Adsorption of hexavalent chromium from aqueous solutions by bio-chars obtained during biomass pyrolysis

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dc.contributor.authorDeveci, Huseyin
dc.contributor.authorKar, Yakup
dc.date.accessioned2024-09-18T20:04:26Z
dc.date.available2024-09-18T20:04:26Z
dc.date.issued2013
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractIn this study, bio-chars were evaluated as a potential adsorbent for the removal of Cr (VI) ions from aqueous solutions. The effects of some important parameters including initial pH (1.5-7), adsorbent dose (0.2-5 g/L), contact time (5-900 min) and initial Cr (VI) ion concentration (5-75 mg/L) were tested on the removal of Cr (VI) ions from aqueous solution in batch experiments. Maximum adsorption capacities of the tested bio-chars under the certain experimental conditions determined as optimal were 3.53 mg/g for NCBC, 3.97 mg/g for NZCBC and 6.08 mg/g for ACBC, respectively. Results of the kinetic and isotherm modeling studies revealed that the adsorption data fitted well with a pseudo-second order and Langmuir model. In among the tested bio-chars, the bio-char (ACBC) was largely equivalent to activated carbon: AC (9.97 mg/g) in terms of adsorption capacity. All results indicated that the bio-chars had higher adsorption capacity than some chars and activated carbons reported previously, and also that these bio-chars could be used successfully as low-cost adsorbents for the removal of chromium ions from aqueous solutions under the tested experimental conditions. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jiec.2012.08.001
dc.identifier.endpage196en_US
dc.identifier.issn1226-086X
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-84870447599en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage190en_US
dc.identifier.urihttps://doi.org/10.1016/j.jiec.2012.08.001
dc.identifier.urihttps://hdl.handle.net/20.500.12483/8168
dc.identifier.volume19en_US
dc.identifier.wosWOS:000312764700027en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Incen_US
dc.relation.ispartofJournal of Industrial and Engineering Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBio-charen_US
dc.subjectAdsorptionen_US
dc.subjectHexavalent chromiumen_US
dc.subjectPyrolysisen_US
dc.titleAdsorption of hexavalent chromium from aqueous solutions by bio-chars obtained during biomass pyrolysisen_US
dc.typeArticleen_US

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