Photocatalytic and Hydrophilic Properties or $TiO_2$/$Fe_2O_3$ Composite Films

  • Liu, Q.J. (Department of Material Science & Engineering, Yunnan University) ;
  • L, Q. (Department of Material Science & Engineering, Yunnan University) ;
  • Wu, X.H. (Department of Material Science & Engineering, Yunnan University) ;
  • Zhang, G.Q. (Department of Physics, Qujing Normal College) ;
  • Gao, Z.Q. (Department of Physics, Qujing Normal College) ;
  • Chen, G.X. (Department of Physics, Qujing Normal College)
  • Published : 2002.06.01

Abstract

TiO$_2$/Fe$_2$O$_3$composite thin films were prepared on common glass substrates by sol-gel processing and dip-drawing method. The effect of Fe$_2$O$_3$content on the photocatalytic and hydrophilic properties of composite films was studied. The results indicate that the photocatalytic activities of composite TiO$_2$films are superior to that of pure TiO$_2$film, and the film containing 0.5% Fe$_2$O$_3$has the best photocatalytic activity. The hydrophilicity is difference with variant Fe$_2$O$_3$content, the films containing 0.05% ~0.1% Fe$_2$O$_3$have the best hydrophilicity and their contact angles are 0。.

Keywords