Removal of chromate and phosphate anion from aqueous solutions using calix[4]aren receptors containing proton switchable units

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dc.contributor.authorErtul, Şeref
dc.contributor.authorBayrakçı, Mevlüt
dc.contributor.authorYılmaz, Mustafa
dc.date.accessioned2020-03-26T18:04:55Z
dc.date.available2020-03-26T18:04:55Z
dc.date.issued2010
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn the present study four new calix[4]arene amide ionophores (4-7) have been prepared by aminolysis of calix[4]arene diester (3) and investigated their extraction ability toward phosphate and dichromate anions at different pH. The H-1 NMR data showed that the synthesized compounds exist in the cone conformation. Liquid-liquid extraction experiments have been performed to evaluate the dichromate and phosphate anions extraction efficiency of both calix[4]arene bearing amide-pyridinium units (4-7) and the calix[4]arene derivative bearing aminomethyl pyridinium units (8, 9). It was observed that, compounds 4-7 exhibited lower affinity toward phosphate ions than the calix[4]arene derivative bearing amine pyridinium units (8, 9). The extraction of phosphate and dichromate anions by these compounds indicates that the partially protonated pyridyl or amino groups play the major role for the formation of hydrogen bonds and electrostatic interactions. (C) 2010 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipResearch Laboratory of Selcuk UniversitySelcuk University; S.U. Research Foundation (BAP)Selcuk Universityen_US
dc.description.sponsorshipThe authors gratefully acknowledge support of this study by Research Laboratory of Selcuk University and thank S.U. Research Foundation (BAP) for financial support of this study.en_US
dc.identifier.citation
dc.identifier.doi10.1016/j.jhazmat.2010.05.121en_US
dc.identifier.endpage1065en_US
dc.identifier.issn0304-3894en_US
dc.identifier.issn1873-3336en_US
dc.identifier.issue01.03.2020en_US
dc.identifier.pmid20579808en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1059en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jhazmat.2010.05.121
dc.identifier.urihttps://hdl.handle.net/20.500.12395/25218
dc.identifier.volume181en_US
dc.identifier.wosWOS:000280601300139en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofJOURNAL OF HAZARDOUS MATERIALSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCalixareneen_US
dc.subjectDichromate anionen_US
dc.subjectPhosphate anionen_US
dc.subjectLiquid-liquid extractionen_US
dc.titleRemoval of chromate and phosphate anion from aqueous solutions using calix[4]aren receptors containing proton switchable unitsen_US
dc.typeArticleen_US

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