Paper Title:
Nanoporous TiO2/SiO2 Composite Prepared by a Combined Sol-Gel and Hybrid Method
  Abstract

Titania-silica nanocomposites with different TiO2/SiO2 compositions have been prepared by a sol-gel and hybrid method from tetraethylorthosilicate (TEOS) and tetrabutyl titanate(TBT) and β-Cyclodextrin as a pore-forming template. Drying and calcining of the hybrid xerogel can lead to the formation of nanoporous particles with surface areas in the range of 298-418 m2/g. The effect of the β-cyclodextrin concentration, the molar ratio of TiO2/SiO2 and the calcining temperature on the phase composition and structural properties of TiO2/SiO2 composites were also investigated. The results show that an increase in β-cyclodextrin concentration can lead to a decrease of the surface area and an increase of average pore size, which can be controlled by the amount of β- cyclodextrin in the hybrid sol.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
1497-1499
DOI
10.4028/www.scientific.net/KEM.368-372.1497
Citation
W. Y. Xu, L. B. Wei, M. B. Luo, "Nanoporous TiO2/SiO2 Composite Prepared by a Combined Sol-Gel and Hybrid Method", Key Engineering Materials, Vols. 368-372, pp. 1497-1499, 2008
Online since
February 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Qi Bing Chang, Jian Er Zhou, Yong Qing Wang, Guang Yao Meng
Abstract:Porous ZrO2 single crystals were prepared through a sol-gel-hydrothermal method and characterized by XRD, HR-TEM, SEM and FT-IR. The results...
451
Authors: Mohammad Reza Golobostanfard, Reza Ebrahimifard, Hossein Abdizadeh
Abstract:TiO2/ZnO Nanocomposite powders with different Zn/Ti ratios were synthesized via sol-gel method. The as prepared and calcined Titania...
993
Authors: Zhi Fang Zhang, Fang Yan Du, Xiang Rong Ma
Chapter 1: Materials Properties
Abstract:The nanocrystals Ce0.5Zr0.5O2 solid solutions with various morphologies and crystal structures have been...
1414
Authors: Ning Wu, Ya Nan Jiao, Zhi Qing Yuan, Yun Xing Liang, Li Chen
Chapter 1: Textile Science and Technology
Abstract:The Fe3+,La3+ co-doped polyvinyl acetate(PVAc)/titanium dioxide(TiO2) composite nanofibers were firstly prepared by combining sol-gel method...
14
Authors: Chun Lin Fu, Meng Huo, Wei Cai, Xiao Ling Deng
Abstract:BiFeO3 powders were prepared by sol-gel process and calcined at different temperatures. The DTA curve shows an obvious exothermic...
142