%0 Journal Article %A Azam Anaraki Firooz and Ali Reza Mahjoub and Abbas Ali Khodadadi %D 2011 %J International Journal of Chemical and Molecular Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 52, 2011 %T Hydrothermal Synthesis of ZnO/SnO2 Nanoparticles with High Photocatalytic Activity %U https://publications.waset.org/pdf/1302 %V 52 %X The paper reports the preparation and photocatalytic activity of ZnO/SnO2 and SnO2 nanoparticles. These nanoparticles were synthesized by hydrothermal method. The products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Their grain sizes are about 50-100 nm. The photocatalytic activities of these materials were investigated for congo red removal from aqueous solution under UV light irradiation. It was shown that the use of ZnO/SnO2 as photocatalyst have better photocatalytic activity for degradation of congo red than SnO2 or TiO2 (anatase, particle size: 30nm) alone. %P 268 - 270