文献类型：期刊文献

英文题名：Study of phase transformation and crystal structure for 1D carbon-modified titania ribbons

作者：Zhou, Lihui[1];Zhang, Fang;Li, Jinxia

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2014

卷号：88

起止页码：21

外文期刊名：MATERIALS CHARACTERIZATION

收录：;EI(收录号：20140217172886);WOS:【SCI-EXPANDED(收录号:WOS:000331413200004)】；

基金：The authors gratefully acknowledge the financial support by the National Natural Science Foundation of China (Project No. 21176066) and the Research Center of Analysis and Test of East China University of Science and Technology.

语种：英文

外文关键词：TiO2; Ribbons; Carbon; Adsorption; Visible-light absorbance

摘要：One-dimensional hydrogen titanate ribbons were successfully prepared with hydrothermal reaction in a highly basic solution. A series of one-dimensional carbon-modified TiO2 ribbons were prepared via calcination of the mixture of hydrogen titanate ribbons and sucrose solution under N-2 flow at different temperatures. The phase transformation process of hydrogen titanate ribbons was investigated by in-situ X-ray diffraction at various temperatures. Besides, one-dimensional carbon-modified TiO2 ribbons calcined at different temperatures were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, nitrogen adsorption isotherms, diffuse reflectance ultraviolet-visible spectroscopy, and so on. Carbon-modified TiO2 ribbons showed one-dimensional ribbon crystal structure and various crystal phases of TiO2. After being modified with carbon, a layer of uniform carbon film was coated on the surface of TiO2 ribbons, which improved their adsorption capacity for methyl orange as a model organic pollutant. One-dimensional carbon-modified TiO2 ribbons also exhibited enhanced visible-light absorbance with the increase of calcination temperatures. (C) 2013 Elsevier Inc. All rights reserved.