electron transfer between laccase and the immobilized ruthenium pyridine-diimine *** work would open an avenue for the synthesis of MOFs photocatalyst towards photo-enzyme coupling.

关键词： Laccase Light-driven biocatalysis Ruthenium photocatalyst Metal-organic frameworks Enzyme immobilization

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Degradation properties of fulvic acid and its microbially driven mechanism from a partial nitritation bioreactor through multi-spectral and bioinformatic analysis

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Journal of environmental Sciences 2024年第1期135卷 318-331页

作者： Quanhao Dou Li Zhang Tingjun Dong Zixuan Song Xuepeng Fan Yongzhen Peng Xiayan Wang Jiachun Yang National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery EngineeringBeijing University of TechnologyBeijing 100124China Department of Chemistry and Biology Center of Excellence for Environmental Safety and Biological EffectsBeijing Key Laboratory for Green Catalysis and SeparationBeijing University of TechnologyBeijing 100124China Environmental Protection Development Group Co. Ltd.Shandong 250101China

This study employed multispectral techniques to evaluate fulvic acid(FA)compositional characteristic and elucidate its biodegradation mechanisms during partial nitritation(PN)*** showed that FA removal efficiency(FRE)decreased from 90.22 to 23.11%when FA concentrations in the reactor were increased from 0 to 162.30 mg/L,and that molecular size,degree of aromatization and humification of the effluent FA macromolecules all increased after *** population analysis indicated that the proliferation of the Comamonas,OLB12 and Thauera exhibit high FA utilization capacity in lower concentrations(<50.59 mg/L),promoting the degradation and removal of macromolecular *** addition,the sustained increase in external FA may decrease the abundance of above functional microorganisms,resulting in a rapid drop in ***,from the genetic perspective,the elevated FA levels restricted carbohydrate(ko00620,ko00010 and ko00020)and nitrogen(HAO,AMO,NIR and NOR)metabolism-related pathways,thereby impeding FA removal and total nitrogen loss associated with N_(2)O emissions.

关键词： Partial nitritation Fulvic acid 3DEEM-PARAFAC UV/Vis Microbially driven mechanism

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