Thermodynamic analysis and influence of the pH value on the biosorption of copper ions onto hazelnut shells

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dc.citation.epage298
dc.citation.rankM33
dc.citation.spage294
dc.contributor.authorMarković, Marina
dc.contributor.authorGorgievski, Milan
dc.contributor.authorŠtrbac, Nada
dc.contributor.authorGrekulovic, Vesna
dc.contributor.authorMarković, Miljan
dc.contributor.authorZdravković, Milica
dc.contributor.authorJovanović, Dalibor
dc.date.accessioned2024-12-14T09:56:35Z
dc.date.available2024-12-14T09:56:35Z
dc.date.issued2024
dc.description.abstractThe thermodynamic analysis of the copper ions biosorption process using hazelnut shells as a biosorbent, as well as the influence of the pH value on the biosorption capacity, are presented in this paper. The thermodynamic parameters that were analyzed are: activation energy (Ea), change in Gibbs free energy (∆G0), enthalpy (∆H0), and entropy (∆S0), under standard conditions, at different temperatures (25oC, 35oC, and 45oC). The values of the calculated thermodynamic parameters indicate that the biosorption of copper ions onto hazelnut shells is favored at temperatures lower than the room temperature, that the process itself is endothermic and disordered, in which copper ions are bound to the surface of the hazelnut shell by chemisorption. The pH analysis showed that the pH value of the solution has a significant effect on the biosorption capacity, whereby the biosorption capacity increases proportionally with the increase in the pH value of the solution.
dc.identifier.isbn978-86-6305-152-2
dc.identifier.urihttps://repozitorijum.tfbor.bg.ac.rs/handle/123456789/5914
dc.language.isoen
dc.publisherUniversity of Belgrade, Technical Faculty in Bor
dc.rights.licenseCC-BY-NC-ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceProceedings [Elektronski izvor] - 31st International conference Ecological Truth & Environmental Research - EcoTER'24, Sokobanja, Serbia, 18-21 June 2024
dc.subjectthermodynamic analysis
dc.subjectbiosorption
dc.subjectcopper ions
dc.subjectpH value
dc.subjecthazelnut shells
dc.titleThermodynamic analysis and influence of the pH value on the biosorption of copper ions onto hazelnut shells
dc.typeconferenceObject
dc.type.versionpublishedVersion

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