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Efficient Overall Water Splitting under Visible-Light Irradiation on (Ga1-xZnx)(N1-xOx) Dispersed with Rh−Cr Mixed-Oxide Nanoparticles: Effect of Reaction Conditions on Photocatalytic Activity
Abstract
The photocatalytic activity of (Ga(1-x)Zn(x))(N(1-x)O(x)) loaded with Rh-Cr mixed-oxide (Rh(2-y)Cr(y)O3) nanoparticles for overall water splitting under visible-light irradiation (lambda > 400 nm) is investigated with respect to reaction pH and gas pressure. The photocatalytic performance of the catalyst is found to be strongly dependent on the pH of the reactant solution but largely independent of gas pressure. The present photocatalyst exhibits stable and high photocatalytic activity in an aqueous solution of pH 4.5 for 72 h. The photocatalytic performance is much lower at pH 3.0 and pH 6.2, attributable to corrosion of the cocatalyst and hydrolysis of the catalyst. The dispersion of Rh(2-y)Cr(y)O3 as a cocatalyst on the (Ga(1-x)Zn(x))(N(1-x)O(x)) surface promotes hydrogen evolution, which is considered to be the rate-determining step for overall water splitting on this catalyst.
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Citations
Cited by
Semiconductor-based Photocatalytic Hydrogen Generation
Chen, X., Shen, S., Guo, L., & Mao, S. S. (2010) · Chemical Reviews · doi:10.1021/cr1001645 · Cited by 7,876
Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting
Hisatomi, T., Kubota, J., & Domen, K. (2014) · Chem. Soc. Rev. · doi:10.1039/c3cs60378d · Cited by 4,580
Self-citationTang, J., Durrant, J. R., & Klug, D. R. (2008) · Journal of the American Chemical Society · doi:10.1021/ja8034637 · Cited by 1,012
A Particulate Photocatalyst Water-Splitting Panel for Large-Scale Solar Hydrogen Generation
Goto, Y., Hisatomi, T., Wang, Q., Higashi, T., Ishikiriyama, K., Maeda, T., Sakata, Y., Okunaka, S., Tokudome, H., Katayama, M., et al. (2018) · Joule · doi:10.1016/j.joule.2017.12.009 · Cited by 754
Self-citationMaeda, K., Higashi, M., Lu, D., Abe, R., & Domen, K. (2010) · Journal of the American Chemical Society · doi:10.1021/ja1009025 · Cited by 733
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Metadata
- Authors
- Maeda, K., Teramura, K., Masuda, H., Takata, T., Saito, N., Inoue, Y., & Domen, K.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-06-14
- Volume
- 110
- Issue
- 26
- Pages
- 13107-13112
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2001870424
- Cited by
- 231
- References
- 0
- FWCI
- 9.72
- Type
- journal article
- Language
- en
- Open access
- closed
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- Maeda, K., Teramura, K., Masuda, H., Takata, T., Saito, N., Inoue, Y., & Domen, K. (2006). Efficient Overall Water Splitting under Visible-Light Irradiation on (Ga1-xZnx)(N1-xOx) Dispersed with Rh−Cr Mixed-Oxide Nanoparticles: Effect of Reaction Conditions on Photocatalytic Activity. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp0616563
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