Publication: FT-IR spectra of natural loughlinite (Na-sepiolite) and adsorption of pyrimidine on loughlinite
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Date
2004-11-01
Journal Title
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Publisher
ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Abstract
FT-IR spectroscopy has been used to characterise natural loughlinite and the adsorption of pyrimidine. A comparison of the spectra of loughlinite and sepiolite are given. The adsorption of pyrimidine was on the loughlinite Lewis acid cites through the pyrimidine lone pairs. Moreover. some of the adsorbed pyrimidine molecules may coordinate to surface SiOH groups. (C) 2004 Elsevier B.V. All rights reserved.
Description
Keywords
IR spectroscopy, clay minerals, loughlinite, adsorption, pyrimidine, diazines, MODEL-CALCULATIONS, SURFACE-ACIDITY, PYRIDINE, OXIDES, CYCLOHEXYLAMINE, MONTMORILLONITE, PALYGORSKITE, SPECTROSCOPY, DESORPTION, COMPLEXES