Rate studies on the adsorption of some dyestuffs and p-nitrophenol by chitosan and monocarboxymethylated(mcm)-chitosan from aqueous solution

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dc.contributor.authorUzun, I
dc.contributor.authorGüzel, F
dc.date.accessioned2024-04-24T16:15:06Z
dc.date.available2024-04-24T16:15:06Z
dc.date.issued2005
dc.departmentDicle Üniversitesien_US
dc.description.abstractIn this study, the effect of temperature on the adsorption of some dyestuffs [orange II (O-II), crystal violet (CV) and reactive blue 5 (RB5)] and p-nitrophenol (PNP) by chitosan and of O-II and CV by modified chitosan [monocarboxymethylated(mcm)-chitosan] from aqueous solution was investigated. Kinetical data related to the adsorptions of each dyestuff and PNP by chitosan and of O-II and CV by mcm-chitosan were applied to Lagergren and Weber-Morris equations, and adsorption rate constants (k(ads)) and pore diffusion rate constants (k(p)) were determined, respectively. In addition, Langmuir isotherm constants with experimental data related to the adsorptions of O-II and CV by chitosan and of CV by mcm-chitosan were applied to McKay et al. equation, and external mass transfer coefficients (k(f)) were also determined. Lastly, chitosan and mcm-chitosan were compared according to their dyestuffs and PNP uptake capabilities. It was seen that mcm-chitosan removed more O-II (99.2%) and RB5 (34.9%) but less CV (3.1%) and PNP (0.9%). (C) 2004 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jhazmat.2004.10.006
dc.identifier.endpage154en_US
dc.identifier.issn0304-3894
dc.identifier.issue1-3en_US
dc.identifier.pmid15721538
dc.identifier.scopus2-s2.0-13844313400
dc.identifier.scopusqualityQ1
dc.identifier.startpage141en_US
dc.identifier.urihttps://doi.org/10.1016/j.jhazmat.2004.10.006
dc.identifier.urihttps://hdl.handle.net/11468/15647
dc.identifier.volume118en_US
dc.identifier.wosWOS:000227510300016
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofJournal of Hazardous Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChitosanen_US
dc.subjectDyestuff Adsorptionen_US
dc.subjectDiffusionen_US
dc.subjectMass Transferen_US
dc.titleRate studies on the adsorption of some dyestuffs and p-nitrophenol by chitosan and monocarboxymethylated(mcm)-chitosan from aqueous solutionen_US
dc.titleRate studies on the adsorption of some dyestuffs and p-nitrophenol by chitosan and monocarboxymethylated(mcm)-chitosan from aqueous solution
dc.typeArticleen_US

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