Fe3+-La3+Co-doped TiO2 Photocatalyst for the Purification of Air

摘要：

The Fe3+-La3+Co-doped TiO2 photocatalysts prepared by doping lanthanum ion and iron ion into TiO2 structure in a sol–gel process were shown to be efficient photocatalyst for the oxidation of formaldehyde. The catalyst samples were then characterized by XRD and UV-vis analyses. The analytical results demonstrated that the lanthanum-Iron co-doping could inhibit the phase transformation of TiO2 and enhance the thermal stability of TiO2 structure. In addition, it was found that the lanthanum-Iron co-doping could reduce the crystallite size and increase the Ti3+ content on the surface of the catalysts with the increase of lanthanum doping. Their high photocatalytic efficiency dueing to the enhancement of the activity of the Fe3+-La3+Co-doped photocatalysts might be attributed to both the improvement of the adsorption of organic substrate and the separation of electron-hole pairs.

关键词： purification photocatalysts formaldehyde

作者: LIU Baojiang CHENG Xubang HE Jinxin

作者单位: College of Chemistry,Chemical Engineering and Biotechnology,Donghua University,Shanghai 201620,China The Key Laboratory of Textile Science and Technology,Ministry of Education,Shanghai 201620,China

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 869-872

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）