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Hydrogen Titanate Nanofibers Covered with Anatase Nanocrystals: A Delicate Structure Achieved by the Wet Chemistry Reaction of the Titanate Nanofibers

By Huai Yong Zhu, Xueping Gao, Ying Lan, Deying Song, Yingxin Xi and Jincai Zhao

Abstract

Hydrogen titanate nanofibers synthesized by a hydrothermal reaction, are chemically reactive, readily reacting with dilute acid. This reaction is a topochemical process in which in situ phase transition from H-titanate to anatase takes place and the product retains the fibril morphology. The extent of this reaction can be precisely controlled, allowing us to achieve a delicate composite structure at nanoscale: long titanate fibers of 40-100 nm thick and up to 30 m long covered with anatase nanocrystals of 10-30 nm. The structure has desired photocatalytic properties and can be separated readily after use. This study demonstrates new opportunities to create delicate inorganic nanostructures with advanced functions by wet chemical reactions

Publisher: American Chemical Society
Year: 2004
DOI identifier: 10.1021/ja048204t
OAI identifier: oai:eprints.qut.edu.au:11141
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