Effect of transition metal elements addition on the properties of nitrogen-doped TiO2 photocatalysts

H. Li, P. Zhang, S. Yin, Y. Wang, Q. Dong, C. Guo, T. Sato

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Nitrogen-doped TiO2 (TiO2-xNy) nanoparticles with and without adding the transition metal ions, such as Co + and Ni+, were synthesized by thermohydrolysis of TiCl3. The samples were characterized by X-ray diffraction, specific surface area determination, UV-vis diffuse reflectance spectroscopy. The photocatalytic activity of the sample was investigated by employing the oxidative destruction of nitric oxide as a probe reaction using a continuously flowing gases-solid system. Although the doping of transition metal ion in the lattice of titania was not useful to improve the photocatlytic activity, loading of transition metal oxides on the surface of titania resulted in an improvement of the photoreactivity of the nitrogen-doped TiO2. The beneficial effect was explained by an increased separation efficiency of the photogenerated electron-hole pairs.

Original languageEnglish
Article number12013
JournalJournal of Physics: Conference Series
Volume339
Issue number1
DOIs
Publication statusPublished - 2012
Event4th International Symposium on Functional Materials, ISFM2011 - Sendai, Japan
Duration: 2011 Aug 22011 Aug 6

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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