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Nano Research 2021年第11期14卷 3773-3794页

作者： Yong Xu Muhan Cao Shaoming Huang Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices Collaborative Innovation Center of Advanced Energy MaterialsSchool of Materials and EnergyGuangdong University of TechnologyGuangzhou510006China Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou215123China

Metal halide perovskite nanocrystals have attracted great attention of researchers due to their unique optoelectronic properties such as high photoluminescence quantum yield (PLQY), narrow full width at half-maximum (FWHM), long exciton diffusion length and high carrier mobility, which have been widely used in diverse fields including solar cells, photodetectors, light-emitting diodes, and lasers. Very recently, metal halide perovskites have emerged as a new class of materials in photocatalysis due to their promising photocatalytic performance. In this review, we summarize the recent advances on synthesis, modification and functionalization, with a specific focus on the photocatalytic application of metal halide perovskite nanocrystals. Finally, a brief outlook is proposed to point out the challenges in this emerging area. The goal of this view is to introduce the photocatalytic application of the metal halide perovskites and motivate researchers from different fields to explore more potentials in catalysis.

关键词： metal halide perovskite nanocrystals synthesis modification functionalization photocatalytic application

Direct fabrication of highly porous graphene/TiO_2 composite nanofibers by electrospinning for photocatalytic application

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Journal of Central South University 2018年第9期25卷 2182-2189页

作者： HE Yuan College of Environmental Science and Engineering Key Laboratory of Environmental Biology and PollutionHunan University

We reported the fabrication of highly porous graphene/TiO2 composite nanofibers in the form of a nonwoven mat by electrospinning followed by calcination in air at 450°*** graphene can uniformly disperse in highly porous TiO2 *** highly porous graphene/TiO2 composite nanofibers exhibited excellent catalytic *** new method for producing graphene/TiO2 composite nanofibers is versatile and can be extended to fabricate various types of metal oxide and graphene nanocomposites.

关键词： porous structure graphene titanium dioxide photocatalytic application

LDH-based nanomaterials for photocatalytic applications:A comprehensive review on the role of bi/trivalent cations, anions,morphology, defect engineering, memory effect, and heterojunction formation

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Journal of Energy Chemistry 2023年第9期84卷 242-276页

作者： Azmat Ali Khan Muhammad Tahir Nazish Khan Baluchistan University of Information Technology Engineering and Management Sciences(BUITEMS)P.O.Box 87100QuettaPakistan Chemical and Petroleum Engineering Department UAE UniversityP.O.Box 15551Al AinUnited Arab Emirates The University of Agriculture Swat P.O.Box 19040Pakistan

Using sunlight to drive chemical reactions via photocatalysis is paramount for a sustainable *** several photocatalysts,employing layered double hydrides(LDH) for photocatalytic application is most straightforward and desirable owing to their distinctive two-dimensional(2D) lamellar structure and optical *** article reviews the advancements in bimetallic/trimetallic LDHs and various strategies to achieve high efficiency toward an outstanding performing ***,the tuning of LDH components that control the electro nic and structural properties is *** tu ning obtained through the adoption,combination,and incorporation of different cations and anions is also *** progress of modification methods,such as the adoption of different morphologies,delamination,and defect engineering towards enhanced photocatalytic activities,is discussed in the *** band engineering,structural characteristics,and redox tuning are further deliberated to maximize solar energy harvesting for different photocatalytic ***,the progress obtained in forming hierarchical heterostructures through hybridization with other semiconductors or conducting materials is systematically disclosed to get maximum photocatalytic ***,the structural changes during the in-situ synthesis of LDH and the stability of LDH-based photocatalysts are *** review also summarizes the improvements in LDH properties obtained through modification tactics and discusses the prospects for future energy and environmental applications.

关键词： LDH Properties Potential photocatalyst photocatalytic application photocatalytic properties Improvement strategies

Carbon dots-based nanocomposites for heterogeneous photocatalysis

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Journal of Materials Science & Technology 2024年第8期175卷 244-257页

作者： Zhihan Yu Fang Li Quanjun Xiang State Key Laboratory of Electronic Thin Film and Integrated Devices School of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001China

Carbon dots(CDs),as a class of promising and multifunctional carbon nanomaterials,have become a research hotspot in the field of photocatalysis owning to strong absorption of visible light,favorable photoelectric properties,and tunable energy-level *** numerous efforts have been made to improve photocatalytic performance by combining CDs with other semiconductors in recent years,the summary of enhancement mechanisms for this emerging technology is few *** understanding the synergistic effect of CDs and nanomaterials in photocatalytic applications is extremely important for the further development of photocatalysis in the ***,the photocatalytic mechanism of carbon dots/nanomaterial system is *** typical carbon dots-synergistic enhancement effects are highlighted,namely,energy band regulation,local electric construction,active site engineering,and multiple carrier ***,the recent progress of carbon dots-based nanocomposites in efficient solar energy conversion is reviewed and examples are ***,the future research development direction and challenges are emphasized on this basis.

