Preparation of an Ag–TiO2 photocatalyst coated on activated carbon by MOCVD

The metal organic chemical vapor deposition (MOCVD) method has been applied to the preparation of an Ag–TiO2 photocatalyst coated on activated carbon. The Ag–TiO2 coating was characterized by various experimental techniques. Ag particles (1–5 nm) were coated on the surface of an anatase TiO2 layer. The photoactivity of the Ag–TiO2 photocatalyst with a proper Ag/Ti atomic ratio (0.0198–0.0595) was greatly higher than that of pure TiO2. The repeatability and strength test indicated that the Ag particles had a good adhesion on TiO2.