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Revista de Chimie (Rev. Chim.), Year 2009, Volume 60, Issue 4,





GINA-DUMITRITA MIHAI, VERA MEYNEN, NICOLAE BILBA, PEGIE COOL
Effect of Si/Ti Molar Ratio on the Thermal Stability of Ordered Mesoporous TiO2/MCM-41 Materials

Abstract:

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 N2 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. Keywords: MCM-41, one-pot synthesis, titanium dioxide catalyst, characterization


Issue: 2009, Volume 60, Issue 4
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