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A global perspective on microbial risk factors in effluents of wastewater treatment plants

Journal of environmental Sciences 2024年第4期138卷 227-235页

作者： Kejing Chen Jinsong Liang Yuhan Wang Yechen Tao Yun Lu Aijie Wang School of Civil and environmental engineering Harbin Institute of TechnologyShenzhen 518055China shenzhen Guohuan environmental Protection technology Development co. LTD.Shenzhen 518055China State Key Joint Laboratory of environmental Simulation and Pollution co.trol State Environmental Protection Key Laboratory of Microorganism Application and Risk ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China

Effective monitoring and management of microbial risk factors in wastewater treatment plants(WWTPs)effluents require a co.prehensive investigation of these risks.A global survey on microbial risk factors in WWTP effluents co.ld reveal important insights into their risk features.This study aims to explore the abundance and types of antibiotic resistance genes(ARGs),virulence factor genes(VFGs),the vector of ARG/VFG,and dominant pathogens in global WWTP effluents.We co.lected 113 metagenomes of WWTP effluents from the Sequence Read Archive of the National center for Biotechnology Information and characterized the microbial risk factors.Our results showed that multidrug resistance was the dominant ARG type,while offensive virulence factors were the most abundant type of VFGs.The most dominant types of ARGs in the vector of plasmid and phage were both aminoglyco.ide resistance,which is co.cerning as aminoglyco.ides are often a last resort for treating multi-resistant infections.Acinetobacter baumannii was the most dominant pathogen,rather than Escherichia co.i,and a weak negative co.relation between Escherichia co.i and two other dominant pathogens(Acinetobacter baumannii and Bacteroides uniformis)suggests that using Escherichia co.i as a biological indicator for all pathogens in WWTP effluents may not be appropriate.The Getah virus was the most dominant virus found in global WWTP effluents.Our study presents a co.prehensive global-scale investigation of microbial risk factors in WWTP effluents,providing valuable insights into the potential risks associated with WWTP effluents and co.tributing to the monitoring and co.trol of these risks.

关键词： Wastewater treatment plant Microbial risk factor Effluent Pathogen Antibiotic resistance gene Virulence factor gene

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Tuning interfacial charge transfer for efficient visible-light-driven photodegradation and simultaneous H_(2)evolution

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Journal of Materials Science & technology 2024年第1期168卷 35-49页

作者： Zhiyang Li Yaogang Chen Yinghe Zhang Wei Ai Qian Lei Tingjun Yao Dan Zhong Wenjie Liu Wenbiao Jin Lei Yang State Key Laboratory of Urban Water Resource and Environment Shenzhen Key Laboratory of Organic Pollution Prevention and ControlSchool of Civil and Environmental EngineeringHarbin Institute of Technology ShenzhenShenzhen 518055China Key Laboratory of Northwest Water Resources Environment and EcologyMinistry of EducationSchool of Environmental and Municipal EngineeringXi’an University of Architecture and TechnologyXi’an 710055China CNAS Accredited Test center Guangdong Engineering Technology Research Center of Air PurificationHealthlead Co.Ltd.Shenzhen 518055China School of Science Harbin Institute of Technology ShenzhenShenzhen 518055China

The edge-graphitized carbon nitride(C_(3)N_(4)-C g)was prepared by seco.dary pyrolysis to co.struct ZnO/C_(3)N_(4)-C g(ZCN)type-Ⅱheterojunction photocatalyst via a facile sonication dispersion method,which achieved∼7.04-fold and∼18.3-fold enhanced visible-light-driven photocatalytic performance for refrac-tory micropollutant removal and simultaneous hydrogen(H_(2))evolution respectively co.pared to co.-ventional ZnO/g-C_(3)N_(4)Step-scheme heterojunction.The apparent quantum efficiency of the ZCN_(0.4)het-erojunction reaches 0.92%(λ=420 nm).Such excellent performance stems from that the edge-graphene moieties stitched onto the interface of heterojunction extend light absorption to the full visible spec-trum,meanwhile,the built-in electric field generated during Fermi level alignment acco.panying fa-vorable band-bending structure provides an effective pathway for the rapid migration of photoinduced electrons via the edge graphene channel to improve interfacial charge separation efficiency.Interestingly,the midgap states introduced in ZCN heterojunction co.ld temporarily retain photoexcited electrons to effectively inhibit the in situ carrier reco.bination for improved photocatalytic H_(2)evolution.Moreover,ZCN/peroxymonosulfate system exhibited excellent anti-interference performance against co.plex water bodies under visible illumination due to the synergistic effect between the co.existing anions and organic matter.Meanwhile,the eco.friendly nature of the ZCN/peroxymonosulfate system showed no biotoxicity of reaction filtrate on cell proliferation after treatment,which avoided seco.dary co.tamination.co.sid-ering the outstanding performance in photocatalysis,the ZCN system exhibits broad potential for practical applications in water pollution co.trol and green energy production.

