Use of beta-cyclodextrin and starch based polymers for sorption of Congo red from aqueous solutions

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dc.contributor.authorOzmen, Elif Yimaz
dc.contributor.authorYimaz, Mustafa
dc.date.accessioned2020-03-26T17:18:44Z
dc.date.available2020-03-26T17:18:44Z
dc.date.issued2007
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractTwo starch-based and a P-cyclodextrin (beta-CD)-based polymers were synthesized using 4,4'-methylene-bis-phenyldiisocyanate (MDI) or hexamethylenediisocyanate (HMDI) as a cross linking agent in dry dimethylformamide and used as a sorbent for the removal of Congo red from aqueous solutions. The cross-linked polymers were characterized by Fourier transform infrared spectroscopy, thermogravimetric and differential scanning calorimetric analysis. The dye adsorption experiments were carried out by using batch and recycling column procedure. The effects of initial pH (pH(0)). the contact time and the initial dye concentration were changed to obtain the best experimental conditions. The pH(0) of the dye solution strongly affected the chemistry of both the dye molecules and polymer 3 in an aqueous solution. The effective pH(0) was 7.0 for adsorption on polymer 3. The equilibrium adsorption data were interpreted using Langmuir and Freundlich models. The adsorption of Congo red was better represented by the Freundlich equation. (C) 2007 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jhazmat.2007.02.042en_US
dc.identifier.endpage310en_US
dc.identifier.issn0304-3894en_US
dc.identifier.issn1873-3336en_US
dc.identifier.issue01.02.2020en_US
dc.identifier.pmid17363149en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage303en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jhazmat.2007.02.042
dc.identifier.urihttps://hdl.handle.net/20.500.12395/21727
dc.identifier.volume148en_US
dc.identifier.wosWOS:000249312500040en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherELSEVIERen_US
dc.relation.ispartofJOURNAL OF HAZARDOUS MATERIALSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCongo reden_US
dc.subjectsorption : beta-cyclodextrinen_US
dc.subjectstarchen_US
dc.subjectisothermsen_US
dc.titleUse of beta-cyclodextrin and starch based polymers for sorption of Congo red from aqueous solutionsen_US
dc.typeArticleen_US

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