Preparation and Properties of La and Fe Co-Doping TiO2 Photocatalyst

Jiao Jiao He; Hui Ling Du; Jun Liu; Xiang Shi; Miao Yao

doi:10.4028/www.scientific.net/MSF.809-810.878

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HomeMaterials Science ForumMaterials Science Forum Vols. 809-810Preparation and Properties of La and Fe Co-Doping...

Preparation and Properties of La and Fe Co-Doping TiO₂Photocatalyst

Abstract:

Using butyl titanate as titanium source, lanthanum nitrate as a source of lanthanum, iron nitrate as an iron source, the titanium dioxide powder of lanthanum/iron single-doped and co-doped were synthesized by the sol-gel combustion method. The doped TiO₂ powders were characterized by X-ray powder diffraction (XRD) and infrared spectroscopy (IR), and the photocatalytic activity was studied with methyl blue, methylene chloride and formaldehyde as the source of pollution. The results show that we obtain TiO₂ anatase when the heat treatment temperature was 450 °C. When the amount of doped Lanthanum and iron were 0.5%, the grain size of the powder was significantly reduced and the degradation efficiency for organic pollutions was highly improved compared with pure TiO₂.