Photocatalytic properties of Ag surface doped Nanocrystalline TiO2-SiO2 composite films

摘要：

　　Ag surface doped TiO2-SiO2 composite films had been synthesized by the sol-gel method and doping processes,in which tetrabutyl titanate (Ti(OC4H9)4) and tetraethylorthosilicate (TEOS)were chosen as the precursors and silver nitrate (AgNO3) was chosen as silver source.The experimental results revealed that the Ag surface doped TiO2-SiO2 composite film was composed of uniform round-like nano-particles or aggregates with the size range of 4-10 nm.Compared with pure TiO2 film,Ag surface doped TiO2-SiO2 composite film exhibited excellent photocatalytic activity.It is believed that the microstructure of the composite film is responsible for improving the photocatalytic activity.

关键词： TiO2-SiO2 film Ag doping Microstructure Photocatalytic activity

作者: Ling-xiao Guan Nan zhao Ming-ming Yao

作者单位: School of Chemistry and Chemical Engineering, Ning Xia Teachers University, Guyuan 75600,China Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistryand Ch

会议类型: 国际会议

会议名称: 2012 2nd international Conference on Materials Science and Information Technology(2012第二届材料科学与信息技术国际会议)(MSIT2012)

会议地点: 西安

会议语种:英文

页码: 153-156

在线出版日期: 2012-08-24（万方平台首次上网日期，不代表论文的发表时间）