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Al-Pillaring of Saponite with the Al Polycation [Al13(OH)24 (H2O)24]15+ Using a New Synthetic Route

Published online by Cambridge University Press:  01 January 2024

Miguel Angel Vicente  and
Jean-François Lambert
Miguel Angel Vicente*
Affiliation:
Departamento de Química Inorgánica, Universidad de Salamanca, Plaza de la Merced, s/n., 37008-Salamanca, Spain
Jean-François Lambert
Affiliation:
Laboratoire de Reactivité de Surface, Université Pierre et Marie Curie, 4 Place Jussieu, Tour 54, Casier 178, 75252 Paris Cedex 05, France
*
*E-mail address of corresponding author: [email protected]
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Abstract

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The intercalation of a saponite with the Al polycation [Al13(OH)24(H2O)24]15+ is described. This polycation is obtained by reaction of alumina with Al chloride. The intercalation is achieved by reaction of very concentrated solutions of this polycation with the clay in powder form. Solids with a basal spacing of 18.9 Å were obtained in this way, stable up to 700°C (17.0 Å). The Langmuir surface area of the intercalated solid was 366 m2/g, and that value decreases to 119, 138 and 125 m2/g for the solids pillared at 500, 600 and 700°C, respectively.

Keywords

Al-pillaringNanocompositePillared ClaySaponiteSurface Area
Type
Research Article
Information
Clays and Clay Minerals , Volume 51 , Issue 2 , April 2003 , pp. 168 - 171
Copyright
Copyright © 2003, The Clay Minerals Society

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