Equilibrium, kinetic and thermodynamic studies of nickel adsorption onto natural and modified kaolinites

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dc.authorscopusid15048326300
dc.authorscopusid23767083500
dc.authorscopusid39361139400
dc.authorscopusid10143337200
dc.authorscopusid55923677400
dc.contributor.authorKul A.R.
dc.contributor.authorDepci T.
dc.contributor.authorAlacabey I.
dc.contributor.authorAlkan S.
dc.contributor.authorOnal Y.
dc.date.accessioned2024-08-04T20:00:38Z
dc.date.available2024-08-04T20:00:38Z
dc.date.issued2011
dc.departmentİnönü Üniversitesien_US
dc.description.abstractAvailability of clay and its modified forms makes them a viable candidate for an alternative adsorbent.this study, kaolinite and modified kaolinites were tested to determine their suitability for removal of Ni (II) ions from aqueous medium. Parameters, such as kaolinite type, concentration of Ni ions, time and temperature of interaction, were investigated to evaluate the adsorption capacity, kinetics, equilibrium and thermodynamic properties of Ni (II) adsorption. The adsorption isotherms followed Freundlich, Dubinin-Redushkevich (D-R) and Halsey isotherms but DR isotherm was chosen due to its applicability to all adsorption isotherms. The kinetics of adsorption mechanism of Ni (II) was tested using pseudo-first-order, pseudosecond-order and intraparticle diffusion models. The results showed that adsorption mechanism could be perfectly explained with pseudo-second order equation. The intraparticle diffusion of Ni (II) ions within the natural and modified kaolinite was more likely to be governed by the diffusion step. Adsorption mechanism for activated kaolinite was intra-particle diffusion model. Ni (II) adsorptions on activated kaolinites were exothermic and spontaneous in nature. The results of this study indicated that activated kaolinite can be employed for removal of Ni (II) from industrial wastewater. © by PSP.en_US
dc.identifier.endpage1166en_US
dc.identifier.issn1018-4619
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-79958080986en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage1155en_US
dc.identifier.urihttps://hdl.handle.net/11616/90888
dc.identifier.volume20en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofFresenius Environmental Bulletinen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectKaoliniteen_US
dc.subjectModified clayen_US
dc.subjectNickelen_US
dc.titleEquilibrium, kinetic and thermodynamic studies of nickel adsorption onto natural and modified kaolinitesen_US
dc.typeArticleen_US

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