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| Study on Effects of La /Fe Doping on TiO2 Photocatalyst |
| LIU Jun-juan, ZHANG Wei-yan, WANG Jia-liu, WEN Ning, XU Shi-hua, SHEN Feng-lei |
| Hebei Yanuo Chemical Industry Corporation Ltd., Shijiazhuang 052165, China |
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Abstract Theaa La /Fe -doped TiO2 photocatalysts were prepared by sol-gel method. The structure and optical absorption of TiO2 were analyzed by X ray diffraction and UV vis diffuse reflectance, and the effect of catalyst on the degradation of methylene blue was studied.It is found that doping with La3+/Fe3+ restricts the anatase phase transforming to rutile phase,changes the band gap energy of TiO2 so that TiO2 has a red shift to visible light region,and improves the photocatalytic activity of TiO2.
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