Effect of Heat Treatment on the Microstructure of TiO2 Nanofibers Prepared by Refluxing in Basic Solution

摘要：

　　Using tetrabutyltitanate as titanium source,amorphous TiO2 powder was firstly prepared by a sol-miniemulsion-gel method.Prepared powder was refluxed in basic solution and then calcined at different temperatures to synthesize titania nanofibers.The prepared samples were characterized by XRD,TG-DSC,FT-IR and TEM.The results show that when the heat-treatment temperature increases,crystallization of the titania nanofibers occurs with two Ti-OH bonds dehydrate,meanwhile morphology of the fibers is gradually obvious and ratio of length to diameter decreases.When the temperature was raised above 550 ℃,titania nanofibers were sintered.

关键词： Titanium dioxide Nanofibers Reflux Heat treatment

作者: Shi-ying Zhang Fan-ping Xiao Luo-yi Wu Cheng-yong Li Zhen-hua Chen

作者单位: College of Materials Science and Engineering,Hunan University,Changsha 410082,Hunan,China;Department College of Materials Science and Engineering,Hunan University,Changsha 410082,Hunan,China Department of Biological Engineering and Environmental Science,Changsha University,Changsha 410003,H

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 800-802

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）