Preparation of new polysulfone capsules containing Cyanex 272 and their properties for Co(II) removal from aqueous solution

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dc.contributor.authorKazak, Omer
dc.contributor.authorTor, Ali
dc.contributor.authorAkin, Ilker
dc.contributor.authorArslan, Gulsin
dc.date.accessioned2020-03-26T19:06:45Z
dc.date.available2020-03-26T19:06:45Z
dc.date.issued2015
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this study, new polysulfone capsules containing Cyanex 272 (Cyanex 272@PSF capsules) were prepared by phase inversion technique for the sorption of Co(II) from aqueous solution. The characterization of the Cyanex 272@PSF capsules which were performed by using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and thermal gravimetric analysis (TGA) indicated that Cyanex 272 was successfully encapsulated by polysulfone. For the Cyanex 272@PSF capsules having the highest sorption efficiency, the encapsulation efficiency was determined as 7.2%. The batch sorption experiments showed that removal of Co(II) from aqueous solutions occurred through the cation-exchange and chelation mechanisms and maximum removal was achieved at an initial pH of 8.0 (final pH of 5.9). The Cyanex 272@PSF capsules produced with dispersed phase containing 2.0% of Cyanex 272 (by wt.) provided the highest Co(II) removal. The sorption equilibrium time was attained within 120 min. By confirming the non-linear Chi-square (x(2)) statistical test, Langmuir isotherm model was the best fit model. Langmuir sorption capacity (Q(o)) and sorption constant (b) were 2.014 mg/g and 0.281 L/mg, respectively. The regenerated capsules could be used three times with no change in their sorption capacities. Based on the experiments performed at initial pH of 8.0 for other metal ions, including Ni(II), Pb(II) and Cd(II), sorption ability of Cyanex 272@PSF capsules was in the order: Co(II) approximate to Ni(II)>Cd(II)>Pb( II). Consequently, Cyanex 272@PSF capsules have potential for removing Co(II) from aqueous solutions. (C) 2015 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.jece.2015.06.007en_US
dc.identifier.endpage1661en_US
dc.identifier.issn2213-2929en_US
dc.identifier.issn2213-3437en_US
dc.identifier.issue3en_US
dc.identifier.pmid#YOKen_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1654en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jece.2015.06.007
dc.identifier.urihttps://hdl.handle.net/20.500.12395/32459
dc.identifier.volume3en_US
dc.identifier.wosWOS:000217996100027en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCI LTDen_US
dc.relation.ispartofJOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERINGen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectSorptionen_US
dc.subjectPolysulfone capsuleen_US
dc.subjectCobalt removalen_US
dc.subjectCyanex 272en_US
dc.titlePreparation of new polysulfone capsules containing Cyanex 272 and their properties for Co(II) removal from aqueous solutionen_US
dc.typeArticleen_US

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