Enhanced photocatalytic degradation of rutile TiO2 by analysis of the surface potential and fluorescence

摘要：

Rare earth (RE) (La 3+, Ce 4+, Pr 3+, Nd 3+, Sm 3+, Eu 3+, Gd 3+, Tb 3+, Dy 3+, Er 3+, Tm 3+and Y 3+) doped rutile phase TiO2 were prepared by low temperature one step synthesis and used as photocatalyst. The RE doped rutile phase TiO2 were characterized by X-ray diffraction (XRD), Particle Size, zeta potential, UV-visible spectroscopy, fluorescence spectrum. The results show that the RE have been doped into the rutile TiO2 crystal lattice successfully. It was analyzed that main crystal phase was rutile phase TiO2 in XRD. It shows that we can get micrometer-size rutile phase TiO2 and RE doped TiO2 by one-step method. Particle Size indicate that we can get micrometer-size rutile TiO2 and RE doped rutile TiO2 by one-step method. The results of zeta potential of RE doped rutile TiO2 explain RE how to change the photoelectric activity by increase the lattice defect. The results of FS show that RE how to influence on the electron transition and the electron trap of rutile TiO2. These results indicate that RE can enhanced photocatalytic degradation of rutile TiO2.

作者: Ma Liyang Dong Faqin Bian Liang

作者单位: School of Materials Science and Engineering Southwest University of Science and Technology Mianyang, Key Laboratory of Solid Waste Treatment and Resource Recycle SWUST Ministry of Education Mianyang, C Institute of Chemical Materials China Academy of Engineering Physics Mianyang, China

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）