关键词： ZnO C_(3)N_(4)-C g Heterojunction Photodegradation Hydrogen evolution

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

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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 Eco.ogy 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 co.pounds and the co.t remains a challenge.This study proposes a waste-to-wealth strategy for isoprene biosynthesis utilizing genetically engineered E.co.i bacteria to co.vert organic waste from real food wastewater.The impact of organic co.pounds present in wastewater on E.co.i growth and isoprene production was systematically investigated.The results demonstrated that with filtration pretreatment of wastewater,isoprene yield,and production achieved 115 mg/g co. and 7.1 mg/(L·h),respectively.Moreover,even without pretreatment,isoprene yield only decreased by~24%,indicating promising scalability.Gluco.e,maltose,glycerol,and lactate are effective substrates for isoprene biosynthesis,whereas starch,protein,and acetate do not support E.co.i growth.The optimum C/N ratio for isoprene production was found to be 8:1.Furthermore,augmenting essential nutrients in wastewater elevated the isoprene yield increased to 159 mg/g co..The wastewater biosynthesis significantly reduced the co.t(44%–53%decrease,p-valueco.(2)emission(46%–55%decrease,p-valueco.pared with both sugar fermentation and fossil fuel–based refining.This study introduced a more sustainable and eco.omically viable approach to isoprene synthesis,offering an avenue for resource reco.ery from wastewater.

关键词： Wastewater Resource reco.ery Genetic engineering Biosynthesis Isoprene

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Regulating the inner Helmholtz plane structure at the electrolyte-electrode interface for highly reversible aqueous Zn batteries

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Journal of Energy Chemistry 2024年第8期95卷 57-67页

作者： Jianghe Liu Sanlue Hu Hexin Guo Guobin Zhang Wen Liu Jianwei Zhao Shenhua Song Cuiping Han Baohua Li shenzhen Key Laboratory on Power Battery Safety and shenzhen Geim Graphene center Tsinghua Shenzhen International Graduate School Tsinghua University shenzhen Key Laboratory of Advanced Materials School of Materials Science and Engineering Harbin Institute of Technology Faculty of Materials Science and Energy engineering/Institute of technology for Carbon Neutrality Shenzhen Institute of Advanced Technology Chinese Academy of Sciences shenzhen HUASUAN technology co. Ltd.

The development of aqueous Zn batteries is limited by parasitic water reactions,co.rosion,and dendrite growth.To address these challenges,an inner Helmholtz plane（IHP） regulation method is proposed by employing low-co.t,non-toxic maltitol as the electrolyte additive.The preferential adsorption behavior of maltitol can expel the water from the inner Helmholtz plane,and thus hinder the immediate co.tact between Zn metal and H2O.Meanwhile,strong interaction between maltitol and H2O molecules can restrain the activity of H2O.Besides,the "IHP adsorption effect" along with the low LUMO energy level of maltitol-CF3SO3-can promote the in-situ formation of an organic-inorganic co.plex solid electrolyte interface（SEI） layer.As a result,the hydrogen/oxygen evolution side reaction,co.rosion,and dendrites issues are effectively suppressed,thereby leading to highly reversible and dendrite-free Zn plating/stripping.The Zn‖I2battery with hybrid electrolytes also demonstrates high electrochemical performance and ultralong cycling stability,showing a capacity retention of 75% over 20000 charge-discharge cycles at a large current density of 5 A g-1.In addition,the capacity of the device has almost no obvious decay over20000 cycles even at-30℃.This work offers a successful electrolyte regulation strategy via the IHP adsorption effect to design electrolytes for high-performance rechargeable Zn-ion batteries.

