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Adsorption Of Isoniazid Onto Sepiolite-Palygorskite Group Of Clays: An IR Study

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Author
Akyüz, Sevim
Akyüz, Tanıl
Akalın, Elif
Type
Article
Date
2010-04
Language
en_US
Metadata
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Abstract
The adsorption of isoniazid (INH) on sepiolite, loughlinite (natural Na-sepiolite) and palygorskite from Anatolia was investigated by FT-IR spectroscopy. Experimental results indicated that INH molecules, adsorbed on sepiolite-palygorskite group of clays, are coordinated to surface hydroxyls by H-bonding interaction through the pyridine ring nitrogen lone pairs. Moreover, some of the adsorbed INH molecules may enter the interior channels of the sepiolite-palygorskite structure and involve H-bonding interaction with zeolitic water. Some intensity and frequency changes in the OH stretching band of surface hydroxyls (Si-OH) of the INH-treated sepiolite and loughlinite were observed. However, this band is found to be less affected by the adsorption of isoniazid in the case of palygorskite, probably because the surface Si-OH groups in palygorskite appear to be less abundant than in sepiolite or loughlinite. (C) 2010 Elsevier B.V. All rights reserved.
Subject
Adsorption
clays
IR spectroscopy
Isoniazid
Loughlinite
Palygorskite
Sepiolite
model-calculations
montmorillonite
loughlinite
intercalation
emme
killer
model hesaplamaları
ortaya ekleme
URI
http://hdl.handle.net/11413/1314
Collections
  • Makaleler / Articles [293]
  • Pubmed Publications [149]
  • Scopus Publications [724]
  • WoS Publications [1016]

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Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS