A study of the adsorption thermodynamics of n-hexane on ion-exchanged X zeolites

In this work, the free eneregy changes and entropy changes of adsorption of n-hexane on zeolites of the MxNa87-2xX (M = Co, Ni, Zn, Cd) type were determined using their isosteric sorption heats. It was found that the exchange of Na+ ions in NaX with bivalent cations (Co, Ni, Zn, Cd) significantly al...

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Main Authors: V. RAKIC, V. DONDUR, R. HERCIGONJA
Format: Article
Language:English
Published: Serbian Chemical Society 2005-12-01
Series:Journal of the Serbian Chemical Society
Subjects:
Online Access:http://www.shd.org.yu/HtDocs/SHD/vol70/No12/JSCS_V70_No12-05.pdf
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spelling doaj-a78a05ad668e4da291e713a4734d79232020-11-24T22:05:51ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51392005-12-01701214091418A study of the adsorption thermodynamics of n-hexane on ion-exchanged X zeolitesV. RAKICV. DONDURR. HERCIGONJAIn this work, the free eneregy changes and entropy changes of adsorption of n-hexane on zeolites of the MxNa87-2xX (M = Co, Ni, Zn, Cd) type were determined using their isosteric sorption heats. It was found that the exchange of Na+ ions in NaX with bivalent cations (Co, Ni, Zn, Cd) significantly alters the adsorption characteristics of NaX zeolite. The free energy changes and entropy changes of n-hexane adsorption were dependent on the surface coverage and on the nature of the charge-balancing cation. The specific influence of the exchanged cations on the free energy changes and entropy changes of sorption of n-hexane originates from the size, location and electronic configuration of the cation.http://www.shd.org.yu/HtDocs/SHD/vol70/No12/JSCS_V70_No12-05.pdfX zeoliten-hexaneadsorption
collection DOAJ
language English
format Article
sources DOAJ
author V. RAKIC
V. DONDUR
R. HERCIGONJA
spellingShingle V. RAKIC
V. DONDUR
R. HERCIGONJA
A study of the adsorption thermodynamics of n-hexane on ion-exchanged X zeolites
Journal of the Serbian Chemical Society
X zeolite
n-hexane
adsorption
author_facet V. RAKIC
V. DONDUR
R. HERCIGONJA
author_sort V. RAKIC
title A study of the adsorption thermodynamics of n-hexane on ion-exchanged X zeolites
title_short A study of the adsorption thermodynamics of n-hexane on ion-exchanged X zeolites
title_full A study of the adsorption thermodynamics of n-hexane on ion-exchanged X zeolites
title_fullStr A study of the adsorption thermodynamics of n-hexane on ion-exchanged X zeolites
title_full_unstemmed A study of the adsorption thermodynamics of n-hexane on ion-exchanged X zeolites
title_sort study of the adsorption thermodynamics of n-hexane on ion-exchanged x zeolites
publisher Serbian Chemical Society
series Journal of the Serbian Chemical Society
issn 0352-5139
publishDate 2005-12-01
description In this work, the free eneregy changes and entropy changes of adsorption of n-hexane on zeolites of the MxNa87-2xX (M = Co, Ni, Zn, Cd) type were determined using their isosteric sorption heats. It was found that the exchange of Na+ ions in NaX with bivalent cations (Co, Ni, Zn, Cd) significantly alters the adsorption characteristics of NaX zeolite. The free energy changes and entropy changes of n-hexane adsorption were dependent on the surface coverage and on the nature of the charge-balancing cation. The specific influence of the exchanged cations on the free energy changes and entropy changes of sorption of n-hexane originates from the size, location and electronic configuration of the cation.
topic X zeolite
n-hexane
adsorption
url http://www.shd.org.yu/HtDocs/SHD/vol70/No12/JSCS_V70_No12-05.pdf
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