Photocatalytic Denitrogenation of Model Oil over Cu2O/TiO2

Cu2O/TiO2 catalyst was prepared by the modification of TiO2 with Cu(NO3)(2) through combined ultrasonic resonance and impregnation method. The samples were characterized by X-ray diffraction (XRD), N-2 adsorption-desorption (BET), UV-vis diffuse reflectance spectroscopy (DRS) and X-ray photoelectron spectroscopy (XPS). The catalyst was used for photocatalysis denitrogenation of pyridine in an octane solution under visible light. Pyridine was taken as the probe molecule to study the denitrogenation property of Cu2O/TiO2. The best performance in the photocatalytic denitrogenation of model oil containing pyridine was 85% under the conditions of Cu loading concentration of 0.5 mol/L, calcination temperature of 400 degrees C and calcination time of 5 h.