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  • Accelerated separation of photogenerated charge carriers and enhanced photocatalytic performance of g-C3N4 by Bi2S3 nanoparticles

    Author(s)
    Hao, Qiang
    Xie, Ci'an
    Huang, Yongming
    Chen, Daimei
    Liu, Yiwen
    Wei, Wei
    Ni, Bing-Jie
    Griffith University Author(s)
    Hao, Derek
    Year published
    2020
    Metadata
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    Abstract
    Employing photothermal conversion to improve the photocatalytic activity of g-C3N4 is rarely reported previously. Herein, different ratios of g-C3N4/Bi2S3 heterojunction materials are synthesized by a facile ultrasonic method. Advanced characterizations such as X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy are employed to analyze the morphology and structure of the prepared materials. Compared with sole counterparts, the heterojunction materials CN-BiS-2 exhibit significantly enhanced photocatalytic performance, which is ...
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    Employing photothermal conversion to improve the photocatalytic activity of g-C3N4 is rarely reported previously. Herein, different ratios of g-C3N4/Bi2S3 heterojunction materials are synthesized by a facile ultrasonic method. Advanced characterizations such as X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy are employed to analyze the morphology and structure of the prepared materials. Compared with sole counterparts, the heterojunction materials CN-BiS-2 exhibit significantly enhanced photocatalytic performance, which is 2.05-fold as g-C3N4 and 4.42-fold as Bi2S3. A possible degradation pathway of methylene blue (MB) was proposed. Based on the photoproduced high-energy electrons and photothermal effect of Bi2S3, the transfer and separation of electron-hole pairs are greatly enhanced and more active species are produced. In addition, the relatively high utilization efficiency of solar energy has synergistic effect for the better photocatalytic performance.
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    Journal Title
    Chinese Journal of Catalysis
    Volume
    41
    Issue
    2
    DOI
    https://doi.org/10.1016/S1872-2067(19)63450-9
    Subject
    Physical chemistry
    Wastewater treatment processes
    Science & Technology
    Physical Sciences
    Chemistry, Applied
    Chemistry, Physical
    Publication URI
    http://hdl.handle.net/10072/412059
    Collection
    • Journal articles

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