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    Defect engineering of photocatalysts for solar-driven conversion of CO2 into valuable fuels

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    Type
    Article
    Authors
    He, Yiqiang
    Lei, Qiong
    Li, Chunguang
    Han, Yu cc
    Shi, Zhan
    Feng, Shouhua
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Science Program
    Nanostructured Functional Materials (NFM) laboratory
    Physical Science and Engineering (PSE) Division
    Date
    2021-04
    Submitted Date
    2020-12-12
    Permanent link to this record
    http://hdl.handle.net/10754/669337
    
    Metadata
    Show full item record
    Abstract
    Photoreduction of CO2 into valuable fuels is a clean and sustainable way to mitigate the energy crisis and environmental problems. Factors limiting the efficiency of CO2 photoreduction include narrow-band light absorption, poor charge carrier separation and transport, and sluggish activation/reaction of CO2 on the surface of photocatalyst. In recent years, defect engineering of photocatalysts emerges as an effective method to improve their efficiency in the photocatalytic conversion of CO2 into useful fuels. This review is focused on discussing how structural defects can be used to modulate the electronic structure of the photocatalysts and activate the inert CO2 molecules. Special emphasis is placed on the important impact of defects on the charge carrier dynamics of the photocatalysts. Our discussions cover a variety of defective semiconductors, including metal oxides, metal sulfides, and two dimensional materials. In addition, the challenges and prospects of defect engineering in photoreduction of CO2 are also analyzed. This review aims to provide useful information about the fundamental principles of photoreduction of CO2 and guidance on the design and preparation of defective photocatalysts.
    Citation
    He, Y., Lei, Q., Li, C., Han, Y., Shi, Z., & Feng, S. (2021). Defect engineering of photocatalysts for solar-driven conversion of CO2 into valuable fuels. Materials Today. doi:10.1016/j.mattod.2021.03.021
    Sponsors
    This work was supported by the Natural Science Foundation of China (no. 21771077, 21771084 and 21621001), the National Key Research and Development Program of China (no. 2016YFB0701100), the 111 project (no. B17020) and the Foundation of Science and Technology Development of Jilin Province, China (20200801004GH). The authors also gratefully acknowledge the financial support by Program for JLU Science and Technology Innovative Research Team (JLUSTIRT).
    Publisher
    Elsevier BV
    Journal
    Materials Today
    DOI
    10.1016/j.mattod.2021.03.021
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S1369702121001140
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.mattod.2021.03.021
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Science Program

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