Title of article
Surface hydroxyls in porous silica: a Raman spectroscopy study
Author/Authors
Anedda، نويسنده , , A. and Carbonaro، نويسنده , , C.M and Clemente، نويسنده , , F. and Corda، نويسنده , , L. and Corpino، نويسنده , , R. and Ricci، نويسنده , , P.C.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
4
From page
1069
To page
1072
Abstract
The surface vibrational properties of sol–gel synthesized porous silica are investigated as a function of sample porosity. By considering the Raman contribution of the physisorbed water, the analysis of the fundamental O–H stretching range (3000–3800 cm−1) displays the vibrational modes related to Si–OH species on the surface of the porous matrix. The sample porosity affects the H-bonding interaction between OH-related groups and influences the hydrophilic character of the surface: a curvature effect can be hypothesized.
Keywords
Sol–gel , Porous silica , surface reactivity , Silanol , Hydroxyl , Raman spectroscopy
Journal title
Materials Science and Engineering C
Serial Year
2003
Journal title
Materials Science and Engineering C
Record number
2098243
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