A new statistical physics model to interpret the binary adsorption isotherms of lead and zinc on activated carbon

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dc.authoridKnani, Salah/0000-0001-9617-810X
dc.authoridBen Lamine, Abdelmottaleb/0000-0002-8225-8464
dc.authoridDepci, Tolga/0000-0001-9562-8068
dc.authorwosidKnani, Salah/KLZ-9572-2024
dc.authorwosidDepci, Tolga/A-2867-2016
dc.contributor.authorSellaoui, Lotfi
dc.contributor.authorDepci, Tolga
dc.contributor.authorKul, Ali Riza
dc.contributor.authorKnani, Salah
dc.contributor.authorBen Lamine, Abdelmottaleb
dc.date.accessioned2024-08-04T20:41:26Z
dc.date.available2024-08-04T20:41:26Z
dc.date.issued2016
dc.departmentİnönü Üniversitesien_US
dc.description.abstractNew statistical physicochemical interpretations of an adsorption process at molecular level were developed to explain the binary adsorption isotherms of lead and zinc ions on activated carbon derived from Styrax officinalis seeds (Balikesir, Turkey) and a commercial activated carbon at different temperatures, 298, 308 and 318 K. The extended Hill model was developed to explain heterogeneous model in terms of the grand canonical ensemble in statistical physics. Steric and energetic parameters, like the numbers of ions per site n(1) and n(2), the densities of receptor sites N-M1 and N-M2 and the adsorption energies (-epsilon(1)) and (-epsilon(2)) were directly obtained from the fitting of the experimental adsorption isotherms by numerical simulation to describe the process. The simulation results suggested that two adsorbates per site were anchored on activated carbon surface. The magnitudes of the calculated adsorption energies indicated that Zn2+ and Pb2+ were physically adsorbed by the activated carbon. Thermodynamic potential functions, namely entropy, enthalpy and internal energy were calculated to explain the order and disorder of the adsorbate at the adsorbent surface during the binary adsorption process. The values of the free enthalpy and the internal energy indicated spontaneous adsorption process. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipInonu University [2015/54]en_US
dc.description.sponsorshipThis research is partially funded by Inonu University (Project Number: 2015/54). The authors would like to thank Inonu University for their financial support in analyzing the activated carbons. Also thanks to Dr. Yunus Onal for helping to prepare the activated carbon and analysis.en_US
dc.identifier.doi10.1016/j.molliq.2015.12.080
dc.identifier.endpage230en_US
dc.identifier.issn0167-7322
dc.identifier.issn1873-3166
dc.identifier.scopus2-s2.0-84954306160en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage220en_US
dc.identifier.urihttps://doi.org/10.1016/j.molliq.2015.12.080
dc.identifier.urihttps://hdl.handle.net/11616/97117
dc.identifier.volume214en_US
dc.identifier.wosWOS:000371650800029en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofJournal of Molecular Liquidsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBinary adsorptionen_US
dc.subjectNew statistical physics modelen_US
dc.subjectActivated carbonen_US
dc.subjectLead and zincen_US
dc.subjectThermodynamic potential functionsen_US
dc.titleA new statistical physics model to interpret the binary adsorption isotherms of lead and zinc on activated carbonen_US
dc.typeArticleen_US

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