Abstract
The photo-assisted deposition (PAD) and impregnation (img) synthesis of nano-sized Ag metal on TiO
2–SiO
2 are reported. The prepared catalysts were characterized by different techniques such as XRD, XAFS, TEM and nitrogen adsorption analysis. Photocatalytic reactivity using Ag–TiO
2–SiO
2 catalysts under visible-light condition on the oxidation of EDTA with O
2 reaction was evaluated. The results have shown notable photocatalytic activity of PAD-Ag–TiO
2–SiO
2 which was 2 and 5 times higher than that of imp-Ag–TiO
2–SiO
2 and TiO
2–SiO
2, respectively.