Synthesis of Calix[4]arene Bearing Pyridinium Units Supported Silica Gel for Sorption of Arsenate and Dichromate Anions

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dc.contributor.authorSayın, Serkan
dc.contributor.authorÖzcan, Fatih
dc.contributor.authorYılmaz, Mustafa
dc.date.accessioned2020-03-26T18:05:06Z
dc.date.available2020-03-26T18:05:06Z
dc.date.issued2010
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn the present study two new silica gel-immobilized calix[4]arene polymers 4a and 4b have been prepared via modification of calix[4]arene, which contains pyridinium units 3a or 3b with silica-based polymer (ECHES) and investigated their sorption ability towards arsenate and dichromate anions at different pH. The prepared polymers were characterized by Fourier transform infrared spectroscopy, elemental analysis and thermal gravimetric analysis. Finally, the sorption properties of polymers (4a and 4b) towards dichromate and arsenate anions were reported. It was found that these calix[4]arene-based polymers exhibit a high level of sorption abilities towards dichromate and arsenate anions. It was observed that the percentage of arsenate removal reached 62-57% for polymer 4a and 59-50% for 4b when the pH of the aqueous solution was kept in the range of 3.5-4.5. The sorption of arsenate and dichromate anions by calix[4]arenes-based polymers indicates that the partially protonated pyridyl groups play a major role for the formation of hydrogen bonds and electrostatic interactions. In order to fully comprehend the selectivity of 4a, we also examined the retention of dichromate anions in the presence of Cl-, NO3 and SO42- anions at pH 1.5.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [107T873]; Research Foundation of Selcuk University (BAP)Selcuk Universityen_US
dc.description.sponsorshipWe would like to thank The Scientific and Technological Research Council of Turkey (TUBITAK Grant No. 107T873) and The Research Foundation of Selcuk University (BAP) for financial support of this work.en_US
dc.identifier.citationSayın, S., Özcan, F., Yılmaz, M., (2010). Synthesis of Calix[4]arene Bearing Pyridinium Units Supported Silica Gel for Sorption of Arsenate and Dichromate Anions. Desalination, 262, 99-105. DOI: 10.1016/j.desal.2010.05.053
dc.identifier.doi10.1016/j.desal.2010.05.053en_US
dc.identifier.endpage105en_US
dc.identifier.issn0011-9164en_US
dc.identifier.issn1873-4464en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage99en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.desal.2010.05.053
dc.identifier.urihttps://hdl.handle.net/20.500.12395/25304
dc.identifier.volume262en_US
dc.identifier.wosWOS:000282560100015en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSayın, Serkan
dc.institutionauthorÖzcan, Fatih
dc.institutionauthorYılmaz, Mustafa
dc.language.isoenen_US
dc.publisherELSEVIERen_US
dc.relation.ispartofDesalinationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCalix[4]areneen_US
dc.subjectSorptionen_US
dc.subjectArsenateen_US
dc.subjectChromateen_US
dc.subjectProton-Switchableen_US
dc.titleSynthesis of Calix[4]arene Bearing Pyridinium Units Supported Silica Gel for Sorption of Arsenate and Dichromate Anionsen_US
dc.typeArticleen_US

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