Particle-Assisted Ion-Imprinted Cryogels for Selective CdII Ion Removal

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dc.contributor.authorTabaklı, Bekir
dc.contributor.authorTopcu, Aykut Arif
dc.contributor.authorDöker, Serhat
dc.contributor.authorUzun, Lokman
dc.date.accessioned2020-06-25T18:15:43Z
dc.date.available2020-06-25T18:15:43Z
dc.date.issued2015
dc.departmentKırıkkale Üniversitesi
dc.descriptionTOPCU, Aykut Arif/0000-0002-5434-4920; Doker, Serhat/0000-0002-4694-1960
dc.description.abstractHerein, we have reported particle-assisted ion-imprinted cryogels, which were synthesized by embedding finely crushed functional particles into cryogel structure under semifrozen conditions. These cryogels showed high adsorption efficiency and affinity against Cd-II ions. CdII adsorption performances were evaluated by varying some effective factors. In order to analyze the data, we applied Langmuir and Freundlich adsorption isotherms while using three different kinetic models, pseudo-first-order, pseudo-second-order, and WeberMorris as well. Also, the dimensionless equilibrium parameter (R-L), initial adsorption rate, and half-adsorption time were calculated. The results revealed that ion-imprinted-polymer (IIP) cryogels have homogeneously distributed cavities, which were formed by a particle-assisted imprinting process, and the theoretical maximum adsorption capacity (Q(max), 35.97 mu g/g) was very close to the experimental value (Q(eq), 32.15 mu g/g). In addition, R-L values for both IIP and nonimprinted-polymer cryogels showed favorability of the adsorption process, while kinetic models indicated that there were no diffusion limitations during the adsorption process, which means that the rate-limiting step was chemosorption of heavy-metal ions on binding sites (imprinted cavities or functional groups) with a high initial adsorption rate and a low half-adsorption time. Desorption, reusability, and selectivity studies were also conducted to state the performance of the cryogels. In conclusion, this promising approach provides a novel methodology for selective Cd-II removal from water sources.en_US
dc.description.sponsorshipScientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [2209]en_US
dc.description.sponsorshipL.U. warmly thanks to Prof. Dr. Adil Denizli for his valuable discussion and sharing facilities. B.T. thanks to The Scientific and Technological Research Council of Turkey for their financial support under Program 2209, Research Fellowship Programme for Undergraduate Students.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1021/ie504312e
dc.identifier.endpage1823en_US
dc.identifier.issn0888-5885
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-84923379694
dc.identifier.scopusqualityQ1
dc.identifier.startpage1816en_US
dc.identifier.urihttps://doi.org/10.1021/ie504312e
dc.identifier.urihttps://hdl.handle.net/20.500.12587/6226
dc.identifier.volume54en_US
dc.identifier.wosWOS:000349806600013
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofIndustrial & Engineering Chemistry Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleParticle-Assisted Ion-Imprinted Cryogels for Selective CdII Ion Removalen_US
dc.typeArticle

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