The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Origin of Photoactivity of Nitrogen-Doped Titanium Dioxide under Visible Light
Abstract
Nitrogen-doped titanium dioxide (N-TiO2), a photocatalytic material active in visible light, has been investigated by a combined experimental and theoretical approach. The material contains single-atom nitrogen impurities that form either diamagnetic (Nb-) or paramagnetic (Nb*) bulk centers. Both types of Nb centers give rise to localized states in the band gap of the oxide. The relative abundance of these species depends on the oxidation state of the solid, as, upon reduction, electron transfer from Ti3+ ions to Nb* results in the formation of Ti4+ and Nb-. EPR spectra measured under irradiation show that Nb centers are responsible for visible light absorption with promotion of electrons from the band gap localized states to the conduction band or to surface-adsorbed electron scavengers. These results provide a characterization of the electronic states associated with N impurities in TiO2 and, for the first time, a picture of the processes occurring in the solid under irradiation with visible light.
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Cites
Generalized Gradient Approximation Made Simple
Perdew, J. P., Burke, K., & Ernzerhof, M. (1996) · Physical Review Letters · doi:10.1103/physrevlett.77.3865 · Cited by 215,824
Environmental applications of semiconductor photocatalysis
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Explaining the Enhanced Photocatalytic Activity of Degussa P25 Mixed-Phase TiO 2 Using EPR
Hurum, D. C., Agrios, A. G., Gray, K. A., Rajh, T., & Thurnauer, M. C. (2003) · The Journal of Physical Chemistry B · doi:10.1021/jp0273934 · Cited by 2,015
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TiO2 photocatalysis and related surface phenomena
FUJISHIMA, A., ZHANG, X., & TRYK, D. (2008) · Surface Science Reports · doi:10.1016/j.surfrep.2008.10.001 · Cited by 6,737
Mechanistic Insight into the TiO2Photocatalytic Reactions: Design of New Photocatalysts
Tachikawa, T., Fujitsuka, M., & Majima, T. (2007) · The Journal of Physical Chemistry C · doi:10.1021/jp069005u · Cited by 668
A Review of Removal of Pollutants from Water/Wastewater Using Different Types of Nanomaterials
Amin, M. T., Alazba, A. A., & Manzoor, U. (2014) · Advances in Materials Science and Engineering · doi:10.1155/2014/825910 · Cited by 645
Zheng, Q., Chu, W., Zhao, C., Zhang, L., Guo, H., Wang, Y., Jiang, X., & Zhao, J. (2019) · WIREs Computational Molecular Science · doi:10.1002/wcms.1411 · Cited by 452
Dong, F., Guo, S., Wang, H., Li, X., & Wu, Z. (2011) · The Journal of Physical Chemistry C · doi:10.1021/jp111916q · Cited by 401
Metadata
- Authors
- Livraghi, S., Paganini, M. C., Giamello, E., Selloni, A., Di Valentin, C., & Pacchioni, G.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-11-15
- Volume
- 128
- Issue
- 49
- Pages
- 15666-15671
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2080350024
- Cited by
- 872
- References
- 4
- FWCI
- 36.83
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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