Preparation and photocatalytic activity of Fe~(3+)/Al~(3+)-TiO_2 composite photocatalyst and its the photocatalytic activity

Fe3+ and Al 3+ co-doped TiO2(Fe3+/Al3+-TiO2)composite photocatalysts were prepared by the sol-gel method using Ti(OC4H9)4 as precursor and characterized by X-ray diffraction(XRD)and UV-Vis.The effect of calcination temperature and salts in photocatalytic system on the photocatalytic activity of Fe3+/Al3+-TiO2 were investigated by photocatalytic degradation of methyl orange irradiated by sunlight.The photocatalytic activity of Fe3+/Al3+-TiO2 was enhanced with increasing temperature.HCO3-and NO2-decreased its photocatalytic activity.