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LaTiO2N as a Visible-Light (≤600 nm)-Driven Photocatalyst (2)
Abstract
LaTiO 2 N, a Ti-based oxynitride, was studied as a visible-light (420−600 nm)-driven photocatalyst. DFT calculation for LaTiO 2 N indicated that the top of the valence band consists predominantly of N 2p orbitals with a small contribution by O 2p orbitals, while the bottom of the conduction band is made up entirely of empty Ti 3d orbitals. LaTiO 2 N was synthesized from a La 2 Ti 2 O 7 precursor at 1123 K under NH 3 flow. The relationship between the preparation condition and the photocatalytic activities of H + reduction to H 2 and H 2 O oxidation to O 2 was examined. It was found that the photocatalytic activity for O 2 evolution increased with nitridation time, reaching a maximum at 72 h. Further treatment beyond 72 h lowered the rate of O 2 evolution. The rate of H 2 evolution was almost independent of nitridation time. The relationship between nitridation time and the rate of O 2 evolution is discussed on the basis of X-ray photoelectron spectroscopy (XPS) analyses.
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Cited by
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Chen, X., Shen, S., Guo, L., & Mao, S. S. (2010) · Chemical Reviews · doi:10.1021/cr1001645 · Cited by 7,876
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Maeda, K., & Domen, K. (2007) · The Journal of Physical Chemistry C · doi:10.1021/jp070911w · Cited by 1,514
Self-citationAbe, R. (2010) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/j.jphotochemrev.2011.02.003 · Cited by 1,223
Photocatalytic Activity Enhanced via g-C3N4 Nanoplates to Nanorods
Bai, X., Wang, L., Zong, R., & Zhu, Y. (2013) · The Journal of Physical Chemistry C · doi:10.1021/jp402062d · Cited by 697
Bao, N., Shen, L., Takata, T., Domen, K., Gupta, A., Yanagisawa, K., & Grimes, C. A. (2007) · The Journal of Physical Chemistry C · doi:10.1021/jp076566s · Cited by 270
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Metadata
- Authors
- Kasahara, A., Nukumizu, K., Takata, T., Kondo, J. N., Hara, M., Kobayashi, H., & Domen, K.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-12-28
- Volume
- 107
- Issue
- 3
- Pages
- 791-797
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2002629142
- Cited by
- 304
- References
- 0
- FWCI
- 6.79
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kasahara, A., Nukumizu, K., Takata, T., Kondo, J. N., Hara, M., Kobayashi, H., & Domen, K. (2003). LaTiO2N as a Visible-Light (≤600 nm)-Driven Photocatalyst (2). The Journal of Physical Chemistry B. https://doi.org/10.1021/jp026767q
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