Adsorption of neutral red dye from aqueous solutions by natural adsorbent: an equilibrium, kinetic and thermodynamic study

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dc.contributor.authorKul, Ali Rıza
dc.contributor.departmentOthertr_TR
dc.contributor.facultyOthertr_TR
dc.date.accessioned2022-12-29T11:20:19Z
dc.date.available2022-12-29T11:20:19Z
dc.date.issued2021
dc.description.abstractThis study investigates the adsorption of neutral red (NR) on the natural clayey material of Adilcevaz/ Bitlis located the northwest of Van Lake in Eastern Anatolia (Turkey). The adsorbent used was characterized by XRD, XRF, FTIR, SEM and TG-DTA analyzes. The effect of various parameters such as pH, contact time, initial concentration and temperature on NR removal was investigated using a batch process to optimize the maximum adsorption conditions. Equilibrium data for NR adsorption were analyzed using nonlinear two-parameter isotherms such as Langmuir, Freundlich, Dubinin-Radushkevich, and Tempkin, and three-parameter isotherm models, such as nonlinear Redlich-Peterson, Sips, and Koble-Corrigan. The modelling results showed that it was best adapted to the Freundlich isotherm model for the NR dye, with relatively higher R2 values and smaller S.E. The maximum adsorption capacity obtained from the experimental data was determined to be 4.2810 mg g-1. The adsorption process follows pseudo-second-order kinetics with a rate constant of 0.0110 g mg-1 min-1. The thermodynamic parameters indicate that a physical mechanism controls the NR adsorption on the natural clay and spontaneously occurs.tr_TR
dc.description.indexTrdizintr_TR
dc.identifier.urihttp://hdl.handle.net/20.500.12575/86620
dc.language.isoentr_TR
dc.publisherAnkara Üniversitesi Mühendislik Fakültesitr_TR
dc.relation.journalCommunications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineeringtr_TR
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Başka Kurum Yazarıtr_TR
dc.subjectAdsorptiontr_TR
dc.subjectkinetictr_TR
dc.subjectthermodynamictr_TR
dc.titleAdsorption of neutral red dye from aqueous solutions by natural adsorbent: an equilibrium, kinetic and thermodynamic studytr_TR
dc.typeArticletr_TR

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