Equilibrium and kinetic studies of azo dye molecules biosorption on phycocyanin-extracted residual biomass of microalga Spirulina platensis

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dc.authoridKepekci, Remziye Aysun/0000-0002-7156-5741
dc.authoridDENIZ, FATIH/0000-0002-2771-2652
dc.contributor.authorDeniz, Fatih
dc.contributor.authorKepekci, Remziye Aysun
dc.date.accessioned2025-03-23T19:34:41Z
dc.date.available2025-03-23T19:34:41Z
dc.date.issued2016
dc.departmentSinop Üniversitesi
dc.description.abstractThe capability and mechanism of a model azo dye, C.I. Basic Red 46 removal by phycocyanin extraction residue of Spirulina platensis were investigated in this study. The biosorption data were analyzed using Freundlich, Langmuir, and Dubinin-Radushkevich (D-R) isotherm models. Langmuir model was more adequate to represent the data of biosorption equilibrium. The dye biosorption capacity was obtained as 23.06mgg(-1) for the biosorbent. The dye removal potential of phycocyanin-extracted biomass was very close to that of the virgin alga (25.46mgg(-1)). D-R model displayed that the dye was probably to be removed mainly via physical biosorption. The pseudo-first-order, pseudo-second-order, logistic, and intraparticle diffusion models were used for the evaluation of biosorption kinetics. The logistic model presented the best fit to the experimental kinetic data. The intraparticle diffusion model showed that this biosorption process was a complex process involving more than one mechanism. Thus, this waste microalga biomass can be used as a low-cost biosorbent for dye removal.
dc.identifier.doi10.1080/19443994.2015.1046945
dc.identifier.endpage12263
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986
dc.identifier.issue26
dc.identifier.scopus2-s2.0-84930154527
dc.identifier.scopusqualityQ3
dc.identifier.startpage12257
dc.identifier.urihttps://doi.org/10.1080/19443994.2015.1046945
dc.identifier.urihttps://hdl.handle.net/11486/5707
dc.identifier.volume57
dc.identifier.wosWOS:000371723600030
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Inc
dc.relation.ispartofDesalination and Water Treatment
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectAzo dye
dc.subjectBiosorption
dc.subjectPhycocyanin extraction
dc.subjectSpirulina platensis
dc.titleEquilibrium and kinetic studies of azo dye molecules biosorption on phycocyanin-extracted residual biomass of microalga Spirulina platensis
dc.typeArticle

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