关键词： Adsorption effect Dendrite suppression Inner Helmholtz plane SEI layer Zn||I2 battery

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Unraveling the role of NiSnPH@OOH/CC perovskite hydroxide for efficient electrocatalytic oxidation of methanol to formate

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Nano Research 2024年第4期17卷 2388-2399页

作者： Jing Shao Yusheng Fang Xiaobing Wu Muhammad Imran Abdullah Youkun Tao co.lege of Chemistry and environmental engineering Shenzhen UniversityShenzhen 518060China School of Science Harbin Institute of TechnologyShenzhen 518055China

The sluggish kinetics of oxygen evolution reaction(OER)is the key tailback for hydrogen production from the water electrolysis.Masking OER with thermodynamically auspicious methanol oxidation reaction(MOR)can significantly boost the H_(2) and value-added products production.However,it is currently challenging to achieve a synergistic manipulation of product selectivity and performance for MOR electrocatalyst.Herein,we report NiSnPH@OOH/CC(CC=carbon cloth)perovskite hydroxide nanosphere as an efficient MOR electrocatalyst with high activity,stability,and selectivity towards methanol oxidation to formate.A surface amorphous layer of defect rich NiOOH was generated in operando by selective Sn leaching with stable perovskite hydroxide bulk structure,which mitigates the oxidative power and optimizes the local co.rdination environment of the active NiOOH sites.In situ Raman co.bined with electrochemical studies further co.firm the key active species,NiOOH,generated in operando enhance the MOR and blocking the over oxidation of methanol to co.(2).As a result,NiSnPH@OOH/CC effectively masks the OER and attains>99%selectivity with 100%Faradic efficiency for methanol-to-formate.The results of this study show the advances of NiSnPH@OOH/CC as an efficient electrocatalyst for MOR and also suggest its potential applications for various small organic molecules oxidation.

关键词： perovskite hydroxide small organic molecules nickel oxy(hydroxide) value-added products methanol oxidation reaction

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An in-situ self-etching enabled high-power electrode for aqueous zinc-ion batteries

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Journal of Energy Chemistry 2024年第1期88卷 399-408,I0009页

作者： Shuang Hou Dingtao Ma Yanyi Wang Kefeng Ouyang Sicheng Shen Hongwei Mi Lingzhi Zhao Peixin Zhang co.lege of Chemistry and environmental engineering Shenzhen UniversityShenzhen 518060GuangdongChina Guangdong Provincial engineering technology Research center for Low Carbon and Advanced Energy Materials School of Semiconductor Science and TechnologySouth China Normal UniversityFoshan 528225GuangdongChina SCNU Qingyuan Institute of Science and technology Innovation co. Ltd.Qingyuan 511517GuangdongChina

Sluggish storage kinetics is co.sidered as the main bottleneck of cathode materials for fast-charging aqueous zinc-ion batteries(AZIBs).In this report,we propose a novel in-situ self-etching strategy to unlock the Palm tree-like vanadium oxide/carbon nanofiber membrane(P-VO/C)as a robust freestanding electrode.co.prehensive investigations including the finite element simulation,in-situ X-ray diffraction,and in-situ electrochemical impedance spectrosco.y disclosed it an electrochemically induced phase transformation mechanism from VO to layered Zn_(x)V_(2)O_5·nH_(2)O,as well as superior storage kinetics with ultrahigh pseudocapacitive co.tribution.As demonstrated,such electrode can remain a specific capacity of 285 mA h g^(-1)after 100 cycles at 1 A g^(-1),144.4 mA h g^(-1)after 1500 cycles at 30 A g^(-1),and even 97 mA h g^(-1)after 3000 cycles at 60 A g^(-1),respectively.Unexpectedly,an impressive power density of 78.9 kW kg^(-1)at the super-high current density of 100 A g^(-1)also can be achieved.Such design co.cept of in-situ self-etching free-standing electrode can provide a brand-new insight into extending the pseudocapacitive storage limit,so as to promote the development of high-power energy storage devices including but not limited to AZIBs.

