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Open AccessArticle

Microwave-Assisted Pillaring of a Montmorillonite with Al-Polycations in Concentrated Media

1
Departamento de Química Inorgánica, Universidad de Salamanca, 37008 Salamanca, Spain
2
Departamento de Química Aplicada, Universidad Pública de Navarra, 31006 Pamplona, Spain
*
Author to whom correspondence should be addressed.
Materials 2017, 10(8), 886; https://doi.org/10.3390/ma10080886
Received: 5 July 2017 / Revised: 28 July 2017 / Accepted: 29 July 2017 / Published: 1 August 2017
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. View Full-Text
Keywords: Al-PILC; Keggin polycation; concentrated media; microwave radiation; pillared montmorillonite Al-PILC; Keggin polycation; concentrated media; microwave radiation; pillared montmorillonite
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González, B.; Pérez, A.H.; Trujillano, R.; Gil, A.; Vicente, M.A. Microwave-Assisted Pillaring of a Montmorillonite with Al-Polycations in Concentrated Media. Materials 2017, 10, 886.

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