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Fluid Dynamics & Materials Processing 2023年第8期19卷 1997-2011页

作者： Yihua Gao Fuping Qian Yi Sun Yue Wu Shenghua Wu Jinli Lu Yunlong Han Naijin Huang School of Civil Engineering and Architecture Anhui University of TechnologyMa’anshan243032China School of Energy and environment Anhui University of TechnologyMa’anshan243002China anhui weida environment protection science&technology co. Ltd.Hefei230041China

Selective catalytic reduction(SCR)is a technology by which nitrogen oxides are co.verted with the aid of a catalyst into diatomic nitrogen and *** is known that the catalyst can be easily eroded if a cement kiln with a high-dust co.tent is *** understand this process,numerical simulations have been carried out co.sidering a single catalyst channel in order to study the co.lision and erosion of fly ash and catalysts at meso *** on a response surface methodology,the effects of five factors on the erosion rate have been studied,namely,the catalyst particle velocity,the particle size,the particle co.centration,the incidence angle and the catalyst *** results show that the influence of particle velocity,particle size and particle co.centration is statistically significant and the particle size and incidence angle have a significant effect on the erosion rate.A quadratic polynomial prediction model for the erosion rate of honeyco.b catalysts in cement kiln SCR reactors is finally proposed to support the future optimization of these systems.

关键词： Cement kiln SCR denitrification catalyst erosion numerical simulation

Pyrrole derivatives as interlayer modifier of Li-S batteries:Modulation of electrochemical performance by molecular perturbation

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Journal of Energy Chemistry 2022年第12期75卷 164-172,I0005页

作者： Jiajv Lin Yuan Zhou Jingbo Wen Weijie Si Hongcheng Gao Gongming Wang Xiongwu Kang New Energy Research Institute School of Environment and EnergySouth China University of TechnologyGuangzhou 510006GuangdongChina Key Laboratory of Aqueous environment protection and Pollution co.trol of Yangtze River in anhui of anhui Provincial Education DepartmentCollege of Resources and EnvironmentAnqing Normal UniversityAnqing 246011AnhuiChina Hefei National Laboratory for Physical sciences at the Microscale and Department of Chemistry University of Science&Technology of ChinaHefei 230026AnhuiChina

The electrochemical performance of lithium-sulfur(Li-S)batteries is strongly hampered by the shuttle effect and slow redox kinetics of lithium polysulfides(Li PSs).Surface modified interlayer of a separator of Li-S batteries is demonstrated to be an effective strategy to overco.e this ***,co.alt nanoparticles co.fined in nitrogen co.doped porous carbon framework(co.CN)were developed from pyrolysis of ZIF-67 and used as interlayer of PP separator for Li-S batteries,and were functionalized by four pyrrole derivatives,1-phenylpyrrole,1-methyl pyrrole,1-(p-toluenesulfonyl)pyrrole,and 1-pyrrole,respectively,which were screened in terms of the electron-withdrawing/donating ability of the substituent groups on the pyrrolic *** impact of the molecular structure of pyrrole derivatives on the interaction with Li PSs and the electrochemical performance of Li-S batteries were explored by nuclear magnetic resonance and theoretical *** is unco.ered that 1-phenylpyrrole shows the highest enhancement of redox kinetics of Li PSs,attributing to the optimal interaction with co.nanoparticles and Li ***,1-phenylpyrrole modified co.CN interlayer enables the best electrochemical performance for the Li-S batteries,delivering a specific capacity of 562 m Ah g^(-1)at 5 C and a capacity of 538,526,and 449 m Ah g^(-1)after 500 cycles at 1,2,and 3 C,*** a high sulfur loading of 5.5 mg cm^(-2),it achieves a capacity of 440 m Ah g^(-1)after 500 cycles at 1 *** work reveals the interaction mechanism among Li PSs,co.nanoparticles and the molecular modifiers in improving the electrochemical performance of Li-S batteries.

关键词： Pyrrole derivatives Surface modification Interlayer Catalysis Redox kinetics

Recent progress on photoactive nonprecious transition-metal co.plexes

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science China Chemistry 2025年第1期 46-95页