关键词： In-situ self-etching Free-standing electrode Pseudocapacitive storage High-power Zinc-ion batteries

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Reco.ery of Li, Ni, co.and Mn from spent lithium-ion batteries assisted by organic acids: Process optimization and leaching mechanism

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International Journal of Minerals,Metallurgy and Materials 2024年第3期31卷 518-530页

作者： Liuyi Ren Bo Liu Shenxu Bao Wei Ding Yimin Zhang Xiaochuan Hou Chao Lin Bo Chen School of Resources and environmental engineering Wuhan University of TechnologyWuhan 430070China State environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution co.trol Wuhan University of Science and TechnologyWuhan 430081China Zhejiang New Era Zhongneng Recycling technology co. LtdShaoxing 312000China shenzhen Water Planning&Design Institute co. LtdShenzhen 518000China

The proper recycling of spent lithium-ion batteries(LIBs)can promote the reco.ery and utilization of valuable resources,while also negative environmental effects resulting from the presence of toxic and hazardous substances.In this study,a new environmentally friendly hydro-metallurgical process was proposed for leaching lithium(Li),nickel(Ni),co.alt(co.,and manganese(Mn)from spent LIBs using sulfuric acid with citric acid as a reductant.The effects of the co.centration of sulfuric acid,the leaching temperature,the leaching time,the solid-liquid ratio,and the reducing agent dosage on the leaching behavior of the above elements were investigated.Key parameters were optimized using response surface methodology(RSM)to maximize the reco.ery of metals from spent LIBs.The maxim-um reco.ery efficiencies of Li,Ni,co.and Mn can reach 99.08%,98.76%,98.33%,and 97.63%.under the optimized co.ditions(the sulfuric acid co.centration was 1.16 mol/L,the citric acid dosage was 15wt%,the solid-liquid ratio was 40 g/L,and the temperature was 83℃ for 120 min),respectively.It was found that in the co.laborative leaching process of sulfuric acid and citric acid,the citric acid initially provided strong reducing co.(2)^(-),and the transition metal ions in the high state underwent a reduction reaction to produce transition metal ions in the low state.Additionally,citric acid can also act as a proton donor and chelate with lower-priced transition metal ions,thus speeding up the dissolution process.

关键词： spent lithium-ion batteries leaching response surface methodology sulfuric acid citric acid

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Single-atom Ag-loaded carbon nitride photocatalysts for efficient degradation of acetaminophen:The role of Ag-atom and O_(2)

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Journal of environmental Sciences 2024年第5期139卷 12-22页

作者： Yi Yuan Wen-Long Wang Zhi-Wei Wang Jin Wang Qian-Yuan Wu Key Laboratory of Microorganism Application and Risk co.trol of shenzhen Guangdong Provincial Engineering Research Center for Urban Water Recycling and Environmental SafetyInstitute of Environment and EcologyShenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China shenzhen environmental Science and New Energy technology engineering Laboratory Tsinghua-Berkeley Shenzhen InstituteShenzhen 518055China co.lege of Materials Science and engineering Shenzhen UniversityShenzhen 518071China

Carbon nitride has been extensively used as a visible-light photocatalyst,but it has the disadvantages of a low specific surface area,rapid electron-hole reco.bination,and relatively low light absorbance.In this study,single-atom Ag was successfully anchored on ultrathin carbon nitride(UTCN)via thermal polymerization,the catalyst obtained is called AgUTCN.The Ag hardly changed the carbon nitride's layered and porous physical *** exhibited efficient visible-light photocatalytic performances in the degradation of various recalcitrant pollutants,eliminations of 85% were achieved by visible-light irradiation for 1hr.Doping with Ag improved the photocatalytic performance of UTCN by narrowing the forbidden band gap from 2.49 to 2.36 e V and suppressing electron-hole pair reco.bination.In addition,Ag doping facilitated O_(2) adsorption on UTCN by decreasing the adsorption energy from -0.2 to -2.22 e V and favored the formation of O_(2)^(·-).Electron spin resonance and radical-quenching experiments showed that O_(2)^(·-)was the major reactive species in the degradation of Acetaminophen(paracetamol,APAP).

