Investigation of the use of TiO2 doped with metal ions in water disinfection.

This research was conducted to improve titanium dioxide by transition metal doping using cooper. Sol gel method was used to prepare metal doped TiO 2 . Titanium isopropoxide and commercial TiO 2 P25 were employed as catalyst precursor. The role played by the varied preparation parameters such as doping level and pH of solution discussed with respect to the final photoreactivity. Photoreactivity was carried out in a solar box with two UVA lamps. The photodisinfection of E. coli in aquatic solution were selected as probe to measure the photoreactivity. It is found that Cu doped TiO 2 exhibited enhanced results from E. coli photodisinfection.