A Liquid-Liquid Interface Process for Fabricating TiO2 Nanofiber Membrane with High Photocatalytic Activity

A membrane consisting of TiO2 nanofibers was successfully fabricated through a simple solvothermal water/n-hexane interface reaction of tetra-n-butyl titanate with NaOH followed by post treatments of acid washing and calcination. Tetra-n-butyl titanate reacts with NaOH at the interface to form high-...

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Bibliographic Details
Published in:Chinese journal of chemistry 2012-07, Vol.30 (7), p.1469-1473
Main Author: 朱连文 任志刚 郎建平
Format: Article
Language:English
Subjects:
lquid-liquid interface reaction
membrane
Nanotechnology
NaOH
photocatalytic degradation
TiO2 nanofiber
催化
制作过程
横向尺寸
活性二氧化钛
界面反应
纳米纤维膜
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Summary:A membrane consisting of TiO2 nanofibers was successfully fabricated through a simple solvothermal water/n-hexane interface reaction of tetra-n-butyl titanate with NaOH followed by post treatments of acid washing and calcination. Tetra-n-butyl titanate reacts with NaOH at the interface to form high-quality nanofibers with lateral dimensions below 200 nm and longitudinal dimensions of several tens of micrometers. The membrane is formed by the interpenetration and overlapping of the flexible nanofibers and distributed by holes with sizes ranging from several tens of nanometers to several hundreds of nanometers. Because of the porous structure, this nanofiber membrane exhibited a high efficiency in the photodecomposition of dyes in water.
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.201200178