Adsorption of levulinic acid from aqueous solution by Amberlite XAD-4

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dc.authoridDatta, Dipaloy/0000-0002-2048-9064
dc.contributor.authorDatta, Dipaloy
dc.contributor.authorUslu, Hasan
dc.date.accessioned2025-03-26T17:35:09Z
dc.date.available2025-03-26T17:35:09Z
dc.date.issued2017
dc.departmentİstanbul Esenyurt Üniversitesi
dc.description.abstractLevulinic acid (LA) from aqueous solutions was removed by using commercial adsorbent Amberlite XAD-4 (XAD-4). The equilibrium and kinetic studies were performed to investigate the effect of adsorbent amount (1 g to 3.5 g at 298 K, 308 K and 318 K), initial acid concentration (2 g.L-1 to 4 g.L-1 at 298 K, 308 K and 318 K), and contact time (t, 10 min to 90 min at 298 K) on the capability of XAD-4. The uptake capability and removal efficiency of XAD-4 for the adsorption of LA was observed to increase by increasing amount of adsorbent. In the equilibrium experiments of LA adsorption, adsorption capacity value was increased to 26.85 mg.g(-1) from 10 mg.g(-1) at 298 K with an increase in the amount of XAD-4. In the kinetic studies, the equilibrium time of 70 min was obtained. Also equilibrium study was performed at three different temperatures, 298, 308 and 318 K. The maximum removal was obtained at 298 K. Thermodynamic model parameters such as Delta G degrees, Delta H degrees and Delta S degrees are estimated at three different LA concentration (2 g.L-1, 3 g.L-1 and 4 g.L-1). Different isotherm and kinetic models were applied to estimate the equilibrium and kinetic parameters. (C) 2017 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.molliq.2017.03.084
dc.identifier.endpage334
dc.identifier.issn0167-7322
dc.identifier.issn1873-3166
dc.identifier.scopus2-s2.0-85016734280
dc.identifier.scopusqualityQ1
dc.identifier.startpage330
dc.identifier.urihttps://doi.org/10.1016/j.molliq.2017.03.084
dc.identifier.urihttps://hdl.handle.net/20.500.14704/1067
dc.identifier.volume234
dc.identifier.wosWOS:000402342900042
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofJournal of Molecular Liquids
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250326
dc.subjectAdsorption; Levulinic acid; Equilibrium; Kinetics; Amberlite XAD-4
dc.titleAdsorption of levulinic acid from aqueous solution by Amberlite XAD-4
dc.typeArticle

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