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Photocatalytic Activity of R3MO7 and R2Ti2O7 (R = Y, Gd, La; M = Nb, Ta) for Water Splitting into H2 and O2
Abstract
The photocatalytic activities of R3MO7 and R2Ti2O7 (R=Y, Gd, La; M=Nb, Ta) strongly depended on the crystal structure. Overall, photocatalytic water splitting into H2 and O2 proceeded over La3TaO7 and La3NbO7, which have an orthorhombic weberite structure, Y2Ti2O7 and Gd2Ti2O7, which have a cubic pyrochlore structure, and La2Ti2O7, which has a monoclinic perovskite structure. All of these materials are composed of a network of corner-shared octahedral units of metal cations (TaO6, NbO6, or TiO6); materials without such a network were inactive. The octahedral network certainly increased the mobility of electrons and holes, thereby enhancing photocatalytic activity.
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Citations
Cited by
Heterogeneous photocatalyst materials for water splitting
Kudo, A., & Miseki, Y. (2009) · Chem. Soc. Rev. · doi:10.1039/b800489g · Cited by 10,585
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
Abe, R. (2010) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/j.jphotochemrev.2011.02.003 · Cited by 1,223
Self-citationLi, P., Ouyang, S., Xi, G., Kako, T., & Ye, J. (2012) · The Journal of Physical Chemistry C · doi:10.1021/jp210106b · Cited by 277
Wang, G., Huang, B., Li, Z., Lou, Z., Wang, Z., Dai, Y., & Whangbo, M.-H. (2015) · Scientific Reports · doi:10.1038/srep08544 · Cited by 271
Heterogeneous photocatalytic cleavage of water
Kitano, M., & Hara, M. (2010) · J. Mater. Chem. · doi:10.1039/b910180b · Cited by 260
Metadata
- Authors
- Abe, R., Higashi, M., Sayama, K., Abe, Y., & Sugihara, H.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-01-12
- Volume
- 110
- Issue
- 5
- Pages
- 2219-2226
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2322403516
- Cited by
- 298
- References
- 0
- FWCI
- 7.42
- Type
- journal article
- Language
- en
- Open access
- closed
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