关键词： Carbon dots Carbon dots-based nanocomposites Synergistic effect photocatalytic enhancement mechanism photocatalytic application

Recent advances in metal-free CDs/g-C_(3)N_(4) photocatalysts:Synthetic strategies,mechanism insight,and applications

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Journal of Materials Science & Technology 2023年第19期150卷 11-26页

作者： Xingxing Yang Lina Sheng Yongli Ye Jiadi Sun Zaijun Li Xiao Ning Jin Cao Xiulan Sun State Key Laboratory of Food Science and Technology School of Food Science and TechnologyCollaborative Innovation Center of Food Safety and Quality ControlJiangnan UniversityWuxi 214122China Yixing Institute of Food and Biotechnology Co. LtdYixing 214200China School of Chemical and Material Engineering Jiangnan UniversityWuxi 214122China National Institutes for Food and Drug Control Beijing 100050China

Carbon dots/graphite carbon nitride(CDs/g-C_(3)N_(4)),a novel composite photocatalyst,has shown great po-tential for applications in energy regeneration and environmental remediation owing to its following advantages:metal-free,low cost,easily tunable,and excellent photocatalytic ***,we reviewed the development of synthetic strategies,photocatalytic enhancement mechanisms,and pho-tocatalytic applications of CDs/g-C_(3)N_(4) in this ***,the three composite strategies of CDs and g-C_(3)N_(4)-self-assembly,solvothermal,and calcination polymerization are outlined,and their advantages and disadvantages are described in ***,the photocatalytic enhancement mechanism of the com-posite strategies was elucidated according to the variation trends of CDs/g-C_(3)N_(4) band structure,electronic properties,light absorption range,and interfacial charge ***,the applications of CDs/g-C_(3)N_(4) in hydrogen evolution,pollutant degradation,CO_(2) reduction,and bacterial disinfection in recent years are reviewed ***,the current obstacles and future research directions of CDs/g-C_(3)N_(4) are discussed from the perspective of preparation technology and practical applications,respectively.

关键词： Photocatalysis Graphite carbon nitride Carbon dots Synthetic strategy photocatalytic application

High-efficiency crystalline carbon nitride photocatalysts:Status and perspectives

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Nano Research 2024年第9期17卷 7840-7863页

作者： Wenji Pu Yunqiao Zhou Lingfeng Yang Haifeng Gong Yuhan Li Qingyu Yang Dieqing Zhang Engineering Research Center for Waste Oil Recovery Technology and Equipment Ministry of EducationChongqing Key Laboratory of Catalysis and New Environmental MaterialsChongqing Technology and Business UniversityChongqing 400067China The Education Ministry Key Lab of Resource Chemistry Joint International Research Laboratory of Resource Chemistry of Ministry of EducationShanghai Key Laboratory of Rare Earth Functional Materialsand Shanghai Frontiers Science Center of Biomimetic CatalysisShanghai Normal UniversityShanghai 200234China State Key Laboratory of Tibetan Plateau Earth System Resources and EnvironmentInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China

Crystallinity and crystal structure greatly influence the photocatalytic behavior of *** g-C3N4 produced by traditional thermal-induced polycondensation reaction bears low crystallinity and thus poor photoactivity,which originates from the incomplete polymerization of the precursor containing amine groups,abundant hydrogen bonds,and unreacted amino,as well as cyanide functional groups in the *** photocatalytic process,these residual functional groups often work as electron trap sites,which may hinder the transfer of electrons on the plane,resulting in low ***,crystalline carbon nitride(CCN)was reported as a promising photocatalyst because its increased crystallinity not only reduces the number of carriers recombination centers,but also increases charge conductivity and improves light utilization due to extendedπ-conjugated systems and delocalizedπ-*** such,we summarize the recent studies on CCN-based photocatalysts for the photoactivity ***,the unique structure and properties of CCN materials are ***,the preparation methods and modification strategies are well *** also sum up the applications of CCN-based materials in the environmental purification and energy ***,this review concerning CNN materials ends with prospects and challenges in the obtainment of high crystallinity by effective techniques,and the deep understanding of photocatalytic mechanism.

关键词： crystalline carbon nitride preparation method modification strategy photocatalytic application

A review on Bi_(2)WO_(6)-based photocatalysts synthesis, modification, and applications in environmental remediation, life medical, and clean energy

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Frontiers of Environmental Science & Engineering 2024年第7期18卷 87-108页

作者： Wei Mao Xuewu Shen Lixun Zhang Yang Liu Zehao Liu Yuntao Guan Guangdong Provincial Engineering Technology Research Center for Urban Water Cycle and Water Environment Safety Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China State Environmental Protection Key Laboratory of Microorganism application and Risk Control School of EnvironmentTsinghua UniversityBeijing 100084China

Photocatalysis has emerged a promising strategy to remedy the current energy and environmental crisis due to its ability to directiy convert clean solar energy into chemical *** tungstate(Bi_(2)WO_(6))has been shown to be an excellent visible light response,a well-defined perovskite crystal structure,and an abundance of oxygen atoms(providing efficient channels for photogenerated carrier transfer)due to their suitable band gap,effective electron migration and separation,making them ideal *** has been extensively applied as photocatalyst in aspects including pollutant removal,carbon dioxide reduction,solar hydrogen production,ammonia synthesis by nitrogen photocatalytic reduction,and cancer *** this review,the fabrication and application of Bi_(2)WO_(6) in photocatalysis were comprehensively *** photocatalytic properties of BizwO-based materials were significantly enhanced by carbon modification,the construction of heterojunctions,and the atom doping to improve the photogenerated carrier migration rate,the number of surface active sites,and the photoexcitation ability of the *** addition,the potential development directions and the existing challenges to improve the photocatalytic performance of Bi_(2)WO_(6)-based materials were discussed.

关键词： Bismuth tungstate Synthesis and modification photocatalytic application Environmental remediation Clean energy Medical science