Publication: Adsorption and interaction of 2-aminopyridine with loughlinite (Na-sepiolite) from Anatolia
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Date
2008-06
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ASIAN JOURNAL OF CHEMISTRY, 11/100 RAJENDRA NAGAR, SECTOR 3,, SAHIBABAD 201 005, GHAZIABAD, INDIA
Abstract
FT-IR spectroscopy has been used to characterize adsorption and interaction of 2-aminopyridine by loughlinite, which belongs to palygorskite-sepiolite group of phyllosilicates class of clay minerals. The spectroscopic results indicate generation of 2-aminopyridinium cations. Cationic and neutral surface species adsorbed on loughlinite are coordinated to Bronsted acidic sites and surface hydroxyls (by H-bonding interaction through pyridine ring nitrogen lone pairs), respectively. It must be noted that the adsorption of 2-aminopyridine affected the hydroxyl group vibrations of loughlinite.
Description
Keywords
adsorption, aminopyridine, clay minerals, IR spectroscopy, loughlinite, sepiolite, model-calculations, spectra, montmorillonite, intercalation, palygorskite, emme, aminopiridin, kil mineralleri, IR spektroskopisi, sepiyolit, model hesaplamaları