Equilibrium, thermodynamic, and kinetic modeling studies for the adsorptive removal of oxyanions from water

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dc.authorid0000-0001-8245-4273tr
dc.contributor.authorElik, Mustafa
dc.contributor.authorJunejo, Ranjhan
dc.contributor.authorJalbani, Nida Shams
dc.contributor.authorKaya, Savas
dc.contributor.authorSerdaroglu, Goncagul
dc.contributor.authorMemon, Shahabuddin
dc.date.accessioned2022-05-13T08:06:01Z
dc.date.available2022-05-13T08:06:01Z
dc.date.issuedDEC 2021tr
dc.departmentEğitim Fakültesitr
dc.description.abstractWater is being contaminated by different oxyanions which have many negative effects on the human body. This study deals with the adsorptive removal of Cr2O7-2, AsO4-3, and ClO4-1 oxyanions from water using diethanolaminomethylcalix[4]arene bonded silica (DBS) resin. The capacity of DBS resin for the removal of oxyanions was checked through batch method under the optimized parameters such as pH, adsorbent dosage, concentration of oxyanions, and effect of temperature. The experimental data were analyzed through Langmuir, Freundlich, and Dubinin-Radushkevitch (D-R) adsorption isotherm models and the Langmuir model was the best fit model with a good correlation coefficient (R-2 0.998). The thermodynamic and kinetic studies were performed to check the mechanism and adsorption pathway of oxyanions onto DBS resin. The thermodynamic parameters such as (Delta H degrees, Delta S degrees, and Delta G degrees) describes that the adsorption of oxyanions was spontaneous and endothermic and followed by pseudo second order kinetic models very well. The reusability of resin was also checked and it has been observed that after 27 cycles only 2% loss in adsorption capacity. Moreover, the oxyanions were optimized at the B3LYP/LANL2DZ/6-311++G (d,p) level using G09W software to analyze the oxyanions-DBS interactions phenomenon.tr
dc.description.sponsorshipAuthors are grateful to National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro PAKISTAN.tr
dc.identifier.citationJunejo et al., 2021 Ranjhan Junejo, Nida Shams Jalbani, Savas Kaya, Goncagül Serdaroglu, Mustafa Elik, Shahabuddin Memon 'Equilibrium, thermodynamic, and kinetic modeling studies for the adsorptive removal of oxyanions from water Separ. Sci. Technol. (2021), pp. 1-16tr
dc.identifier.doi10.1080/01496395.2021.2009869en_US
dc.identifier.endpage16tr
dc.identifier.issue1tr
dc.identifier.scopus2-s2.0-85121757586en_US
dc.identifier.scopusqualityN/A
dc.identifier.startpage1tr
dc.identifier.urihttps://hdl.handle.net/20.500.12418/12984
dc.identifier.volume56tr
dc.identifier.wosWOS:000733259100001en_US
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherTAYLOR & FRANCIS INCtr
dc.relation.ispartofSeparation Science and Technologyen_US
dc.relation.publicationcategoryUluslararası Hakemli Dergide Makale - Kurum Öğretim Elemanıtr
dc.rightsinfo:eu-repo/semantics/closedAccesstr
dc.subjectOrbital exponent Atomic density Atomic hardness Effective nuclear chargetr
dc.titleEquilibrium, thermodynamic, and kinetic modeling studies for the adsorptive removal of oxyanions from wateren_US
dc.typeArticleen_US

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