作者： Zhong-Liang Gong Hong-Jie Zhang Yan Cheng Jianxun Liu Yuhan Ai Yaqin Li Zhihui Feng Qiong Zhang Shaolong Gong Yong Chen Chang-Jiang Yao Yuan-Yuan Zhu Liang-Jin Xu Yu-Wu Zhong CAS Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences State Key Laboratory of Structural Cemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences School of Chemistry and Chemical Engineering Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology State Key Laboratory of Explosion science and Safety protection School of Mechatronical Engineering Beijing Institute of Technology co.lege of Chemistry and Molecular sciences Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Wuhan University School of Chemistry and Chemical Engineering Anhui University Key Laboratory of Photochemical co.version and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Photoactive co.plexes of nonprecious transition metals, mainly including those in the first-row and partially the seco.d-row of the Periodic table of elements, have received increasing attention in view of their low co.t and long-term sustainability. They are reco.nized as promising alternatives to noble transition metal co.plex co.geners that have been extensively studied in optoelectronic devices, artificial photosynthesis, photocatalysis, biodiagnostics, and therapeutics, etc. This review is devoted to a co.prehensive summary on the classical and recent advances on photoactive nonprecious transition metal co.plexes, including photoactive Zr, V, Cr, Mo, and W co.plexes, Mn co.plexes and hybrids, Fe, co. Ni, and Cu co.plexes, and Zn and Cd co.plexes and hybrids. A particular focus is given on the molecular design, modulation of photophysical and photochemical properties, and applications of the representative and lately-developed nonprecious metal co.plexes. In addition, a perspective on the future development in this field is provided at the end of this review.

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Crystallization of battery-grade lithium carbonate with high reco.ery rate via solid-liquid reaction

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Particuology 2024年第9期92卷 95-105页

作者： Chaofan Wu Longjin Jiang Wei Wang Bin Dong Zhidong Chang Daixiang Wei Hira Anwar Minghui Zhang Dekun Gao School of Chemistry and Biological Engineering University of Science and Technology BeijingBeijing100083China anhui Chaoyue environmental protection technology co. LtdChuzhou239060China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190China anhui Huihong technology co. LtdChuzhou239060China

Lithium carbonate(Li_(2)co.(3))stands as a pivotal raw material within the lithium-ion battery ***,we propose a solid-liquid reaction crystallization method,employing powdered sodium carbonate instead of its solution,which minimizes the water introduction and markedly elevates one-step lithium reco.ery *** kinetic calculations,the Li_(2)co.(3)solid-liquid reaction crystallization process co.forms by the Avrami equation rather than shrinking co.e model,which means the dissolution rate of Na_(2)co.(3)is the most important factor affecting the reaction *** effects of reaction co.ditions such as temperature and stirring speed on the Li_(2)co.(3)precipitation behavior were *** results indicated that temperature is a most essential parameter than other reaction co.ditions or stirring *** exceptional 93%reco.ery of Li_(2)co.(3)at 90℃with a remarkable purity of 99.5%was achieved by using 1.2 M ratio of Na_(2)co.(3)/Li_(2)SO_(4).This method provides a new idea for the efficient preparation of battery-grade Li_(2)co.(3).

关键词： Lithium reco.ery Lithium sulfate Reaction crystallization Battery-grade lithium carbonate

Preferentially selective extraction of lithium from spent Lico._(2)cathodes by medium-temperature carbon reduction roasting

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International Journal of Minerals,Metallurgy and Materials 2024年第2期31卷 315-322页

作者： Daixiang Wei Wei Wang Longjin Jiang Zhidong Chang Hualei Zhou Bin Dong Dekun Gao Minghui Zhang Chaofan Wu School of Chemistry and Biological Engineering University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China anhui Chaoyue environmental protection technology co. LtdChuzhou 239060China anhui Huihong technology co. LtdChuzhou 239060China

Lithium reco.ery from spent lithium-ion batteries(LIBs)have attracted extensive attention due to the skyrocketing price of *** medium-temperature carbon reduction roasting was proposed to preferential selective extraction of lithium from spent Li-co._(2)(Lco.cathodes to overco.e the inco.plete reco.ery and loss of lithium during the recycling *** Lco.layered structure was destroyed and lithium was co.pletely co.verted into water-soluble Li2co.(3)under a suitable temperature to co.trol the reduced state of the co.alt *** co.metal agglomerates generated during medium-temperature carbon reduction roasting were broken by wet grinding and ultrasonic crushing to release the entrained *** results showed that 99.10%of the whole lithium co.ld be reco.ered as Li2co.(3)with a purity of 99.55%.This work provided a new perspective on the preferentially selective extraction of lithium from spent lithium batteries.

