Analysis and statistical modeling of copper ions biosorption onto calcined chicken eggshell

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dc.citation.epage680
dc.citation.issue5
dc.citation.rankM23
dc.citation.spage661
dc.citation.volume90
dc.contributor.authorMarković, Miljan
dc.contributor.authorGorgievski, Milan
dc.contributor.authorŠtrbac, Nada
dc.contributor.authorGrekulović, Vesna
dc.contributor.authorZdravković, Milica
dc.contributor.authorMarković, Marina
dc.contributor.authorStanković, Dalibor
dc.date.accessioned2025-06-20T06:56:45Z
dc.date.available2025-06-20T06:56:45Z
dc.date.issued2025
dc.description.abstractThe study on the possible use of calcined chicken eggshells as a biosorbent for copper ions removal from aqueous solutions, as well as some comparisons between raw and calcined eggshells, are presented in this paper. SEM-EDS and FTIR analysis of the calcined chicken eggshell samples were performed. In addition, the DTA-TGA analysis on raw chicken eggshells was performed. The influence of various process parameters, such as solution pH, stirring rate, biosorbent mass and Cu2+ concentration, was investigated. The kinetic analysis using four different empirical kinetic models was performed. The equilibrium analysis was done using the Langmuir, Freundlich and Temkin isotherm models. The process was optimized using the response surface methodology based on the Box–Behnken design (RSM-BBD). The obtained results are compared to our previous study on raw eggshells as a biosorbent for Cu2+ removal, in order to determine the justification for biosorbent modification (i.e., the calcination of raw eggshells).
dc.identifier.doi10.2298/JSC241107017M
dc.identifier.issn0352-5139
dc.identifier.issn1820-7421
dc.identifier.urihttps://repozitorijum.tfbor.bg.ac.rs/handle/123456789/5976
dc.language.isoen
dc.publisherSerbian Chemical Society
dc.rights.licenseCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceJournal of the Serbian Chemical Society
dc.subjectbiosorption
dc.subjectcalcined chicken eggshell
dc.subjectequilibrium
dc.subjectkinetics
dc.subjectBox–Behnken design
dc.titleAnalysis and statistical modeling of copper ions biosorption onto calcined chicken eggshell
dc.typearticle
dc.type.versionpublishedVersion

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