Publication:
Adsorption and interaction of 2-aminopyridine with loughlinite (Na-sepiolite) from Anatolia

Date
2008-06
Authors
Akyüz, Sevim
Akyüz, Tanıl
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ASIAN JOURNAL OF CHEMISTRY, 11/100 RAJENDRA NAGAR, SECTOR 3,, SAHIBABAD 201 005, GHAZIABAD, INDIA
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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.

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Keywords
adsorption , aminopyridine , clay minerals , IR spectroscopy , loughlinite , sepiolite , model-calculations , spectra , montmorillonite , intercalation , palygorskite , emme , aminopiridin , kil mineralleri , IR spektroskopisi , sepiyolit , model hesaplamaları
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