Catalysis Letters

, Volume 118, Issue 3, pp 231–237

Low Temperature Preparation and Characterization of N-doped and N-S-codoped TiO2 by Sol–gel Route

Authors

  • Yi Xie
    • Key Laboratory of Silicate Materials Science and EngineeringWuhan University of Technology, Ministry of Education
  • Qingnan Zhao
    • Key Laboratory of Silicate Materials Science and EngineeringWuhan University of Technology, Ministry of Education
    • Material Testing Center of WuhanUniversity of Technology
    • Key Laboratory of Silicate Materials Science and EngineeringWuhan University of Technology, Ministry of Education
  • Yuanzhi Li
    • Key Laboratory of Silicate Materials Science and EngineeringWuhan University of Technology, Ministry of Education
Article

DOI: 10.1007/s10562-007-9175-9

Cite this article as:
Xie, Y., Zhao, Q., Zhao, X.J. et al. Catal Lett (2007) 118: 231. doi:10.1007/s10562-007-9175-9

Abstract

This paper reports a new method to prepare the N-doped and N-S-codoped anatase TiO2 photocatalysts at 100 °C. The as-prepared photocatalysts were characterized by means of XRD, Raman spectra, TEM, BET, UV–Vis diffuse reflectance spectra (DRS) and XPS. The results showed that the N-doping and N-S-codoping extended the absorbance spectra of TiO2 into visible region with different extent. The BET surface area of the N-S-codoped TiO2 photocatalysts was high up to 245 m2g−1. The results of degradation of methyl orange (MO) solution showed that the N-doped and N-S-codoped TiO2 photocatalysts exhibited higher photocatalytic activity than that of Degussa P-25 and the as-prepared pure TiO2 under visible irradiation. This property can be attributed to the results of synergetic effects of absorption in the visible light region, red shift in adsorption edge, good crystallization and large surface area of the as-prepared N-doped or N-S-codoped TiO2.

Keywords

Low temperature preparationSol–gelN-S-codoped TiO2PhotocatalystVisible light

Copyright information

© Springer Science+Business Media, LLC 2007