Insights into cationic methyl violet 6B dye-kaolinite interactions: kinetic, equilibrium and thermodynamic studies

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dc.authoridSargin, Idris -- 0000-0003-3785-9575
dc.contributor.authorSargin, I.
dc.contributor.authorÜnlü, Nuri
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-16T09:15:52Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-16T09:15:52Z
dc.date.issued2013
dc.departmentSabire Yazıcı Fen Edebiyat Fakültesi
dc.description.abstractIn this study, adsorption and adsorption kinetics of methyl violet dye from aqueous solutions onto kaolinite were investigated. The effects of adsorbent dosage, pH, ionic strength, contact time, temperature and initial dye concentration were studied. Kinetic and thermodynamic parameters were determined using experimental data. Adsorption capacity decreased with increasing ionic strength. Changes in the initial pH of the dye solution in a range close to the dye's natural pH (i.e. similar to pH 5.0) values affected adsorption capacity slightly, indicating that adsorption studies could be carried out at the dye's natural pH. The adsorption process followed the Freundlich-type adsorption isotherms and pseudo-second order type adsorption kinetics. However, an intraparticle diffusion process was found to have effects in adsorption processes. Thermodynamic parameters were calculated from the experimental data and enthalpy of the adsorption, Delta H-0, was found to be -6.82 kJ mol(-1), indicating physisorption nature of the adsorption. Other thermodynamic parameters, Delta S-0 and DG(0), were also calculated. Negative values of Delta G(0) indicated that the adsorption process for methyl violet on kaolinite is spontaneous.
dc.identifier.doi10.1180/claymin.2013.048.4.05
dc.identifier.endpage95en_US
dc.identifier.issn0009-8558
dc.identifier.issn1471-8030
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage85en_US
dc.identifier.urihttps://doi.org/10.1180/claymin.2013.048.4.05
dc.identifier.urihttps://hdl.handle.net/20.500.12451/4485
dc.identifier.volume48en_US
dc.identifier.wosWOS:000316713900005
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherMineralogical SOC
dc.relation.ispartofClay Minerals
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectKaolinite
dc.subjectDye Removal
dc.subjectMethyl Violet 6B
dc.subjectIsotherms
dc.subjectThe Elovich Equation
dc.titleInsights into cationic methyl violet 6B dye-kaolinite interactions: kinetic, equilibrium and thermodynamic studies
dc.typeArticle

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