• TiO2 nanotubes were modified with Cu, AgCu, Bi nanoparticles via gamma radiolysis. • Excessive amount of deposited metal decreased photocatalytic activity. • AgCu-modified samples were more active than Cu-modified (with the same Cu content). • AgCu nanoparticles exist in a core(Ag)-shell(Cu) form. • Examined photocatalysts were resistant towards photocorrosion processes.
1 January 2014 in Applied Catalysis B: Environment and Energy