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Journal of Inorganic Materials, Volume. 37, Issue 8, 873(2022)

RhO2 Modified BiVO4 Thin Film Photoanodes: Preparation and Photoelectrocatalytic Water Splitting Performance

Yue HU1, Lin AN1, Xin HAN2、*, Chengyi HOU1, Hongzhi WANG1, Yaogang LI3, and Qinghong ZHANG3、*
Author Affiliations
  • 11. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
  • 22. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
  • 33. Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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    (a) XRD patterns and XPS spectra of (b) Bi4f, (c) V2p, (d) Rh3d of all BiVO4/RhO2 photoanodes
    1. (a) XRD patterns and XPS spectra of (b) Bi4f, (c) V2p, (d) Rh3d of all BiVO4/RhO2 photoanodes

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    (a, b) Low-magnification and (c, d) high-magnification FESEM images of bare BiVO4 surface and BiVO4/0.1-RhO2 photoanodes, and (e) high-magnification SEM image with elemental mappings of the BiVO4/0.1-RhO2 photoanode
    2. (a, b) Low-magnification and (c, d) high-magnification FESEM images of bare BiVO4 surface and BiVO4/0.1-RhO2 photoanodes, and (e) high-magnification SEM image with elemental mappings of the BiVO4/0.1-RhO2 photoanode

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    (a, c) TEM and (b, d) HRTEM images of (a, b) bare BiVO4 and (c, d) BiVO4/0.1-RhO2 photoanodes
    3. (a, c) TEM and (b, d) HRTEM images of (a, b) bare BiVO4 and (c, d) BiVO4/0.1-RhO2 photoanodes

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    (a) UV-Vis DRS spectra and (b) (αhν) 2vs hν tauc plots of BiVO4/RhO2 photoanodes
    4. (a) UV-Vis DRS spectra and (b) (αhν) 2vs hν tauc plots of BiVO4/RhO2 photoanodes

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    (a) Liner sweep voltammetry curves and (b) photocurrent response plots of BiVO4/RhO2 photoanodes in 1.0 mol/L Na2SO3 (pH8.5) electrolyte
    5. (a) Liner sweep voltammetry curves and (b) photocurrent response plots of BiVO4/RhO2 photoanodes in 1.0 mol/L Na2SO3 (pH8.5) electrolyte

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    (a) Liner sweep voltammetry curves and (b) photocurrent response plots of all BiVO4/RhO2 photoanodes in 0.5 mol/L Na2SO4 (pH6.8) electrolyte
    6. (a) Liner sweep voltammetry curves and (b) photocurrent response plots of all BiVO4/RhO2 photoanodes in 0.5 mol/L Na2SO4 (pH6.8) electrolyte

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    Nyquist plots of the BiVO4/RhO2 photoanodes
    7. Nyquist plots of the BiVO4/RhO2 photoanodes

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    (a) Photocurrent stability of the BiVO4/0.1-RhO2 photoanode in 1.0 mol/L Na2SO3 (pH8.5) under visible-light illumination, and (b) XRD patterns of the BiVO4/0.1-RhO2 photoanodes before and after illumination, respectively
    8. (a) Photocurrent stability of the BiVO4/0.1-RhO2 photoanode in 1.0 mol/L Na2SO3 (pH8.5) under visible-light illumination, and (b) XRD patterns of the BiVO4/0.1-RhO2 photoanodes before and after illumination, respectively

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    (a) Hydrogen and (b) oxygen evolution vs. reaction time per illuminated area for bare BiVO4 and BiVO4/RhO2 photoanodes under visible-light irradiation with the electrolyte of 1.0 mol/L Na2SO3 (pH8.5) as hole scavenger
    9. (a) Hydrogen and (b) oxygen evolution vs. reaction time per illuminated area for bare BiVO4 and BiVO4/RhO2 photoanodes under visible-light irradiation with the electrolyte of 1.0 mol/L Na2SO3 (pH8.5) as hole scavenger

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    Schematic diagram depicting PEC water splitting of the RhO2-modified BiVO4 photoanode under visible light irradiation
    10. Schematic diagram depicting PEC water splitting of the RhO2-modified BiVO4 photoanode under visible light irradiation

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    Yue HU, Lin AN, Xin HAN, Chengyi HOU, Hongzhi WANG, Yaogang LI, Qinghong ZHANG. RhO2 Modified BiVO4 Thin Film Photoanodes: Preparation and Photoelectrocatalytic Water Splitting Performance [J]. Journal of Inorganic Materials, 2022, 37(8): 873

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    Paper Information

    Category: RESEARCH ARTICLE

    Received: Dec. 29, 2022

    Accepted: --

    Published Online: Jan. 10, 2023

    The Author Email: HAN Xin (hanx.1026@gmail.com), ZHANG Qinghong (zhangqh@dhu.edu.cn)

    DOI:10.15541/jim20210798

    Topics

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