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
- Journal of Inorganic Materials
- Vol. 38, Issue 1, 87 (2023)
1. Schematic diagram of the preparation for BVO and its composite electrode
2. (a) X-ray diffraction (XRD) patterns and (b) Fourier transform infrared (FT-IR) spectra of different electrodes
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
4. X-ray photoelectron spectra (XPS) of BVO/g-C3N4/FeNiOx photoanode
5. Mott-Schottky (M-S) curves of (a) BVO and (b) g-C3N4 electrodes
6. Photoelectrochemical performance 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 (η sep), (e) surface charge injection efficiency (η inj), and (f) photoluminescence (PL) spectra of different photoanodes
8. (a) Application bias photon-to-current efficiency (ABPE) and (b) electrochemical impedance spectra (EIS) of photoanodes
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
10. Schematic illustration of charge transfer for PEC water splitting
S1. XRD pattern of g-C3N4 nanosheets
S2. High resolution SEM images of BVO/g-C3N4/FeNiOx
S3. SEM images of pure g-C3N4 nanosheets
S4. Cross-section SEM image of BVO/g-C3N4/FeNiOx
S5. LSV curves of BVO/g-C3N4/FeNiOx at different scan rates
S6. Light harvesting efficiency (ηabs) curves of different photoanodes
S7. Theoretical photocurrent density (Jabs) obtained with integrated solar spectrum for each electrode
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