Tio2 FeN
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Abstract
Nitrogen substituted yellow colored anatase TiO2−xNx and Fe–N co-doped Ti1−yFeyO2−xNx have been easily synthesized by novel hydrazine method. White anatase TiO2−δ and N/Fe–N-doped samples are semiconducting and the presence of ESR signals at gArticle Outline
- 1. Introduction
- 2. Experimental
- 2.1. Synthesis
- 2.1.1. Preparation of titanium hydroxide, oxalate and their hydrazinates
- 2.1.2. Preparation of iron containing titanium oxalates and their hydrazinates
- 2.2. Characterization
- 2.3. Photodegradation of aqueous 2-propanol and gaseous NOx
- 2.4. Thermal products of the hydroxide, oxalate and their hydrazinates: codes
- 3. Results and discussions
- 3.1. Anatase phase: Fe-doped TiO2
- 3.2. BET surface area, nitrogen content, ESCA and DRS: band gap
- 3.2.1. Nitrogen: O2–N2 analysis and XPS
- 3.2.2. Diffuse reflectance spectra (DRS)
- 3.3. DC electrical conductivity, ESR
- 3.3.1. Electron spin resonance (ESR)
- 3.3.2. Mechanism of conductivity
- 3.3.3. Impurity levels in the wide band gap TiO2
- 3.3.4. Photocurrent
- 3.4. Photo-oxidation of 2-propanol and photodestruction of NOx
- 4. Conclusions
- Acknowledgements
- References