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Chinese Journal of Chemical engineering 2024年第3期67卷 78-88页

作者： Ming Zhou Mengrong Wu Haiwei Yu Xiangjun Zheng Kuan Shen Xingmei Guo Yuanjun Liu Fu Cao Hongxing Gu Qinghong Kong Junhao Zhang School of environmental and Chemical engineering Jiangsu University of Science and TechnologyZhenjiang 212003China jiangsu Hengshen co. LtdZhenjiang 212314China School of the Environment and Safety engineering Jiangsu UniversityZhenjiang 212013China

To address the low co.ductivity and easy agglomeration of transition metal sulfide nanoparticles,Feco._(4) nanoparticles embedded in S-doped hollow carbon(Feco._(4)@S-HC)co.posites were successfully fabricated through a co.bination of hydrothermal processes and sulfidation *** unique bowlshaped Feco._(4)/S-HC co.posites exhibit excellent structural stability with a high specific surface area of 303.7 m^(2)·g^(-1) and a pore volume of 0.93 cm^(3)·g^(-1).When applied as anode material for lithium-ion batteries,the Feco._(4)@S-HC anode exhibits efficient lithium storage with high reversible specific capacity(970.2 mA·h·g^(-1) at 100 mA·g^(-1))and enhanced cycling stability(574 mA·h·g^(-1) at 0.2 A·g^(-1) after 350 cycles,a capacity retention of 84%).The excellent lithium storage is attributed to the fact that the bimetallic Feco._(4) nanoparticles with abundant active sites can accelerate the electrochemical reaction kinetics,and the bowl-shaped S-HC structure can provide a stable mechanical structure to suppress volume expansion.

关键词： Bimetallic sulfides Bowl-shaped hollow carbon S doping Buffering volume expand Lithium-ion batteries

Photothermal catalytic C-C co.pling to ethylene from co.(2) with high efficiency by synergistic co.peration of oxygen vacancy and half-metallic WTe_(2)

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Journal of Energy Chemistry 2024年第6期93卷 547-556,I0014页

作者： Xiaoyue Zhang Yong Yang Yingjie Hu Lijun Xiong Tianyu Wang Panjie Li Jinyou Shen Key Laboratory of environmental Remediation and Eco.ogical Health Ministry of Industry and Information TechnologySchool of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094JiangsuChina School of Chemistry and Chemical engineering Nanjing University of Science and TechnologyNanjing 210094JiangsuChina Nanjing Key Laboratory of Advanced Functional Materials Nanjing Xiaozhuang UniversityNanjing 210094JiangsuChina jiangsu environmental engineering technology co.Ltd Nanjing 210019JiangsuChina

Photothermal catalytic co.(2) co.version provides an effective solution targeting carbon neutrality by synergistic utilization of photon and ***,the C-C co.pling initiated by photothermal catalysis is still a big ***,a three-dimensional(3D)hierarchical W_(18)O_(49)/WTe_(2) hollow nanosphere is co.structed through in-situ embodying of oxygen vacancy and tellurium on the scaffold of WO_(3).The light absorption towards near-infrared spectral region and co.(2) adsorption are enhanced by the formation of half-metal WTe_(2) and the unique hierarchical hollow *** with the generation of oxygen vacancy with strengthened co.(2) capture,the photothermal effect on the samples can be sufficiently exploited for activating the co.(2) *** particular,the close co.tact between W_(18)O_(49)and WTe_(2) largely promotes the photoinduced charge separation and mass transfer,and thus the~*CHO intermediate formation and fixedness are *** a result,the C-C co.pling can be evoked between tungsten and tellurium atoms on WTe_(2).The ethylene production by optimized W_(18)O_(49)/WTe_(2) reaches 147.6μmol g^(-1)with the selectivity of 80%.The in-situ diffuse reflectance infrared Fourier transform spectrosco.y(DRIFTS)and density functional theory(DFT)calculations are performed to unveil the presence and significance of aldehyde intermediate groups in C-C *** half-metallic WTe_(2) co.atalyst proposes a new approach for efficient co.(2) co.version with solar energy,and may especially create a new platform for the generation of multi-carbon products.

关键词： Photothermal catalysis Half-metal WTe_(2) C–C co.pling Carbon neutrality

Progress on gas-solid phase photoreactor and its application in co. reduction

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Green Chemical engineering 2024年第3期5卷 290-306页

作者： Litian Liu Yunlong Li Jialun He Qing Wang Juan Deng Xiao Chen Chao Yu School of environmental and Chemical engineering Jiangsu University of Science and Technology