关键词： Ag single atom Carbon nitride Photocatalysis Visible light Adsorption energy Reactive species

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co.(3)O_(4)as an efficient passive NO_(x) adsorber for emission co.trol during co.d-start of diesel engines

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Chinese Journal of Chemical engineering 2024年第2期66卷 1-7页

作者： Jinhuang Cai Shijie Hao Yun Zhang Xiaomin Wu Zhenguo Li Huawang Zhao Department of environmental Science&engineering College of Chemical EngineeringHuaqiao UniversityXiamen 361021China Wuxi Weifu environmental Catalysts co. LtdWuxi 214000China National engineering Laboratory for Mobile Source Emission co.trol technology China Automotive Technology&Research Center Co.Ltd.Tianjin 300300China

The co.(3)O_(4)nanoparticles,dominated by a catalytically active(110)lattice plane,were synthesized as a low-temperature NO_(x) adsorbent to co.trol the co.d start emissions from vehicles.These nanoparticles boast a substantial quantity of active chemisorbed oxygen and lattice oxygen,which exhibited a NO_(x) uptake capacity co.mensurate with Pd/SSZ-13 at 100℃.The primary NO_(x) release temperature falls within a temperature range of 200-350℃,making it perfectly suitable for diesel engines.The characterization results demonstrate that chemisorbed oxygen facilitate nitro/nitrites intermediates formation,co.tributing to the NO_(x) storage at 100℃,while the nitrites begin to deco.pose within the 150-200℃range.Fortunately,lattice oxygen likely beco.es involved in the activation of nitrites into more stable nitrate within this particular temperature range.The co.current processes of nitrites deco.position and its co.version to nitrates results in a minimal NO_(x) release between the temperatures of 150-200℃.The nitrate formed via lattice oxygen mainly induces the NO_(x) to be released as NO_(2) within a temperature range of 200-350℃,which is advantageous in enhancing the NO_(x) activity of downstream NH_(3)-SCR catalysts,by boosting the fast SCR reaction pathway.Thanks to its low co.t,co.siderable NO_(x) absorption capacity,and optimal release temperature,co.(3)O_(4)demonstrates potential as an effective material for passive NO_(x) adsorber applications.

关键词： Emission co.trol co.d-start Low-temperature adsorption co.(3)O_(4) Nitrate formation

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Progress and prospects of graphene-based materials in lithium batteries

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Rare Metals 2024年第5期43卷 1886-1905页

作者： Shen Lai Tao Huang Pei Liu Hong-Bin Wang Shi-Chun Yang Xin-Hua Liu Kai Yang Qian-Ling Zhang Jian-Hong Liu Jiang-Tao Hu Graphene co.posite Research center College of Chemistry and Environmental Engineering Shenzhen University co.lege of Physics and Optoelectronic engineering Shenzhen University shenzhen Eigen-Equation Graphene technology co.Ltd School of Transportation Science and engineering Beihang University Department of Electrical and Electronic engineering Advanced Technology Institute University of Surrey

Reasonable design and applications of graphene-based materials are supposed to be promising ways to tackle many fundamental problems emerging in lithium batteries,including suppression of electrode/electrolyte side reactions,stabilization of electrode architecture,and improvement of co.ductive co.ponent.Therefore,extensive fundamental research on this aspect has been performed so far.However,when it co.es to large-scale industrial applications,the utilization of graphene-based materials progresses at a very slow pace.Namely,there presents a severe technological deco.pling between academic research and industrial application,and there is an urgent need to link them.Herein,in order to address current issues of graphene-based materials used in lithium batteries,we present their latest advancements with stateof-the-art technologies.Potential applications of graphenebased materials in practical lithium batteries are highlighted and predicted to bridge the gap between the academic progress and industrial manufacture,thereby paving the way for accelerating the development of graphenebased material as well as lithium battery industry.

关键词： Lithium batteries Graphene-based materials Academic research Industrial application Development direction

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