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Ion exchange and adsorption equilibrium studies on clinoptilolite, bentonite and vermiculite

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dc.contributor.author Inglezakis, VJ en
dc.contributor.author Stylianou, M en
dc.contributor.author Loizidou, M en
dc.date.accessioned 2014-03-01T01:33:40Z
dc.date.available 2014-03-01T01:33:40Z
dc.date.issued 2010 en
dc.identifier.issn 0022-3697 en
dc.identifier.uri http://hdl.handle.net/123456789/20528
dc.subject A. Microporous materials en
dc.subject D. Thermodynamic properties en
dc.subject.classification Chemistry, Multidisciplinary en
dc.subject.classification Physics, Condensed Matter en
dc.subject.other A. Microporous materials en
dc.subject.other Adsorption energies en
dc.subject.other Adsorption equilibria en
dc.subject.other Adsorption potential en
dc.subject.other BET analysis en
dc.subject.other Clinoptilolites en
dc.subject.other D. Thermodynamic properties en
dc.subject.other Dubinin-astakhov en
dc.subject.other Environmental applications en
dc.subject.other Experimental data en
dc.subject.other Ion exchange process en
dc.subject.other Natural minerals en
dc.subject.other Physical parameters en
dc.subject.other Zeolite clinoptilolite en
dc.subject.other Adsorption en
dc.subject.other Adsorption isotherms en
dc.subject.other Bentonite en
dc.subject.other Clay minerals en
dc.subject.other Ion exchange en
dc.subject.other Ion exchangers en
dc.subject.other Ions en
dc.subject.other Lead en
dc.subject.other Microporosity en
dc.subject.other Thermodynamic properties en
dc.subject.other Zeolites en
dc.subject.other Microporous materials en
dc.title Ion exchange and adsorption equilibrium studies on clinoptilolite, bentonite and vermiculite en
heal.type journalArticle en
heal.identifier.primary 10.1016/j.jpcs.2009.12.077 en
heal.identifier.secondary http://dx.doi.org/10.1016/j.jpcs.2009.12.077 en
heal.language English en
heal.publicationDate 2010 en
heal.abstract In the present paper three natural minerals used in many industrial and environmental applications namely zeolite clinoptilolite and the clays bentonite and vermiculite are studied by utilising ion exchange and adsorption. In particular, the Dubinin-Astakhov adsorption isotherm is used modified by introducing a solubility-normalized adsorption potential for studying the ion exchange process. The equation, is applied in experimental isotherms in order to determine adsorption energy and heterogeneity parameter for the ion exchange of Pb2+ in the natural minerals. The results indicate that the modified Dubinin-Astakhov adsorption isotherm represents the experimental data well and at the same time provides the heterogeneity parameter of the materials, which is an important adsorbent physical parameter as well as the adsorption energy. In order to deepen the study and link the results to the pore structure BET analysis is presented as well. (C) 2010 Elsevier Ltd. All rights reserved. en
heal.publisher PERGAMON-ELSEVIER SCIENCE LTD en
heal.journalName Journal of Physics and Chemistry of Solids en
dc.identifier.doi 10.1016/j.jpcs.2009.12.077 en
dc.identifier.isi ISI:000276011400023 en
dc.identifier.volume 71 en
dc.identifier.issue 3 en
dc.identifier.spage 279 en
dc.identifier.epage 284 en


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