Development of Supported TiO_2 Photocatalysts

TiO_2 photocatalysis is an energy-saved and high efficiency green environmental technology.TiO_2 photocatalyst has an attractive application perspective in wastewater treatment,air purification and material (self-)cleaning. It is very important to immobilize the TiO_2 photocatalyst onto substrates for designing high efficient photocatalytic reactors. In this paper the recent progress of TiO_2 photocatalyst is reviewed. Furthermore, types and effects of the supports, immobilization methods, influence of supports on photocatalytic activities are emphasized. The problems and development trends of TiO_2 photocatalysts have also been pointed out briefly.