Sol-gel Preparation, Characterization and Photocatalytic Activity of Codoped nano-TiO2

摘要：

Co doped TiO2 nanoparticles and thin films were prepared from Ti(OC4H9)4 by sol-gel method. The influence of Co-doping and its content on the crystallite structure and phase composition of TiO2 was systematically investigated by SEM and XRD,the precursor was analysed by TGA. The photocatalytic activity of nanocomposites was mvestigated in the photocatalytic degradation of methyl orange. The results indicated that the inhibitory effect of Codoping on the phase transformation of TiO2 from anatase to rutile receded obviously when the calcination temperature was changed to 65℃ from 550℃. Under the ultraviolet light radiation. the favourite Codoping concentration was 1％ and the obtained Co doped TiO2 thin films exhibited higher photocatalytic activity than nanoparticles and pure TiO2 in the photodegradation of methyl orange.

关键词： TiO2 Co-doping Phase transformation Photocatalysis

作者: Lina Meng Wenyuan Xu Ting Xu

作者单位: Key Laboratory of Radioactive Geology and Exploration Technology Fundamental Science for National Defense,East China Institute of Technology,Fuzhou 344000,China

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 54-57

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）