Surface modification of pyrophyllite with amino silane coupling agent for the removal of 4-nitrophenol from aqueous solutions

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dc.authoridErdemoğlu, Murat/0000-0003-2922-7965
dc.authoridAkarsu, Murat/0000-0003-2053-2197
dc.authoridOKUSLUK, Funda/0000-0002-1334-4043;
dc.authorwosidErdemoğlu, Murat/AAA-9964-2020
dc.authorwosidAkarsu, Murat/IQS-7415-2023
dc.authorwosidOKUSLUK, Funda/ABG-8842-2020
dc.authorwosidErdemoğlu, Sema/AAA-3930-2021
dc.contributor.authorSayilkan, H
dc.contributor.authorErdemoglu, S
dc.contributor.authorSener, S
dc.contributor.authorSayilkan, F
dc.contributor.authorAkarsu, M
dc.contributor.authorErdemoglu, M
dc.date.accessioned2024-08-04T20:15:11Z
dc.date.available2024-08-04T20:15:11Z
dc.date.issued2004
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe surface of naturally hydrophobic mineral pyrophyllite was modified to hydrophilic by treatment with prehydrolyzed N-(2-aminoethyl)3-ammopropyltrimethoxysilane (APEO) coupling agent to prepare a novel and effective adsorbent for the removal of 4-nitrophenol (4-NP) from aqueous solutions. XRD, FTIR, and SEM analyses were used to characterize the surface modification. It was found that after the grafting procedure, heat treatment at 110 degreesC results in condensation reaction between the OH groups of the APEO molecule and the hydroxyl groups and/or oxygen atoms on the pyrophyllite surface and the adsorption of 4-NP by APEO-modified pyrophyllite involves interactions between dissociated 4-NP molecules and protonated amine groups of APEO molecules attached to the mineral surface. Adsorption equilibrium data for 4-NP adsorption on APEO-treated and untreated pyrophyllite were most satisfactorily fitted using the Freundlich adsorption isotherm and adsorption capacity was found to be 0.268 mg/g for modified pyrophyllite whereas it was only 0.105 mg/g for untreated pyrophyllite. (C) 2004 Elsevier Inc. All rights reserved.en_US
dc.identifier.doi10.1016/j.jcis.2004.02.009
dc.identifier.endpage538en_US
dc.identifier.issn0021-9797
dc.identifier.issn1095-7103
dc.identifier.issue2en_US
dc.identifier.pmid15178283en_US
dc.identifier.scopus2-s2.0-2942568169en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage530en_US
dc.identifier.urihttps://doi.org/10.1016/j.jcis.2004.02.009
dc.identifier.urihttps://hdl.handle.net/11616/94197
dc.identifier.volume275en_US
dc.identifier.wosWOS:000222064800025en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAcademic Press Inc Elsevier Scienceen_US
dc.relation.ispartofJournal of Colloid and Interface Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectpyrophylliteen_US
dc.subjectsurface modificationen_US
dc.subjectamino silaneen_US
dc.subjectadsorptionen_US
dc.subject4-nitrophenolen_US
dc.titleSurface modification of pyrophyllite with amino silane coupling agent for the removal of 4-nitrophenol from aqueous solutionsen_US
dc.typeArticleen_US

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