Synthesis of Ion-Imprinted Bioadsorbents Based on Chitosan and its Usage in Al(III) Removal

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dc.authorid0000-0003-1535-4381
dc.contributor.authorÖzkahraman, Bengi
dc.date.accessioned2019-05-13T09:04:47Z
dc.date.available2019-05-13T09:04:47Z
dc.date.issued2018
dc.departmentHitit Üniversitesi, Mühendislik Fakültesi, Polimer Mühendisliği Bölümü
dc.description.abstractAs a main goal of the study, a new Al(III) ion-imprinted (Al(III)-IP) bioadsorbent beads were synthesized through crosslinking of chitosan (CS) by epichlorohydrin (ECH) using ion-imprinting strategy and the selective Al(III) ion adsorption from aqueous solutions properties of the bioadsorbent were investigated. In the tudy, the surface area of chitosan beads determined by Brunauer–Emmett–Teller, surface properties and morphology were analysed by Scanning Electron Microscope. Some properties of the bioadsorbent were further identified using Differential Scanning Calorimetry, Fourier Transform Infrared Spectroscopy and Thermal Gravimetric Analysis. In the adsorption studies, the adsorption capacities were found to be 48 and 12 mg/g for Al(III)-IP and non-imprinted polymer chitosan beads, respectively. The effect of pH, initial concentration and contact time of the metallic ion in the solution were evaluated on the adsorption behaviour of Al(III) and determined by Atomic Absorption Spectroscopy. In addition, the equilibrium adsorption data were examined with Langmuir and Freundlich isotherm models and it is found that adsorption data fits well with the Freundlich isotherm. The competitive adsorption studies showed clearly that the Al(III)-IP has a much higher adsorption capacity for Al(III) than the NIP with the same chemical composition, and has excellent selectivity for the targeted ion. Moreover, the regeneration and reuse studies showed that the Al(III)-IP beads showed no significant decrease in their adsorption capacities. Finally, according to the calculated thermodynamic parameters, the positive values of ?G°, ?S° and ?H° for Al(III)-IP chitosan beads indicated the endothermic nature of Al(III) adsorption. © 2017, Springer Science+Business Media New York.
dc.identifier.citationÖzkahraman, B. (2018). Synthesis of ion-imprinted bioadsorbents based on chitosan and its usage in Al (III) removal. Journal of Polymers and the Environment, 26(3), 1113-1120.
dc.identifier.doi10.1007/s10924-017-0996-3
dc.identifier.endpage1120en_US
dc.identifier.issn1566-2543
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage1113en_US
dc.identifier.urihttps://doi.org/10.1007/s10924-017-0996-3
dc.identifier.urihttps://hdl.handle.net/11491/1641
dc.identifier.volume26en_US
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer New York LLC
dc.relation.ispartofJournal of Polymers and the Environment
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBioadsorbenten_US
dc.subjectIon Imprinted Polymeren_US
dc.subjectMolecular Recognitionen_US
dc.titleSynthesis of Ion-Imprinted Bioadsorbents Based on Chitosan and its Usage in Al(III) Removal
dc.typeArticle

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