Evaluation of structure and photocatalytic activity of visible light driven titanium oxide prepared by gaseous reaction on solid surface

Abstract

Titanium oxide clusters doping nitrogen were prepared by the reaction of titanium tetrachloride vapor and NH3 gas on porous silica glass surface. The sample showed absorption in visible light region and photocatalytic activity depended on the amount of doped nitrogen atoms. The reaction mechanism on the glass surface was investigated by the measurements of in situ FT-IR spectra. The size of the cluster on the glass surface was estimated from the peak widths of X-ray diffraction pattern.