The photocatalytic oxidation technology has been verified as an effective method to oxidize As(III) to As(V) with low toxicity and the photocatalyst with perfect performances is still the core factor in the treatment procedure. In this paper, a high property photocatalyst of Sn/N co-doping TiO2 (Sn/N-TiO2) has been synthesized and applied to the photocatalytic oxidation of As(III). Through a series of characterization methods, it is proved that Sn and N atoms have been effectively doped into the crystal structure of TiO2, which makes the optical absorption wavelength of TiO2 extend from ultrav...
