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Preparation and spectroscopic characterization of visible light sensitized N doped TiO2 (rutile)
- Source :
- Journal of Solid State Chemistry. 182:160-164
- Publication Year :
- 2009
- Publisher :
- Elsevier BV, 2009.
-
Abstract
- Nitrogen doped TiO{sub 2} represents one of the most promising material for photocatalitic degradation of environmental pollutants with visible light. However, at present, a great deal of activity is devoted to the anatase polymorph while few data about rutile are available. In the present paper we report an experimental characterization of N doped polycrystalline rutile TiO{sub 2} prepared via sol-gel synthesis. Nitrogen doping does not affect the valence band to conduction band separation but, generates intra band gap localized states which are responsible of the on set of visible light absorption. The intra band gap states correspond to a nitrogen containing defect similar but not coincident with that recently reported for N doped anatase. - Graphical abstract: Nitrogen doped TiO{sub 2} represents one of the most promising material for photocatalitic degradation of environmental pollutants with visible light. However, at present, a great deal of activity is devoted to the anatase polymorph while few data about rutile are available. In the present paper we report an experimental characterization of N doped polycrystalline rutile TiO{sub 2} prepared via sol-gel synthesis.
- Subjects :
- Anatase
Materials science
Band gap
Inorganic chemistry
Doping
Condensed Matter Physics
Photochemistry
Electronic, Optical and Magnetic Materials
Inorganic Chemistry
Rutile
Materials Chemistry
Ceramics and Composites
Crystallite
Physical and Theoretical Chemistry
Absorption (electromagnetic radiation)
Visible spectrum
Sol-gel
Subjects
Details
- ISSN :
- 00224596
- Volume :
- 182
- Database :
- OpenAIRE
- Journal :
- Journal of Solid State Chemistry
- Accession number :
- edsair.doi...........ca759f75f8a0aeb0be20412c35ebf2b9
- Full Text :
- https://doi.org/10.1016/j.jssc.2008.10.012