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...
Main Authors: | , , |
---|---|
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 |
id |
doaj-a78a05ad668e4da291e713a4734d7923 |
---|---|
record_format |
Article |
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 |
work_keys_str_mv |
AT vrakic astudyoftheadsorptionthermodynamicsofnhexaneonionexchangedxzeolites AT vdondur astudyoftheadsorptionthermodynamicsofnhexaneonionexchangedxzeolites AT rhercigonja astudyoftheadsorptionthermodynamicsofnhexaneonionexchangedxzeolites AT vrakic studyoftheadsorptionthermodynamicsofnhexaneonionexchangedxzeolites AT vdondur studyoftheadsorptionthermodynamicsofnhexaneonionexchangedxzeolites AT rhercigonja studyoftheadsorptionthermodynamicsofnhexaneonionexchangedxzeolites |
_version_ |
1725824391865958400 |