Organo-functional modified pyrophyllite: preparation, characterisation and Pb(II) ion adsorption property

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dc.authoridAkarsu, Murat/0000-0003-2053-2197
dc.authoridErdemoğlu, Murat/0000-0003-2922-7965
dc.authoridOKUSLUK, Funda/0000-0002-1334-4043;
dc.authorwosidAkarsu, Murat/IQS-7415-2023
dc.authorwosidErdemoğlu, Murat/AAA-9964-2020
dc.authorwosidOKUSLUK, Funda/ABG-8842-2020
dc.authorwosidErdemoğlu, Sema/AAA-3930-2021
dc.contributor.authorErdemoglu, M
dc.contributor.authorErdemoglu, S
dc.contributor.authorSayilkan, F
dc.contributor.authorAkarsu, M
dc.contributor.authorSener, S
dc.contributor.authorSayilkan, H
dc.date.accessioned2024-08-04T20:13:45Z
dc.date.available2024-08-04T20:13:45Z
dc.date.issued2004
dc.departmentİnönü Üniversitesien_US
dc.description.abstractSurface modification of clay minerals has become increasingly important for improving the practical applications of clays such as fillers and adsorbents. In this study, the surface of pyrophyllite mineral was modified by coating with 3-(2-aminoethylamino) propyl-methyidimethoxysilane (APMDS) coupling agent and utility of the APMDS-modified pyrophyllite was investigated as an adsorbent for removal of Pb(II) ions from aqueous solutions. XRD, FT-IR and SEM analysis were used to characterise the surface modification and it was suggested that hydrogen bonding takes place between the hydroxyl groups and/or oxygen atoms within the structure of pyrophyllite and hydroxyl groups of APMDS. The APMDS-modified pyrophyllite adsorbed approximately 93% of Pb(II) ions at an initial concentration of 20 mg/l, while natural pyrophyllite did only 35% under the same conditions. The adsorption of Pb(II) increased with increasing pH and reached a maximum value in the pH range 6.5-7. The effects of various factors on the adsorption, such as pH of the solution, contact time, amount of adsorbent and initial Pb(II) concentration, were studied. The adsorption isotherm has been determined and data have been analysed according to the Langmuir model and found to be favourable, i.e., the separation parameter is less than unity (R-L < 1). (C) 2003 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.clay.2003.12.005
dc.identifier.endpage52en_US
dc.identifier.issn0169-1317
dc.identifier.issn1872-9053
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-13944273068en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage41en_US
dc.identifier.urihttps://doi.org/10.1016/j.clay.2003.12.005
dc.identifier.urihttps://hdl.handle.net/11616/93814
dc.identifier.volume27en_US
dc.identifier.wosWOS:000224656000005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofApplied Clay Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectpyrophylliteen_US
dc.subjectorgano-functionalisationen_US
dc.subjectsilaneen_US
dc.subjectadsorbenten_US
dc.subjectlead(II) removalen_US
dc.titleOrgano-functional modified pyrophyllite: preparation, characterisation and Pb(II) ion adsorption propertyen_US
dc.typeArticleen_US

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