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Enhanced Photocatalytic Performance for the BiPO4–x Nanorod Induced by Surface Oxygen Vacancy
Abstract
The BiPO 4– x nanorod with surface oxygen vacancy was fabricated via vacuum deoxidation. The concentration and kind of oxygen vacancy could be controlled by tuning the deoxidation temperature and time in vacuum. The photocatalytic activity depended on the concentration and kind of surface oxygen vacancy, and the optimum photocatalytic activity and photocurrent of the BiPO 4– x nanorod was about 1.5 and 2.5 times as high as that of pure BiPO 4, respectively. Besides, the photocatalytic response wave range of the BiPO 4– x nanorod has been expanded to more than 365 nm. The enhancement of photocatalytic activity is attributed to the high separation efficiency of photoinduced electron–hole pairs due to the broadening of the valence band (VB) induced by surface oxygen-vacancy states, and the extending of photoresponse is considered to be the narrowing of energy band gap resulting from the rise of the valence band maximum (VBM).
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Citations
Cited by
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Di, J., Xia, J., Ge, Y., Li, H., Ji, H., Xu, H., Zhang, Q., Li, H., & Li, M. (2015) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2014.11.057 · Cited by 579
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Di, J., Xia, J., Ji, M., Wang, B., Yin, S., Zhang, Q., Chen, Z., & Li, H. (2015) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5b05268 · Cited by 332
Bui, H. T., Weon, S., Bae, J. W., Kim, E.-J., Kim, B., Ahn, Y.-Y., Kim, K., Lee, H., & Kim, W. (2021) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2020.123976 · Cited by 134
Metadata
- Authors
- Lv, Y., Zhu, Y., & Zhu, Y.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-08-28
- Volume
- 117
- Issue
- 36
- Pages
- 18520-18528
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2333965934
- Cited by
- 245
- References
- 0
- FWCI
- 7.57
- Type
- journal article
- Language
- en
- Open access
- closed
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