Abstract In this paper, inorganic salt TiOSO4 was employed as the raw material to prepare TiO2 nano films on glass substrate via refluxed sol technique at 130 ℃. The structure characteristics and photocatalytic degradation of formaldehyde under visiblelight which were affected by single or double ion doping were then investigated. The results indicated that TiO2 films, doped with La3+, Fe3+ or these two co-doping, exhibited excellent photocatalytic activity which was evaluated by degradation of formaldehyde under visiblelight. As for the TiO2 film with La3+ and Fe3+ co-doping, the degradation rate of formaldehyde reached 90% after visiblelight irradiation for 6 h. The photocatalytic activity of these films under visiblelight can be ascribed to nanoscaled anatase structure and the change of band gap structures after doping ions.
Nippon Sheet Glass Foundation for Materials Science and Engineering(2008301-05340)资助
Cite this article:
WANG Ying, JI Hui-Ming, QU Zhao-Juan, DU Meng-Qiang, JIANG Lin.Low Temperature Synthesis of Doped TiO_2 Nanometer Film and Its Visible-Light Photocatalytic Degradation of Formaldehyde[J] Chemcial Industry and Engineering, 2010,V27(6): 471-475
2010, Vol. 27 
