Adsorption of indole and 2-methylindole on ligand-exchange matrix

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dc.contributor.authorErciyes, N
dc.contributor.authorGurten, AA
dc.contributor.authorAbdullah, MI
dc.contributor.authorAyar, A
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2004
dc.departmentNiğde ÖHÜ
dc.description.abstractThe adsorption of indole and its 2-methyl derivative from aqueous solutions onto cobalt(II)-carboxylated diaminoethane sporopollenin (CDAE-sporopollenin) was studied using a fixed-bed column at 25 +/- 0.1 degreesC. Minicolumn adsorption studies showed that the breakthrough and the total adsorption capacities of CDAE-sporopollenin in the concentration range we have studied increased with increasing external ligand concentration. The characteristics of the adsorption process were investigated using Scatchard plot analysis, where the equilibrium binding data for indole on ligand exchanger gave rise to a linear plot. However, for 2-methylindole, divergence from the Scatchard plot was evident, consistent with the participation of secondary equilibrium effects in the adsorption process. The adsorption behaviors of ligands on CDAE-sporopollenin were expressed by both the Langmuir and Freundlich isotherms. The adsorption isotherm data for these ligands on the resin can be satisfactorily fitted to the Freundlich isotherm within the concentration range studied. However, in the case of 2-methylindole, the experimental data did not fit the Langmuir model, especially when a high ligand concentration range is used; this is probably due to the nonspecific interactions between the ligand exchange matrix and the methyl group present. Ligand adsorption constants and correlation coefficients for the ligands were calculated from the Langmuir and Freundlich isotherms. (C) 2004 Elsevier Inc. All rights reserved.
dc.identifier.doi10.1016/j.jcis.2004.05.041
dc.identifier.endpage95
dc.identifier.issn0021-9797
dc.identifier.issn1095-7103
dc.identifier.issue1
dc.identifier.pmid15313641
dc.identifier.scopus2-s2.0-4143093796
dc.identifier.scopusqualityQ1
dc.identifier.startpage91
dc.identifier.urihttps://dx.doi.org/10.1016/j.jcis.2004.05.041
dc.identifier.urihttps://hdl.handle.net/11480/5641
dc.identifier.volume278
dc.identifier.wosWOS:000223630800011
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherACADEMIC PRESS INC ELSEVIER SCIENCE
dc.relation.ispartofJOURNAL OF COLLOID AND INTERFACE SCIENCE
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectindole
dc.subject2-methylindole
dc.subjectsporopollenin
dc.subjectadsorption isotherm
dc.subjectbreakthrough curve
dc.subjectscatchard analysis
dc.titleAdsorption of indole and 2-methylindole on ligand-exchange matrix
dc.typeArticle

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