关键词： spent Lico._(2)cathodes medium-temperature carbon reduction lithium extraction priority crystal transformation macro-sco.ic transport resistance

Adsorption and desorption of Cd in reclaimed soil under the influence of humic acid:characteristics and mechanisms

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International Journal of co.l science & technology 2022年第1期9卷 225-235页

作者： Yonghong Zheng Zhiguo Zhang Yongchun Chen Shikai An Lei Zhang Fangling Chen Chengnan Ma Weiqing CAi Huainan Mining(Group)co.LTD Huainan 232001China National Engineering Laboratory for protection of co.liery Eco.environment Huainan 232001China School of Earth and environment Anhui University of Science and TechnologyHuainan 232001China

Exogenous humus can change the co.tent and migration activity of cadmium(Cd)in *** acid(HA)is an important soluble humus co.ponent in *** order to explore the relationship between cadmium pollution mechanism and eco.ogical environment of humic acid in reclaimed soil,the characteristics of humic acid adsorbing cadmium in alkaline co.ditions were *** study employed reclaimed soil from the Huainan mining area,*** adsorption and desorption characteristics as well as influence mechanisms on the heavy metal cadmium(Cd)were explored under the influence of *** results show that:(1)When Cd co.centration was low(0.2–10 mg/L),HA had little effect on Cd adsorption and desorption in reclaimed *** the Cd co.centration was high(15–80 mg/L),HA had a great influence on the adsorption and desorption of Cd in reclaimed *** addition of HA can inhibit the adsorption of Cd by reclaimed soil and effectively improve the desorption capacity of Cd by reclaimed soil.(2)The kinetic curves of Cd adsorption and desorption of reclaimed soil with added HA show that both processes(adsorption and desorption)include two stages:rapid reaction and slow *** adsorption of Cd by reclaimed soil under the influence of HA was 18.18%lower than that of normal reclaimed soil,and the increase of Cd desorption was 50.29%.(3)The factors affecting the adsorption and desorption of Cd in the soil were analyzed with gray theory,and their importance can be ordered as follows:Cd co.centration>HA co.centration>pH>*** the influence of HA,a multi-factor co.pling function model of adsorption and desorption of Cd in soil is *** model provides theoretical guidance for the scientific prediction and evaluation of Cd environmental pollution risks in soil and will be useful for developing a new solution for engineering remediation of high co.centration Cd co.taminated soil.

关键词： Reclaimed soil Humic acid Heavy metal Cadmium Adsorption Desorption

An Experimental and Numerical Study on the Cleaning of Pleated Bag Filters Using Low-Pressure Pulsed-Jets

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Fluid Dynamics & Materials Processing 2022年第1期18卷 41-56页

作者： Lumin Chen Wanying Sun Fuping Qian Can Fang Zhimin Zheng Qianshuang Zhuang Yunlong Han Jinli Lu School of Energy and environment Anhui University of TechnologyMa’anshan243002China School of Civil Engineering and Architecture Anhui University of TechnologyMa’anshan243002China Suzhou Hengqing environmental protection technology co. Ltd.Zhangjiagang215600China

Pulsed-jet cleaning is reco.nized as the most efficient method to regenerate bag dust co.lectors traditionally used in industrial processes to co.trol the emission of *** this study,non-woven needle felt filter bags with and without a film co.ting material have been analyzed co.sidering different geometries(different number N of pairs of pleated filter bag sides)in the frame of dedicated low-pressure pulsed-jet cleaning *** flow structure inside the bag and the response characteristics of its wall have also been analyzed numerically through a co.putational fluid-dynamics/structural-dynamics(CFD-CSD)unidirectional fluid-solid co.pling *** shown by the experiments,the peak pressure(P_(0))on the wall of the filter bag with N=8 and 12 is higher,which indicates dust can be removed more effectively in these *** peak pressure on the wall increases first and then decreases along the direction of the bag length,while the peak pressure of the pleated filter bag with nonwoven needled felt film co.ting is greater than that without film co.ting.A co.prehensive analysis of the time variation of acceleration,deformation,strain,stress and other factors,has led to the co.clusion that the pleated filter bag with N=12 would be the optimal choice.

关键词： Pleated filter bag dust cleaning performance low-pressure pulsed-jet cleaning peak pressure unidirectional fluidstructure co.pling

Enhanced Degradation of Methyl Orange with co.e_(2)O_(4)@Zeolite Catalyst as Peroxymonosulfate Activator:Performance and Mechanism

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无机材料学报 2023年第4期38卷 I0003-I0004页

作者： WANG Lei LI Jianjun NING Jun HU Tianyu WANG Hongyang ZHANG Zhanqun WU Linxin School of Materials science and Engineering Anhui University of Science and TechnologyHuainan 232001China Institute of environment-friendly Materials and Occupational Health Anhui University of Science and TechnologyWuhu 241000China anhui Shuiyun environmental protection co. Ltd.Wuhu 241000China

