Catalysis Letters

, Volume 132, Issue 1, pp 244–247

Photocatalysis of Ag Doped TiOx Films Prepared at Room Temperature

  • Marta Horakova
  • Nicolas Martin
  • Eric Aubry
  • Petr Spatenka
Article

DOI: 10.1007/s10562-009-0093-x

Cite this article as:
Horakova, M., Martin, N., Aubry, E. et al. Catal Lett (2009) 132: 244. doi:10.1007/s10562-009-0093-x

Abstract

The aim of this paper is an investigation of the photocatalytic efficiency of TiOx thin films deposited by DC reactive magnetron sputtering at low temperature and doped by Ag noble metal. Crystallographic structure and chemical composition of as-deposited films were examined by XRD and RBS, respectively. Ag/TiOx films morphology was studied by SEM analysis. The photocatalytic activity was evaluated from the decomposition speed of an aqueous solution of the Acid Orange 7, exposed to UV/VIS light. A systematic change of Ag concentration in TiOx films led to a maximum activity. Such a maximum is discussed taking into account composition, morphology and structure of the films.

Keywords

Photocatalytic activityReactive magnetron sputteringAg dopingTitanium oxideAcid Orange 7

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Marta Horakova
    • 1
  • Nicolas Martin
    • 2
  • Eric Aubry
    • 1
    • 2
  • Petr Spatenka
    • 1
    • 3
  1. 1.Department of Material Science, Faculty of Mechanical EngineeringTechnical University in LiberecLiberecCzech Republic
  2. 2.Département MN2SInstitut FEMTO-ST (UMR 6174 CNRS), UFC, ENSMM, UTBMBesançon CedexFrance
  3. 3.Department of PhysicsUniversity of South BohemiaCeske BudejoviceCzech Republic