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Published on: May 11, 2017
Microwave-Assisted Pillaring of a Montmorillonite with Al-Polycations in Concentrated Media
Beatriz González1, Alba Helena Pérez2, Raquel Trujillano3
1Departamento de Química Inorgánica, Universidad de Salamanca, 37008 Salamanca, Spain. bei@usal.es.
Abstract:
A montmorillonite has been intercalated with Al3+ polycations, using concentrated solutions and clay mineral dispersions. The reaction has been assisted by microwave radiation, yielding new intercalated solids and leading to Al-pillared solids after their calcination at 500 °C. The solids were characterized by elemental chemical analysis, X-ray diffraction, FTIR spectroscopy, thermal analyses, and nitrogen adsorption. The evolution of the properties of the materials was discussed as a function of the preparation conditions. Microwave treatment for 2.5 min provided correctly pillared solids.
