Adsorption of acid dyes in aqueous solutions by shells of bittim (Pistacia khinjuk Stocks)

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dc.contributor.authorAydin, Haluk
dc.contributor.authorBaysal, Gulay
dc.date.accessioned2024-04-24T16:11:15Z
dc.date.available2024-04-24T16:11:15Z
dc.date.issued2006
dc.departmentDicle Üniversitesien_US
dc.description.abstractThe effectiveness of adsorption for dye removal from wastewaters has made it an ideal alternative to other expensive treatment options. The removal of acid red 183 (AR) and acid green 25 (AG) onto shells of bittim (Pistacia khinjuk Stocks) (BTS) from aqueous solutions was investigated using parameters such as contact time, pH, temperature, adsorbent doses, and initial dye concentration. Adsorption isotherms of dyes onto BTS were determined and correlated with common isotherm equations such as the Langmuir and Freundlich models. Adsorption equilibrium was reached within 30 min. It was found that the Langmuir isotherm appears to fit the isotherm data better than the Freundlich isotherm. Parameters of the Langmuir and Freundlich isotherms were determined using adsorption data. The maximum adsorption capacities for AR and AG onto BTS at 308, 313, and 318 K were found to be 33, 28, and 20; 16, 18, and 7 mg/g, respectively. The adsorption kinetics of AR and AG could be described by the pseudo-second-order reaction model. The data obtained from adsorption isotherms at different temperatures were used to calculate several thermo-dynamic quantities such as the Gibbs energy (Delta G(0)), enthalpy (Delta H-0), and entropy (Delta S-0) of adsorption. The adsorption process was found to be spontaneous, endothermic and physical in nature. Locally available adsorbent BTS was found to have a low cost and was promising for the removal of AR and AG from aqueous solutions.en_US
dc.identifier.doi10.1016/j.desal.2005.11.025
dc.identifier.endpage259en_US
dc.identifier.issn0011-9164
dc.identifier.issn1873-4464
dc.identifier.issue1-3en_US
dc.identifier.scopus2-s2.0-33747771672
dc.identifier.scopusqualityQ1
dc.identifier.startpage248en_US
dc.identifier.urihttps://doi.org/10.1016/j.desal.2005.11.025
dc.identifier.urihttps://hdl.handle.net/11468/15329
dc.identifier.volume196en_US
dc.identifier.wosWOS:000240664900022
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofDesalination
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectLangmuir Isothermen_US
dc.subjectFreundlich Isothermen_US
dc.subjectAcid Dyesen_US
dc.subjectLow-Cost Materialsen_US
dc.subjectAdsorption Modelingen_US
dc.titleAdsorption of acid dyes in aqueous solutions by shells of bittim (Pistacia khinjuk Stocks)en_US
dc.titleAdsorption of acid dyes in aqueous solutions by shells of bittim (Pistacia khinjuk Stocks)
dc.typeArticleen_US

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