Morphology and crystalline phase study of electrospun TiO2-SiO2 nanofibres

被引：151

作者：

Ding, B

Kim, H ^{[1
]}

Kim, C

Khil, M

Park, S

机构：

[1] Chonbuk Natl Univ, Dept Adv Organ Mat Engn, Chon Ju 561756, South Korea

[2] Chonbuk Natl Univ, Dept Text Engn, Chon Ju 561756, South Korea

[3] Korea Res Inst Chem Technol, Adv Mat Div, Taejon 305600, South Korea

来源：

NANOTECHNOLOGY | 2003年 / 14卷 / 05期

关键词：

D O I：

10.1088/0957-4484/14/5/309

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanofibres of TiO2-SiO2 (Ti:Si = 50:50 mol%) with diameters of 50-400 nm were prepared by calcining electrospun nanofibres of polyvinyl acetate (PVac)/titania-silica composite as precursor. These PVac/titania-silica hybrid nanofibres were obtained from a homogenous solution of PVac with a sol-gel of titanium isopropoxide (TiP) and tetraethoxysilane by using the electrospinning technique. The nanofibres were characterized by scanning electron microscopy (SEM), wide-angle x-ray diffraction (WAXD), Fourier transform infrared (FTIR) spectroscopy and Brunauer-Emmett-Teller (BET) surface area. SEM, WAXD and FTIR results indicated that the morphology and crystalline phase of TiO2-SiO2 nanofibres were strongly influenced by the calcination temperature and the content of titania and silica in the nanofibres. Additionally, the BET results showed that the surface area of TiO2-SiO2 nanofibres was decreased with increasing calcination temperature and the content of titania and silica in nanofibres.

引用

页码：532 / 537

页数：6

共 35 条

[1] Crystallization kinetics and morphology of poly(beta-hydroxybutyrate) and poly(vinyl acetate) blends [J].