Statistical analysis of equilibrium and kinetic data for ascorbic acid removal from aqueous solution by activated carbon

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dc.authoridÖZDEMİR, Çiğdem SARICI/0000-0003-2129-3044
dc.authoridÖnal, Yunus/0000-0001-6342-6816
dc.authorwosidÖZDEMİR, Çiğdem SARICI/ABG-7777-2020
dc.authorwosidÖnal, Yunus/E-7170-2018
dc.contributor.authorSarici-Ozdemir, Cigdem
dc.contributor.authorOnal, Yunus
dc.date.accessioned2024-08-04T20:37:42Z
dc.date.available2024-08-04T20:37:42Z
dc.date.issued2013
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe adsorption of ascorbic acid from aqueous solution onto activated carbon was investigated at different concentrations and temperatures. Equilibrium data were analysed using Langmuir, Freundlich, Dubinin-Radushkevich (D-R), Temkin and Frumkin isotherms. All of the isotherm parameters were calculated and showed that they were well explained by the Langmuir, Temkin and Frumkin isotherms models, as compared with the D-R and Freundlich isotherms. Maximum adsorption capacity was determined to be 520.80mgg(-1) according to the Langmuir isotherm. The mean free energy values (E) according to the D-R isotherm were estimated to be 12.50kJmol(-1). In order to clarify the adsorption kinetics, the fits of pseudo-first-order kinetics second-order kinetics, and Elovich models were compared. It was determined that the ascorbic acid adsorption process followed pseudo-second-order rate kinetics. Kinetic and equilibrium data were evaluated according to standard deviation and correlation coefficients. The external mass transfer coefficient, as well as the film and pore diffusion coefficients were also evaluated at various temperatures.en_US
dc.identifier.doi10.1080/19443994.2013.769664
dc.identifier.endpage4665en_US
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986
dc.identifier.issue22-24en_US
dc.identifier.scopus2-s2.0-84879616665en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage4658en_US
dc.identifier.urihttps://doi.org/10.1080/19443994.2013.769664
dc.identifier.urihttps://hdl.handle.net/11616/96120
dc.identifier.volume51en_US
dc.identifier.wosWOS:000320503800043en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherDesalination Publen_US
dc.relation.ispartofDesalination and Water Treatmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAscorbic aciden_US
dc.subjectAdsorptionen_US
dc.subjectActivated carbonen_US
dc.subjectMass transferen_US
dc.titleStatistical analysis of equilibrium and kinetic data for ascorbic acid removal from aqueous solution by activated carbonen_US
dc.typeArticleen_US

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