Preparation and Photocatalytic Activities of Ce<sup>4+</sup> Doped TiO<sub>2</sub>

WANG Long; MAO Jian; ZHANG Xiao-li; TU Ming-jing

WANG Long, MAO Jian, ZHANG Xiao-li, TU Ming-jing. Preparation and Photocatalytic Activities of Ce4+ Doped TiO2[J]. Materials and Mechanical Engineering, 2007, 31(7): 76-78.

Citation:

WANG Long, MAO Jian, ZHANG Xiao-li, TU Ming-jing. Preparation and Photocatalytic Activities of Ce4+ Doped TiO2[J]. Materials and Mechanical Engineering, 2007, 31(7): 76-78.

Citation:

WANG Long, MAO Jian, ZHANG Xiao-li, TU Ming-jing. Preparation and Photocatalytic Activities of Ce4+ Doped TiO2[J]. Materials and Mechanical Engineering, 2007, 31(7): 76-78.

Preparation and Photocatalytic Activities of Ce⁴⁺ Doped TiO₂

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The 20-45 nm Ce4+ doped TiO2 was prepared by impregnation method and characterized by X-ray diffraction (XRD),transmission electron microscopy(TEM),UV-visible reflectance spectra,and absorbance spectra in photocatalytic degradation of methyl orange(MO).The results show that cerium doping enhances thermal stability of nano-TiO2 up to 800 ℃.In phtocatalytic degradation of MO,after 90 min irradiation,the decolor rate of MO treated with 1.2% Ce4+ doped TiO2 is 94.7%,while that of pure nano-TiO2 is only 53.7% after 120 min.

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Preparation and Photocatalytic Activities of Ce4+ Doped TiO2

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Preparation and Photocatalytic Activities of Ce⁴⁺ Doped TiO₂