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Synthesis of highly active rhodium-doped SrTiO3 powders in Z-scheme systems for visible-light-driven photocatalytic overall water splitting
Abstract
Two-step excitation photocatalytic systems called Z-scheme systems are attractive to achieve overall water splitting under visible light irradiation. The low activity of SrTiO3:Rh as a H2-evolving photocatalyst suppresses the overall efficiency of the Z-scheme system composed of SrTiO3:Rh modified with a Pt or Ru cocatalyst, BiVO4, and an Fe3+/Fe2+ electron mediator. In this study, improvement of efficiency for water splitting over the Z-scheme system has been achieved through the preparation of highly efficient SrTiO3:Rh photocatalysts by hydrothermal and polymerizable complex methods. It has also been revealed that excess amounts of Sr are necessary to obtain highly active SrTiO3:Rh photocatalysts. Apparent quantum yields of the Z-scheme systems were improved from 0.4% to 3.9–4.2% at 420 nm when SrTiO3:Rh prepared by HT and PC methods was used as a H2-evolving photocatalyst instead of that prepared by a solid state reaction. The efficiency of the improved Z-scheme system for solar energy conversion was determined to be 0.1%.
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Cites
Sasaki, Y., Kato, H., & Kudo, A. (2013) · Journal of the American Chemical Society · doi:10.1021/ja400238r · Cited by 389
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Cited by
Wang, Q., Hisatomi, T., Jia, Q., Tokudome, H., Zhong, M., Wang, C., Pan, Z., Takata, T., Nakabayashi, M., Shibata, N., et al. (2016) · Nature Materials · doi:10.1038/nmat4589 · Cited by 1,684
Self-citationZ‐Scheme Photocatalytic Systems for Solar Water Splitting
Ng, B., Putri, L. K., Kong, X. Y., Teh, Y. W., Pasbakhsh, P., & Chai, S. (2020) · Advanced Science · doi:10.1002/advs.201903171 · Cited by 533
Nano-structured rhodium doped SrTiO3–Visible light activated photocatalyst for water decontamination
Kiss, B., Manning, T. D., Hesp, D., Didier, C., Taylor, A., Pickup, D. M., Chadwick, A. V., Allison, H. E., Dhanak, V. R., Claridge, J. B., et al. (2017) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2017.01.066 · Cited by 89
Yang, S., & Ohtani, B. (2021) · Catalysis Today · doi:10.1016/j.cattod.2021.06.001 · Cited by 9
Metadata
- Authors
- Kato, H., Sasaki, Y., Shirakura, N., & Kudo, A.
- Venue
- Journal of Materials Chemistry A
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 1
- Issue
- 39
- Pages
- 12327
- ISSN
- 2050-7488 (ISSN-L)
- 2050-7496
- OpenAlex
- W2164263712
- Cited by
- 252
- References
- 1
- FWCI
- 6.13
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kato, H., Sasaki, Y., Shirakura, N., & Kudo, A. (2013). Synthesis of highly active rhodium-doped SrTiO3 powders in Z-scheme systems for visible-light-driven photocatalytic overall water splitting. Journal of Materials Chemistry A. https://doi.org/10.1039/c3ta12803b
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