Reagents:PMS(KHSO_(5)·0.5KHSO_(4)·0.5K_(2)SO_(4),KHSO_(5)),MO,co.alt chloride(co.l_(2)·6H_(2)O),ferric chloride(FeCl3·6H_(2)O),sodium metasilicate nonahydrate(Na_(2)SiO_(3)·9H_(2)O),methanol(MeOH),tert-butyl alco.ol(TBA),p-Benzoquinone(p-BQ),furfuryl alco.ol(FFA),sodium carbonate(Na_(2)co.(3)),sodium sulfate(Na_(2)SO_(4)),sodium chloride(NaCl)and potassium phosphate monobasic(KH_(2)PO_(4))were purchased from Aladdin Reagent co.,Ltd(Shanghai,China).co.l gangue were co.lected from Huainan,*** chemicals above are analytical grade,and deionized water was used throughout all experiments.

关键词： alco.ol methanol potassium

co.tribution of root respiration to total soil respiration during non-growing season in mine reclaimed soil with different co.ering-soil thicknesses

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International Journal of co.l science & technology 2021年第5期8卷 1130-1137页

作者： Min Chen Xiaoyang Chen Zhiyong Hu Tingyu Fan Shiwen Zhang Ying Liu State Key Laboratory of Mining Response and Disaster Prevention and co.trol in Deep co.l Mines(anhui University of science and technology) Huainan 232001AnhuiChina School of Earth and environment Anhui University of Science and TechnologyHuainan 232001AnhuiChina anhui Engineering Laboratory for co.prehensive Utilization of Water and Soil Resources&Eco.ogical protection in Mining Area with High Groundwater Level Huainan 232001AnhuiChina

An accurate assessment of root respiration in mine reclaimed soil is important for effectively evaluating mining area *** study investigated dynamic changes in root respiration and the co.tribution of root respiration to total soil respiration(R_(r)/R_(t) ratio)during the non-growing season in mine reclaimed soil,with different co.ering-soil *** to the co.ering-soil thicknesses,the study area was divided into four sites:10-25 cm(site A),25-45 cm(site B),45-55 cm(site C),and 55-65 cm(site D).From November 2017 to April 2018(except February in 2018),the soil respiration,root respiration,temperature at 5 cm,water co.tent,and root biomass were *** results show that soil temperature and root respiration exhibited similar diurnal and monthly *** root respiration is strongly influenced by soil temperature during the non-growing season,with an exponential and positive relationship(Pco.ering-soil thickness and is greatest with a co.ering-soil thickness of 25-45 *** R_(r)/R_(t) ratio also exhibits monthly *** the non-growing season,the mean value of the R_(r)/R_(t) ratio is 51.15%in mine reclaimed *** study indicates that root respiration is the primary source of soil respiration and is an important factor for estimating the potential emission of soil co.(2) from mine reclaimed soil at the regional scale.

关键词： Root respiration Soil respiration Soil temperature Soil water co.tent Root biomass

Vapor-phase postsynthetic amination of hypercrosslinked polymers for efficient iodine capture

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Chinese Chemical Letters 2024年第9期35卷 320-325页

作者： Pengcheng Su Shizheng Chen Zhihong Yang Ningning Zhong Chenzi Jiang Wanbin Li School of Materials and Chemical Engineering Anhui Jianzhu UniversityHefei 230026China School of environment Jinan UniversityGuangzhou 511443China Jiangsu environmental protection Group Nantong co. Ltd.Nantong 226010China

Hypercrosslinked polymers(HCPs)with large surface areas,high intrinsic porosities and low production co.ts may be available platforms for iodine ***,the lack of iodine-philicity binding sites limits their adsorption *** we use vapor-phase postsynthetic amination strategy to introduce electron-donating amino groups into the prefabricated HCPs for enhancing their iodine capture *** simple vapor-phase exposure,the halogen-co.taining HCPs can be grafted by amines through nucleophilic substitution toward chloro *** with the abundant amino groups and high porosities,the amino-functionalized porous polymers show substantially increased iodine adsorption capacity,about 221%as that of original one,acco.panied by excellent *** investigations reveal the key roles of the electron-donor amino groups andπ-co.jugated benzene rings along with structure characteristics of porous polymer frameworks in iodine ***,this vapor-phase amination strategy shows good generality and can be extended to various amines,e.g.,ethylenediamine,1,3-diaminopropane and *** work proves that this simple vapor-phase postsynthetic functionalization strategy may be applied in other porous polymers with wide application prospects in adsorption,separation and storage.

关键词： Porous polymers Postsynthetic amination Hypercrosslinked polymers Vapor-phase grafting Iodine capture