Mechanisms of para-chlorophenol adsorption onto activated carbons having different textural and chemical properties

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dc.contributor.authorDavid, Etelka
dc.contributor.authorSecula, Marius Sebastian
dc.contributor.authorOzdemir, Gunseli
dc.contributor.authorMamaliga, Ioan
dc.date.accessioned2019-10-27T11:21:40Z
dc.date.available2019-10-27T11:21:40Z
dc.date.issued2017
dc.departmentEge Üniversitesien_US
dc.description.abstractThe present study describes the adsorption behavior, mechanisms governing the process and thermodynamics of the separation of p-chlorophenol (4-CP) from aqueous solutions by several granular activated carbons (ACs). The main contribution of this work consists in bringing more insight onto the proper selection of sorbents based on the affinity between them and a specific sorbate with a special regard onto the textural and chemical characteristics of sorbents. Batch tests were conducted in order to evaluate the kinetics, equilibrium and thermodynamics of each considered adsorption system. Equilibrium data were fitted to Langmuir, Freundlich, Sips, Redlich-Peterson and Radke-Prausnitz isotherms in order to elucidate the mechanisms governing the adsorption processes. Also, the kinetics data were analyzed by means of pseudo-first-order, pseudo-second-order, and intraparticle diffusion models The best-fitted adsorption isotherm models were found to be in the order Sips > Redlich-Peterson > Freundlich > Radke-Prausnitz > Langmuir, and the pseudo-second-order model described best the behavior of the adsorption of 4-CP onto each of the five investigated ACs. The adsorption capacity of the AC was found to decrease with temperature. The process of 4-CP adsorption onto AC was spontaneous, and physical in nature and thermodynamically feasible.en_US
dc.description.sponsorshipRomanian National Authority for Scientific Research and Innovation, CNCS - UEFISCDI [PN-II-RU-TE-2014-4-0405]; Laboratories of Ege University, Department of Chemical Engineering, Izmir, Turkeyen_US
dc.description.sponsorshipThis work was supported by a grant of the Romanian National Authority for Scientific Research and Innovation, CNCS - UEFISCDI, project number PN-II-RU-TE-2014-4-0405.; We would like to especially thank CECA, Arkema Group France, for providing us with Aquasorb L27, X17, F22 and S21 granular activated carbon materials and to the Laboratories of Ege University, Department of Chemical Engineering, Izmir, Turkey, for assisting and supporting this work.en_US
dc.identifier.doi10.5004/dwt.2017.0350
dc.identifier.endpage234en_US
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986
dc.identifier.issn1944-3994en_US
dc.identifier.issn1944-3986en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage221en_US
dc.identifier.urihttps://doi.org/10.5004/dwt.2017.0350
dc.identifier.urihttps://hdl.handle.net/11454/32940
dc.identifier.volume62en_US
dc.identifier.wosWOS:000403566800024en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherDesalination Publen_US
dc.relation.ispartofDesalination and Water Treatmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPara-chlorophenolen_US
dc.subjectAdsorptionen_US
dc.subjectSurface propertiesen_US
dc.subjectDiffusionen_US
dc.subjectActivated carbonen_US
dc.titleMechanisms of para-chlorophenol adsorption onto activated carbons having different textural and chemical propertiesen_US
dc.typeArticleen_US

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