Photocatalytic activity of TiO2 doped with Zn2+ and V5+ transition metal ions: Influence of crystallite size and dopant electronic configuration on photocatalytic activity

LG Devi, BN Murthy, SG Kumar - Materials Science and Engineering: B, 2010 - Elsevier
Anatase TiO2 was prepared by sol–gel method through the hydrolysis of titanium
tetrachloride and doped with transition metal ions like V5+ and Zn2+. The photocatalysts
were characterized by various analytical techniques. Powder X-ray diffraction studies
revealed only anatase phase for the doped samples. The band gap absorption for the doped
samples showed red shift to the visible region (∼ 456nm) as confirmed by UV–vis
absorption spectroscopy and diffuse reflectance spectral studies. The surface area of the …
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