Preparation and Performance of TiO_2/SnO_2 Composite Light Catalyst

The compound particles of nano TiO2/SnO2 were prepared by special liquid-phase precipitation method,that were characterized by XRD and TEM.The photo-catalytic activity of nano TiO2/SnO2 was studied by the degradation of methyl orange solution under the sun.The results indicated that nano TiO2/SnO2 composite catalyst had better photo-catalytic activity than pure nano TiO2,there was the optimal degradation effect when the mole percent of SnO2 was 20%,and the degradation rate of methyl orange solution can be up to 90.2% for the methyl orange concentration of 10mg/L within 60min with the relative photo-catalytic activity.