Adsorption kinetics of malachite green onto activated carbon prepared from Tuncbilek lignite

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dc.authoridÖZDEMİR, Çiğdem SARICI/0000-0003-2129-3044
dc.authoridÖnal, Yunus/0000-0001-6342-6816
dc.authoridBaşar, Canan Akmil/0000-0003-3574-0773
dc.authoridEren Sarıcı, Didem/0000-0003-2639-5226
dc.authoridDepci, Tolga/0000-0001-9562-8068
dc.authorwosidÖZDEMİR, Çiğdem SARICI/ABG-7777-2020
dc.authorwosidÖnal, Yunus/E-7170-2018
dc.authorwosidBaşar, Canan Akmil/ABG-9941-2020
dc.authorwosidEren Sarıcı, Didem/ABG-8471-2020
dc.authorwosidDepci, Tolga/A-2867-2016
dc.contributor.authorÖnal, Y
dc.contributor.authorAkmil-Basar, C
dc.contributor.authorEren, D
dc.contributor.authorSarici-Özdemir, Ç
dc.contributor.authorDepci, T
dc.date.accessioned2024-08-04T20:15:15Z
dc.date.available2024-08-04T20:15:15Z
dc.date.issued2006
dc.departmentİnönü Üniversitesien_US
dc.description.abstractAdsorbent (T(3)K618) has been prepared from Tuncbilek lignite by chemical activation with KOH. Pore properties of the activated carbon such as BET surface area, pore volume, pore size distribution, and pore diameter were characterized by t-plot based on N-2 adsorption isotherm. The N-2 adsorption isotherm of malachite green on T(3)K618 is type I. The BET surface area of the adsorbent which was primarily contributed by micropores was determined 1000 m(2)/g. T(3)K618 was used to adsorb malachite green (MG) from an aqueous solution in a batch reactor. The effects of initial dye concentration, agitation time, initial pH and adsorption temperature have been studied. It was also found that the adsorption isotherm followed both Freundlich and Dubinin-Radushkevich models. However, the Freundlich gave a better fit to all adsorption isotherms than the Dubinin-Radushkevich. The kinetics of adsorption of MG has been tested using pseudo-first-order, pseudo-second-order and intraparticle diffusion models. Results show that the adsorption of MG from aqueous solution onto micropores T(3)K618 proceeds according to the pseudo-second-order model. The intraparticle diffusion of MG molecules within the carbon particles was identified to be the rate-limiting step. The adsorption of the MG was endothermic (Delta H degrees = 6.55-62.37 kJ/mol) and was accompanied by an increase in entropy (Delta S degrees = 74-223 J/mol K) and a decrease in mean value of Gibbs energy (Delta G degrees = -6.48 to -10.32 kJ/mol) in the temperature range of 20-50 degrees C. (c) 2005 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jhazmat.2005.07.055
dc.identifier.endpage157en_US
dc.identifier.issn0304-3894
dc.identifier.issn1873-3336
dc.identifier.issue2-3en_US
dc.identifier.pmid16154262en_US
dc.identifier.scopus2-s2.0-32644440880en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage150en_US
dc.identifier.urihttps://doi.org/10.1016/j.jhazmat.2005.07.055
dc.identifier.urihttps://hdl.handle.net/11616/94271
dc.identifier.volume128en_US
dc.identifier.wosWOS:000235849100008en_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.subjectactivated carbonen_US
dc.subjectadsorptionen_US
dc.subjectreaction kineticsen_US
dc.subjectligniteen_US
dc.subjectmalachite greenen_US
dc.titleAdsorption kinetics of malachite green onto activated carbon prepared from Tuncbilek ligniteen_US
dc.typeArticleen_US

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