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Journal of Inorganic Materials, Volume. 38, Issue 1, 87(2023)

p-n Heterostructured BiVO4/g-C3N4 Photoanode: Construction and Its Photoelectrochemical Water Splitting Performance

Ruyi WANG1,2, Guoliang XU1,2,3, Lei YANG1,2、*, Chonghai DENG1,2, Delin CHU4, Miao ZHANG5, and Zhaoqi SUN5、*
Author Affiliations
  • 11. School of Energy Materials and Chemical Engineering, Hefei University, Hefei 230601, China
  • 22. Key Laboratory of Materials and Technologies for Advanced Batteries, Hefei University, Hefei 230601, China
  • 33. Changxin Memory Technologies, Inc., Hefei 230000, China
  • 44. Institute of Physical Science and Information Technology, Anhui University, Hefei 230039, China
  • 55. School of Materials Science and Engineering, Anhui University, Hefei 230039, China
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    AbstractGet PDF(in Chinese)
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    References (37)
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    Figures & Tables(17)
    Schematic diagram of the preparation for BVO and its composite electrode
    1. Schematic diagram of the preparation for BVO and its composite electrode

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    (a) X-ray diffraction (XRD) patterns and (b) Fourier transform infrared (FT-IR) spectra of different electrodes
    2. (a) X-ray diffraction (XRD) patterns and (b) Fourier transform infrared (FT-IR) spectra of different electrodes

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    Scanning electron microscope (SEM) images of (a) BVO, (b) BVO/g-C3N4, (c) BVO/g-C3N4/FeNiOx, and (d-j) energy dispersive spectrometer (EDS) mappings of BVO/g-C3N4/FeNiOx
    3. Scanning electron microscope (SEM) images of (a) BVO, (b) BVO/g-C3N4, (c) BVO/g-C3N4/FeNiOx, and (d-j) energy dispersive spectrometer (EDS) mappings of BVO/g-C3N4/FeNiOx

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    X-ray photoelectron spectra (XPS) of BVO/g-C3N4/FeNiOx photoanode
    4. X-ray photoelectron spectra (XPS) of BVO/g-C3N4/FeNiOx photoanode

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    Mott-Schottky (M-S) curves of (a) BVO and (b) g-C3N4 electrodes
    5. Mott-Schottky (M-S) curves of (a) BVO and (b) g-C3N4 electrodes

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    Photoelectrochemical performance of different photoanodes
    6. Photoelectrochemical performance of different photoanodes

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    (a) Ultraviolet and visible (UV-Vis) spectra, (b) Tauc curves, (c) LSV curves with Na2SO3 in electrolyte, (d) bulk charge separation efficiency (ηsep), (e) surface charge injection efficiency (ηinj), and (f) photoluminescence (PL) spectra of different photoanodes
    7. (a) Ultraviolet and visible (UV-Vis) spectra, (b) Tauc curves, (c) LSV curves with Na2SO3 in electrolyte, (d) bulk charge separation efficiency (ηsep), (e) surface charge injection efficiency (ηinj), and (f) photoluminescence (PL) spectra of different photoanodes

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    (a) Application bias photon-to-current efficiency (ABPE) and (b) electrochemical impedance spectra (EIS) of photoanodes
    8. (a) Application bias photon-to-current efficiency (ABPE) and (b) electrochemical impedance spectra (EIS) of photoanodes

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    (a)Gas evolutions detected by gas chromatography and Faradaic efficiency for BVO/g-C3N4/FeNiOx and (b) stability curve of BVO/g-C3N4/FeNiOx
    9. (a)Gas evolutions detected by gas chromatography and Faradaic efficiency for BVO/g-C3N4/FeNiOx and (b) stability curve of BVO/g-C3N4/FeNiOx

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    Schematic illustration of charge transfer for PEC water splitting
    10. Schematic illustration of charge transfer for PEC water splitting

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    XRD pattern of g-C3N4 nanosheets
    S1. XRD pattern of g-C3N4 nanosheets

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    High resolution SEM images of BVO/g-C3N4/FeNiOx
    S2. High resolution SEM images of BVO/g-C3N4/FeNiOx

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    SEM images of pure g-C3N4 nanosheets
    S3. SEM images of pure g-C3N4 nanosheets

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    Cross-section SEM image of BVO/g-C3N4/FeNiOx
    S4. Cross-section SEM image of BVO/g-C3N4/FeNiOx

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    LSV curves of BVO/g-C3N4/FeNiOx at different scan rates
    S5. LSV curves of BVO/g-C3N4/FeNiOx at different scan rates

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    Light harvesting efficiency (ηabs) curves of different photoanodes
    S6. Light harvesting efficiency (ηabs) curves of different photoanodes

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    Theoretical photocurrent density (Jabs) obtained with integrated solar spectrum for each electrode
    S7. Theoretical photocurrent density (Jabs) obtained with integrated solar spectrum for each electrode

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    Ruyi WANG, Guoliang XU, Lei YANG, Chonghai DENG, Delin CHU, Miao ZHANG, Zhaoqi SUN. p-n Heterostructured BiVO4/g-C3N4 Photoanode: Construction and Its Photoelectrochemical Water Splitting Performance [J]. Journal of Inorganic Materials, 2023, 38(1): 87

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: Jul. 28, 2022

    Accepted: --

    Published Online: Sep. 25, 2023

    The Author Email: Lei YANG (ylei531@163.com), Zhaoqi SUN (szq@ahu.edu.cn)

    DOI:10.15541/jim20220439

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology