Rapid Microwave Hydrothermal Methods Synthesis of TiO2Photocatalysts Using Different Sources of Materials

Using TiCl4, Ti(SO4)2 and TBOT as different Ti precursor, titania (TiO2) photocatalysts with high specific surface area were prepared by rapid microwave hydrothermal method. The as-prepared catalysts were characterized by TEM, XRD, DRS and N2 adsorption. The dependence of degradation efficiency of MB on the surface area, crystal structure and band gap of the obtained TiO2 particles were investigated. Results showed that compared with the TiO2 derived from TiCl4 and Ti(SO4)2 precursor, the TiO2 from TBOT exhibited best photocatalytic performance due to its higher surface area, capability of homogenous dispersion and its characteristic of anatanse structure.