Removal of 2,4-dichlorophenoxy acetic acid from aqueous solutions by partially characterized organophilic sepiolite

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dc.contributor.authorAkçay, G
dc.contributor.authorAkçay, M
dc.contributor.authorYurdakoç, K
dc.date.accessioned2024-04-24T16:15:01Z
dc.date.available2024-04-24T16:15:01Z
dc.date.issued2005
dc.departmentDicle Üniversitesien_US
dc.description.abstractThe adsorption of 2,4-dichlorophenoxyacetic acid (2,4-D) on organophilic sepiolite (dodecylammonium sepiolite, DAS) was Studied as a function of solution concentration and temperature. The observed adsorption rates were found to be equal to the first-order kinetics. The rate constants were calculated for temperatures ranging between 25 and 40 degreesC at constant concentration. The adsorption energies, E. and adsorption capacity, q(m), for 2,4-D adsorption on organophilic sepiolite was estimated using the Dubinin-Radushkevic equation. Thermodynamic parameters (Deltag(a), Deltah(a), Deltas(a)) were determined by a new approximation from the isotherm of 2,4-D adsorption on DAS. Also, DeltaS(0) and DeltaH(0) values were calculated from the van't Hoff equation. These isotherms were modeled according to the Freundlich and Dubinin-Radushkevic adsorption equations. The amount of adsorption of this herbicide on organophilic sepiolite was found to be dependent on the relative energies of adsorbent-adsorbate, ad sorbate-sol vent, and adsorbate-adsorbate interaction. (C) 2004 Elsevier Inc. All rights reserved.en_US
dc.identifier.doi10.1016/j.jcis.2004.08.080
dc.identifier.endpage32en_US
dc.identifier.issn0021-9797
dc.identifier.issn1095-7103
dc.identifier.issue1en_US
dc.identifier.pmid15567376
dc.identifier.scopus2-s2.0-9644281618
dc.identifier.scopusqualityQ1
dc.identifier.startpage27en_US
dc.identifier.urihttps://doi.org/10.1016/j.jcis.2004.08.080
dc.identifier.urihttps://hdl.handle.net/11468/15591
dc.identifier.volume281en_US
dc.identifier.wosWOS:000225659600004
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoenen_US
dc.publisherAcademic Press Inc Elsevier Scienceen_US
dc.relation.ispartofJournal of Colloid and Interface Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHerbicidesen_US
dc.subjectRemovalen_US
dc.subjectAdsorptionen_US
dc.subjectThermodynamicsen_US
dc.subjectKineticsen_US
dc.subjectOrganophilic Sepioliteen_US
dc.titleRemoval of 2,4-dichlorophenoxy acetic acid from aqueous solutions by partially characterized organophilic sepioliteen_US
dc.titleRemoval of 2,4-dichlorophenoxy acetic acid from aqueous solutions by partially characterized organophilic sepiolite
dc.typeArticleen_US

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