The Studies of Photocatalytic Degradation of Methylene Blue over Fe_2O_3-SnO_2

Fe2O3-SnO2 oxide photocatalysts were prepared by the co-precipitation method.The photocatalytic destruction and decolorization of methylene blue under visible light were studied.The experiments showed that the efficiency of decolorization was related to illumination intensity,the pH value of methyene blue ,as well as the material proportion of photocatalyst.