Structural properties and photoluminescence of TiO2 nanofibers were fabricated by electrospinning
- 作者：Jianguo Zhao ; Changwen Jia ; Huigao Duan ; Hui Li ; Erqing Xie
- 关键词：Oxide materials ; Chemical synthesis ; Crystal structure ; Luminescence ; Scanning electron microscopy
- 刊名：Journal of Alloys and Compounds
- 出版年：2008
- 期刊代码：45_09258388
- 类别：ms
- 出版时间：11 August 2008
- 卷：461
- 期：1-2
- 页码：447-450
- 文件大小：586 K
摘要
Titania (TiO2)/PVP composite nanofibers were prepared with electrospinning method followed by calcining in air at different temperatures. The nanofibers were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectrum and photoluminescence (PL) spectrum. The results showed that the nanofibers are uniform and have an average diameter of 
40 nm. It is also found that the photoluminescence properties were largely influenced by different crystalline structure. The nanofibers yield visible photoluminescence peaking at 550 nm for anatase phase and near infrared photoluminescence peaking at 820 nm for rutile phase.
40 nm. It is also found that the photoluminescence properties were largely influenced by different crystalline structure. The nanofibers yield visible photoluminescence peaking at 550 nm for anatase phase and near infrared photoluminescence peaking at 820 nm for rutile phase.