Adsorption and desorption behavior of copper ions on Na-montmorillonite: Effect of rhamnolipids and pH

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dc.contributor.authorOzdemir, Gunseli
dc.contributor.authorYapar, Saadet
dc.date.accessioned2019-10-27T20:47:11Z
dc.date.available2019-10-27T20:47:11Z
dc.date.issued2009
dc.departmentEge Üniversitesien_US
dc.description.abstractIn this work, the effects of an anionic biosurfactant, rhamnolipid (RL), and pH on the adsorption and desorption of Cu(2+) ions on Na-montmorillonite were investigated. Adsorption studies were conducted through the addition of Cu(2+) to the dispersions containing pristine- and/or RL-modified clay. In the case of pristine clay, RL was also added simultaneously with the Cu(2+). The effect of pH was studied in the range between 1.0 and 8.0. The highest adsorption capacity was obtained at the pH of 4.7-4.8. Among the models including the Langmuir, Freundlich and Dubinin-Kaganer-Radushkevich isotherms; Langmuir isotherm gave a better fit to the experimental data. The most suitable fit for the adsorption kinetics of Cu(2+) was obtained with a pseudo-second-order model. It was determined that the adsorption capacity of the pristine clay is comparable with that of the activated carbon and the modification of clay with RL causes an increase in the adsorption rate due to the distribution of clay platelets in the solution. (C) 2009 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jhazmat.2008.12.059en_US
dc.identifier.endpage1313en_US
dc.identifier.issn0304-3894
dc.identifier.issue02.Maren_US
dc.identifier.pmid19178999en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1307en_US
dc.identifier.urihttps://doi.org/10.1016/j.jhazmat.2008.12.059
dc.identifier.urihttps://hdl.handle.net/11454/42506
dc.identifier.volume166en_US
dc.identifier.wosWOS:000266947000104en_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/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectHeavy metal ionsen_US
dc.subjectSodium-montmorilloniteen_US
dc.subjectActivated carbonen_US
dc.subjectRhamnolipidsen_US
dc.titleAdsorption and desorption behavior of copper ions on Na-montmorillonite: Effect of rhamnolipids and pHen_US
dc.typeArticleen_US

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