The burgeoning field of photocatalytic reduction of co.has emerged as a remarkable promising solution to address some of the most pressing global energy and environmental issues which we face today. Researchers around the global have been striving to augment the efficiency of co.photocatalytic reduction, employing strategies that range from modifying the fundamental properties of photocatalysts to suppress the electron-hole reco.bination, optimizing reaction co.ditions to achieve the highest yield, and co.ceptualizing and co.structing photoreactors to improve the adsorption process. Among these factors, the photoreactor plays a critical role in enhancing the overall photocatalytic efficiency. Understanding the various types of photoreactors and their operational dynamic can significantly influence the experimental design, thus guiding the data co.lecting and analysis. co.pared to the solid-liquid phase, gas-solid phase photocatalytic reduction of co.is gaining reco.nition for its potential advantages, such as rapid molecular diffusion rates, adjustable co.co.centrations, and uniform and sufficient light exposure. Nonetheless, the currently reported gas-solid phase photoreactors are still in their infancy. In this review, we dissect the underlying mechanism of photocatalytic co.reduction and the performance evaluation criteria of photoreactors, and review the development process of gas-solid phase photoreactors. Furthermore, we explore the evolution of gas-solid phase photoreactors, elucidating their growth trajectory and future possibilities. We present a co.prehensive classification of gas-solid phase photoreactors,offering a new insight into their design and functionality, summarizing their strengths and inevitable ***, we provide a forward-looking perspective on the future developmental prospects of carbon neutrality.

关键词： Photoreactor Gas-solid phase Carbon dioxide reduction Photocatalysis

Effect of surfactant frequently used in soil flushing on oxygen mass transfer in micro-nano-bubble aeration system

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Chinese Journal of Chemical engineering 2024年第3期67卷 174-181页

作者： Mei Bai Zhibin Liu Zhu Liu Chenfei He Zhanhuang Fan Miaoxin Yuan jiangsu Key Laboratory of Urban Underground engineering and environmental Safety Southeast UniversityNanjing 211189China CECEP DADI(Hangzhou)environmental Remediation co. Ltd.Hangzhou 310020China

In-site soil flushing and aeration are the typical synergetic remediation technology for co.taminated *** surfactant present in flushing solutions is bound to affect the aeration *** purpose of this study is to evaluate the effect of surfactant frequently used in soil flushing on the oxygen mass transfer in micro-nano-bubble(MNB)aeration ***,bio-surfactants and chemical surfactants were used to investigate their effects on Sauter mean diameter of bubble(dBS),gas holdup(ε),volumetric mass-transfer co.fficient(kLa)and liquid-side mass-transfer co.fficient(kL)in the MNB aeration ***,based upon the experimental results,the Sardeing's and Frossling's models were modified to describe the effect of surfactant on kL in the MNB *** results showed that,for the twenty aqueous surfactant solutions,with the increase in surfactant co.centration,the value of dBS,kLa and kL decreased,while the value ofεand gas-liquid interfacial area(a)*** phenomena were mainly attributed to the synergistic effects of immobile bubble surface and the suppression of co.lescence in the surfactant *** addition,with the presence of electric charge,MNBs in anionic surfactant solutions were smaller and higher in number than in non-ionic surfactant ***,the accumulation of surfactant on the gas-liquid interface was more co.spicuous for small MNB,so the reduction of kL in anionic surfactant solutions was larger than that in non-ionic surfactant ***,the modified Frossling's model predicted the effect of surfactant on kL in MNB aeration system with reasonable accuracy.

关键词： Soil flushing Micro-nano-bubble aeration Bio-surfactant Mass transfer co.fficient

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 *** 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 *** 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℃***,lattice oxygen likely beco.es involved in the activation of nitrites into more stable nitrate within this particular temperature *** 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 *** 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

co.structing co.e@shell structured photothermal nanosphere with thin carbon layer co.fined co.Mn bimetals for pollutant degradation and solar interfacial water evaporation

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Rare Metals 2024年第4期43卷 1686-1701页

作者： Hong-Yang Zhu Meng-Ting Liu Gang Wang Rong-Rong Du Hong-Yao Zhao Hao Lu Shi-Qi Yang Sheng Tang Zeng-Jing Guo Jun Yang Cheng-Zhang Zhu Fu Yang School of environmental and Chemical engineering Jiangsu University of Science and TechnologyZhenjiang212003China School of Chemistry and Chemical engineering Liaocheng UniversityLiaocheng252000China School of Material Science and engineering Jiangsu University of Science and TechnologyZhenjiang212003China School of environmental Science and engineering Nanjing Tech UniversityNanjing210009China

Photothermal material applied in environmental governance has attracted growing *** co.bining the Stober method and dopamine-triggered co.ting strategy,co.Mn precursor was in situ inco.porated into the poly dopamine(PDA)layer over the surface of silica ***,a unique photothermal nanosphere with SiO_(2)co.e and thin carbon layer and dual co.Mn oxides shell was allowed to form by sequential heat treatment in the inert atmosphere(SiO_(2)@co.n/C).The bimetallic fraction of co.Mn in the carbon layer and post-treatment calcination temperature was co.prehensively tuned to optimize the peroxymonosulfate(PMS)activation performance of the *** state of bimetallic species was studied including their physical distribution,chemical valence,and interplay by various ***,co.oxides appear as dominant monodispersed nanoparticles(~10 nm),while Mn with cluster-like morphology is observed to uniformly distribute over thin-layer carbon and adhered to the surface of SiO_(2)nanospheres(~250 nm).The calcined temperature co.ld tune the oxidized state of co.species,leading to the optimization of the catalytic performance of introduced dual metal *** a result,this obtained optimal catalyst integrated the advantages of exposed bimetallic co.n species and N-doped thin carbon to deliver excellent catalytic PMS activation performance and photothermal synergetic catalytic mineralization ability for diversiform *** reactions co.dition co.trols and anion interference studies were co.ducted to identify the adaptability of the optimal ***,the application of solar-driven interfacial water evaporation using optimal SiO_(2)@co.3Mn_1/C-600 catalyst was explored,showing a high water evaporation rate of 1.48 kg·m^(-2)·h^(-1)and an efficiency of 95.2%,further revealing a co.prehensive governance functionality of obtained material in the co.plex pollution co.dition.

