Synthesis and characterisation of clay-supported titania photocatalysts

被引:51
作者
Daniel, Lisa M. [1 ]
Frost, Ray L. [1 ]
Zhu, Huai Yong [1 ]
机构
[1] Queensland Univ Technol, Sch Phys & Chem Sci, Inorgan Mat Res Program, Brisbane, Qld 4001, Australia
基金
澳大利亚研究理事会;
关键词
titania; photocatalyst; laponite; colloid; surfactant; hydrothermal treatment;
D O I
10.1016/j.jcis.2007.08.023
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This study examines the use of laponite, a synthetic smectite, which forms exfoliated silicate layers when dispersed in water, as an inorganic support for titania nanocrystals. Titania nanocrystals are prepared prior to addition to the clay dispersion, by a sol-gel synthesis incorporating a microwave hydrothermal step. The characteristics of the resultant structure such as titania phase, crystallite size, and particulate size are examined 4 via X-ray diffraction (XRD), transmission electron spectroscopy (TEM), and infrared spectroscopy. (C) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码:72 / 79
页数:8
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