Synthesis and characterization of TiO2 photocatalyst doped by transition metal ions (Fe3+, Cr3+ and V5+)

被引：10
|
作者：
Vu A.T. [1 ]
Nguyen Q.T. [2 ]
Bui T.H.L. [1 ]
Tran M.C. [1 ]
Dang T.P. [1 ]
Tran T.K.H. [1 ]
机构：
[1] Institute of Chemistry, Vietnam Academy of Science and Technology, Cau Giay District, Hanoi, Vietnam
[2] University of Da Lat, Da Lat, Lam Dong, Vietnam
来源：
Advances in Natural Sciences: Nanoscience and Nanotechnology | 2010年 / 1卷 / 01期
基金：
中国国家自然科学基金; 美国国家卫生研究院;
关键词：
Doping transition metal; Hydrothermal method; Photocatalyst;
D O I：
10.1088/2043-6254/1/1/015009
中图分类号：
学科分类号：
摘要：
Nano TiO2 was synthesized by the hydrothermal method. The sample was doped with transition metal ions (V, Cr and Fe) and non-metal (N). Doped TiO2 samples were characterized by x-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and UV-Vis diffuse reflectance spectroscopy (UV-Vis). Photocatalytic activity in the mineralization of xylene (vapor phase), methylene blue and active dyer PR (liquid phase) was tested. In comparison with non-doped TiO2, V-, Cr-, Fe-doped TiO 2 and N-doped TiO2 samples exhibited much higher photocatalytic activity using visible light instead of UV. © 2010 Vietnam Academy of Science & Technology.
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