Noble metal doped TiO2 has been emerged as an effective catalyst for improving the activity of TiO2. Here we report the
preparation of silver doped TiO2 by photodeposition process. TiO2 and Ag-TiO2 were characterized by X-ray diffraction, scanning
electron microscopy, energy dispersive X-ray spectroscopy, tunnelling electron microscopy, Brunner Emmer Teller analysis. The
average particle size of prepared TiO2 and Ag-TiO2 was found to be 7 nm and 20 nm respectively as measured by TEM analysis. BET
surface area of prepared TiO2 and Ag-TiO2 was found to be 150 m2/g and 140 m2/g, respectively. From the UV-visible measurement,
the absorption in the visible light of the Ag-TiO2 and as prepared TiO2 was found to be improved and was shifted to longer wavelength
(visible range). The obtained results show that the photocatalytic efficiency of Ag-TiO2 was better than prepared TiO2 for the
photodegradation of methyl orange.