Effects of polymer media on electrospun mesoporous titania nanofibers

被引：39

作者：

Chen, Jiun-Yu ^{[1
]}

Chen, Hung-Cheng ^{[1
]}

Lin, Jiun-Nan ^{[1
]}

Kuo, Changshu ^{[2
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Ctr MicroNano Sci & Technol, Lab Nano Constructed Mat, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Frontier Mat & MicroNano Sci & Technol Ctr, Tainan 701, Taiwan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2008年 / 107卷 / 2-3期

关键词：

nanostructures; sintering; electron diffraction; crystal structure;

D O I：

10.1016/j.matchemphys.2007.08.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Titania nanofibers were fabricated via a polymer-assisted electrospinning technique. A mixture of titanium tetraisopropoxide and poly(vinyl pyrrolidone) in an alcohol medium utilized as the sol-gel solution was ejected through a needle under a strong electrical field. Accompanied by solvent evaporation and sol-gel solidification, a highly charged polymer jet induces the formation of polymer/metal oxide nanofibers before reaching the ground electrode. The sintering process was carried out afterward to encourage the crystallization and phase transformation of titania, as well as the removal of polymer domains. Electrospinning processes and sintered titania nanofibers exhibited a strong relationship in the presence of polymer media. Process parameters and the characterizations of nanoconstructed titania, including fiber morphologies and mesoporous crystal structures, were investigated and discussed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：480 / 487

页数：8

共 35 条

[1] Spectroscopic investigation of the composition of electrospun titania nanofibers [J].