OICC Press Journal of Nanostructure in Chemistry 2193-8865 3 1 (December 2013) 2013 05 14 Superior photocatalytic degradation of azo dyes in aqueous solutions using TiO2/SrTiO3 nanocomposite 10.1186/2193-8865-3-32 EN Loghman Karimi Young Researchers and Elites Club, Yazd Branch, Islamic Azad University, Yazd, IR Salar Zohoori Department of Textile Engineering, Yazd Branch, Islamic Azad University, Yazd, IR Journal Article 2013 05 14 Abstract Research on photocatalytic degradation rate of azo dyes using TiO 2 /SrTiO 3 nanocomposite in the photocatalysis process was the main goal of the present study. The TiO 2 /SrTiO 3 nanocomposite was first synthesized under ultraviolet (UV) irradiation and sonication, and then, its photocatalytic activity has been examined under UV irradiation. The absorbance of samples was measured using a UV-vis spectrophotometer. The structure and morphology of the nanocomposite were investigated by scanning electron microscopy and the crystalline structure by X-ray diffraction spectroscopy. The results reveal that adding nano-SrTiO 3 to nano-TiO 2 showed the most promising photocatalytic activity toward dye degradation.