Effect of Si/Ti Molar Ratio on the Thermal Stability of Ordered Mesoporous TiO2/MCM-41 Materials

被引：0
作者：
Mihai, Gina-Dumitrita [1 ,2 ]
Meynen, Vera [1 ]
Bilba, Nicolae [2 ]
Cool, Pegie [1 ]
机构：
[1] Univ Antwerp, Lab Adsorpt & Catalysis, B-2610 Antwerp, Belgium
[2] Alexandru Ioan Cuza Univ, Lab Mat Chem, Iasi 700506, Romania
来源：
REVISTA DE CHIMIE | 2009年 / 60卷 / 04期
关键词：
MCM-41; one-pot synthesis; titanium dioxide catalyst; characterization; MOLECULAR-SIEVES; SILICA; SBA-15; DEPOSITION; ADSORPTION;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
TiO2/MCM-41 materials are prepared by an in-situ synthesis method. A clear influence of the calcination temperature and the TiO2 content of these materials on their stability and structural properties can be observed using N-2 adsorption-desorption measurements. UV-VIS diffuse reflectance and Raman spectra show that, the increase of the calcination temperature leads to an enhancement of TiO2 crystallization in MCM-41 materials causing a partial structural collapse at high temperatures and TiO2 contents.
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页码：360 / 362
页数：3
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