Visible Light Driven Titanium Oxide on Porous Silica Glass Surface.

Abstract

The band edge of titanium oxide clusters on porous silica glass shows the blue shift compared to bulk titanium oxide. Titanium tetrachloride was reacted with titanium oxide cluster surface, and following reaction of NH3 gas with chlorine groups (-Ti-Cl) was carried out. The band edge of the resulting product extended to visible region. The doping of nitrogen by surface reaction using titanium tetrachloride and NH3 gas is effective for the preparation of visible light driven titanium oxide clusters and is expected the speculation of the effective structure for absorption of visible light.