Abstract: Ag-doped titania nanotubes (Ag/TiNT) were prepared by photo-reduction method on the surface of Titania nanotubes (TiNT). XRD, TEM, XPS and BET specific surface area analysis methods were used to characterize the structure and morphology of TiNT and Ag/TiNT. The effects of calcination temperature of TiNTs, pH of the reaction system and Ag loading on the photocatalytic activities of Ag/TiNT for nitrobenzene removal were investigated. The results showed that the presence of Ag on the surface of TiNT had no effect on the phase composition and TiNT retained their nanotubular structure. Ag doping enhanced the photocatalytic removal efficiency of TiNT for nitrobenzene. The TiNT calcined at 400 ℃, doped with 0.5% Ag showed the highest photocatalytic activity. After irradiation for 140 minutes, the photocatalytic removal rate of Ag/TiNT for nitrobenzene reached 95.9% with the initial concentration of nitrobenzene 100 mg/L , the pH 3.5 and the amount of photocatalyst 0.4 g/L.