Photodegradation of Methylene Blue Solution via Au Doped TiO2 Nanocomposite Catalysts Prepared Using Novel Photolysis Method

Abstract

<em>Gold doped TiO₂ has been successfully synthesized via the photolysis method and is characterized by different techniques. NPs of gold doped TiO₂ were utilized for the degradation of methylene blue as a material pigmentation pollutant. The substitution of Au on TiO₂ surface was established via XRD, EDX, TEM, and FT-IR techniques. The TEM and SEM results appeared that the particles in the nano range and its size below 15nm. Without a catalyst, the degradation of dye under visible light in acid and nature medium gives humble results but good results at pH 11 while it gives excellent results at all conditions when using catalyst.</em>