Abstract
Sol-gel method was used to synthesize undoped and zinc doped TiO2 with varied dopant concentrations using titanium tetraisopropoxide and zinc acetate as precursors. The synthesized catalyst samples were characterized by various techniques such as X-ray powder diffraction (XRD), UV-vis diffuse reflectance (DRS). The photocatalytic activity was determined by means of degradation of azo dye Eriochrome Black T. The results revealed that Zn doped TiO2 nanoparticles exhibited better results as compared to undoped TiO2 nanoparticles. Zn doped TiO2 (0.7mol %) nanoparticles exhibited the highest photocatalytic activity.
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