关键词： Photothermal Peroxymonosulfate(PMS)activation Bimetallic synergy Water evaporation Advanced oxidation process

co.pling N-doping and co.fined co.(3)O_(4) on carbon nanotubes by polydopamine co.ting strategy for pleiotropic water purification

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Rare Metals 2024年第7期43卷 3146-3160页

作者： Wen-Long Tu Gang Wang Yue Zhang Hong-Yang Zhu Rong-Rong Du Hong-Yao Zhao Sheng Tang Zeng-Jing Guo Jun Yang Fu Yang Cheng-Zhang Zhu School of environmental and Chemical engineering Jiangsu University of Science and TechnologyZhenjiang 212003China School of Chemistry and Chemical engineering Liaocheng UniversityLiaocheng 252000China School of Material Science and engineering Jiangsu University of Science and TechnologyZhenjiang 212003China School of environmental Science and engineering Nanjing Tech UniversityNanjing 211816China

The development of effective and sustainable solutions for pleiotropic water purification beco.es urgent and *** Fenton-like catalysts for activation of peroxymonosulfate(PMS)to purify organic wastewater show great *** this work,by tuning metal loading with an in-situ polydopamine co.ting strategy,oxygen vacancy-enriched co.(3)O_(4) loading on N-doped carbon nanotubes(CNTs)were co.structed to enhance PMS activation efficiency for pollutants ***,the obtained modified CNTs afford a well-developed N-co.taining network structure,which is further endowed with abundant co.Ⅱ)/co.Ⅲ)redox cycles and significant metal-carbon *** particular,the surface N doping in CNTs might induce the oriented enrichment of pollutants around the catalyst,which reduces the migration distance and co.respondingly improves the utilization of reactive oxidative *** electron transfer efficiency of the catalyst can be further improved by inco.porating oxygen vacancy-enriched co.(3)O_(4).The performance results show that the optimal NC/co.1 co.ld mineralize 20×10^(-6)of bisphenol A(BPA)by almost 98%in 8 min.A low reaction activation energy(26.05 kJ·mol^(-1))in BPA degradation was demonstrated by the NC/*** importantly,NC/co.1 can inherit excellent degradation performance towards oxytetracycline,2,4-dichlorophenol,and tetracycline,showing wide practical *** addition,by virtue of the photothermal co.version property,NC/co.1 achieves an additive function for interfacial solar water evaporation(1.84 kg·m^(-2)·h^(-1),112.51%),showing impressive potential for clean water reco.ery under co.plicated environmental pollution co.ditions.

关键词： Carbon nanotube Advanced oxidation process co.(3)O_(4) Photothermal co.version Solar water evaporation

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

Green synthesis of ZSM-5 using silica fume and catalytic co.cracking of lignin and plastics for production of monocyclic aromatics

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Chinese Journal of Chemical engineering 2024年第1期65卷 92-105页

作者： Hongbing Fu Yufei Gu Tianhua Gao Fuwei Li Hengshuo Gu Hucheng Ge Yuke Liu Zhixia Li Hongfei Lin Jiangfei Cao School of Chemistry and Chemical engineering Guangxi UniversityNanning 530004China Guangxi Bossco.environmental Protection technology co. Ltd.Nanning 530007China School of environmental and Chemical engineering Zhaoqing UniversityZhaoqing 526000China

ZSM-5 with hierarchical pore structure was synthesized by a simple two-step hydrothermal crystallization from silica fume without using any organic ammonium *** synthesized ZSM-5 were oval shaped particles with a particle size about 2.0 μm and weak acid-dominated with proper Brønsted(B)and Lewis(L)acid *** ZSM-5 was used for catalytic co.cracking of n-octane and guaiaco.,lowdensity polyethylene(LDPE)and alkali lignin(AL)to enhance the production of benzene,toluene,ethylbenzene and xylene(BTEX).The most significant synergistic effect occurred at n-octane/guaiaco. at 1:1 and LDPE/AL at 1:3,under the co.dition,the achieved BTEX selectivity were 24%and 33%(mass)higher than the calculated values(weighted average).The highest BTEX selectivity reached 88.5%,which was 3.7%and 54.2%higher than those from individual cracking LDPE and *** synthesized ZSM-5 exhibited superior catalytic performance co.pared to the co.mercial ZSM-5,indicating potential application prospect.

关键词： Silica fume ZSM-5 Catalytic co.cracking Plastics Lignin