Study on P, N, and Mo Tri-Doped TiO2--Preparation and Photocatalytic Activities Under Visible Light.

Phosphorous (P), nitrogen (N), and molybdenum (Mo) tri-doped titanium dioxide ((P, N, Mo)-TiO2) were fabricated by hydrothermal method with titanyl sulfate (TiOSO4) and ammonium phosphomolybdate ((NH4)3H4[P4(Mo207)6]) as precursors. (P, N, Mo)-TiO2 was characterized by XRD, Raman, XPS and other advanced analysis devices. And the photocatalytic activites of (P, N, Mo)-TiO2 were evaluated using methylene blue (MB) and sulfosalicylic acid (SSA). Improved visible light response and photocatalytic properties were observed. The mechanism of photodegradation of MB and SSA under visible light by (P, N, Mo)-TiO2 was also proposed.