The photocatalytic efficiency of nanocrystalline TiO2 is strongly influenced by light sources and recombination of
photoinduced electrons and holes. It is known that TiO2 doped with Ag has self-sterilizing and self-cleaning effects. A
study has been carried out on the photocatalytic behavior of silver modified titanium dioxide for decomposition of
methyl orange after UV black lamps and solar irradiation treatment. The base nanoparticles were standard photocatalyst
TiO2 (P25). AgNO3 aqueous solution with the presence of TiO2 were irradiated with UV black lamps and reduced Ag
doped the surface of the TiO2 nanoparticles.