典型文献
Light-Induced Dynamic Stability of Oxygen Vacancies in BiSbO4 for Efficient Photocatalytic Formaldehyde Degradation
文献摘要：
Defect engineering has been regarded as a versatile strategy to maneuver the photocatalytic activity.However,there are a few studies concerning how to maintain the stability of defects,which is important to ensure sustainable photocatalytic performance.Here,a novel strategy to modulate the structural properties of BiSbO4 using light-induced dynamic oxygen vacancies is reported by us for efficient and stable photocatalytic oxidation of formaldehyde.Interestingly,the continuous consumption and replenishment of vacancies(namely dynamic vacancies)ensure the dynamic stability of oxygen vacancies,thus guaranteeing the excellent photocatalytic stability.The oxygen vacancies could also accelerate the electron migration,inhibit the photogenerated electron/hole recombination,widen the light absorption spectra,and thus improve the photocatalytic formaldehyde removal performance.Combined with the results of in situ DRIFTS,the reaction mechanism for each step of formaldehyde oxidation is revealed.As supported by DFT calculation of Gibbs free energy,the introduction of oxygen vacancies into BiSbO4 can promote spontaneous process of formaldehyde oxidation.Our work highlights a promising approach for stabilizing the defects and proposes the photocatalytic reaction mechanism in combination with the thermodynamic functions.
文献关键词：
中图分类号：
作者姓名：
Maoxi Ran;Wen Cui;Kanglu Li;Lvcun Chen;Yuxin Zhang;Fan Dong;Yanjuan Sun
作者机构：
Chongqing Key Laboratory of Catalysis and New Environmental Materials,College of Environment and Resources,Chongqing Technology and Business University,Chongqing 400067,China;School of Resources and Environment,Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu 611731,China;The Center of New Energy Materials and Technology,School of New Energy and Materials,Southwest Petroleum University,Chengdu 610500,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China;State Centre for International Cooperation on Designer Low-carbon and Environmental Materials(CDLCEM),School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China
文献出处：
引用格式：
[1]Maoxi Ran;Wen Cui;Kanglu Li;Lvcun Chen;Yuxin Zhang;Fan Dong;Yanjuan Sun-.Light-Induced Dynamic Stability of Oxygen Vacancies in BiSbO4 for Efficient Photocatalytic Formaldehyde Degradation)[J].能源与环境材料（英文）,2022(01):305-312
A类：
BiSbO4
B类：
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AB值：
0.605856
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