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dc.creatorMilenkovic, A.
dc.creatorSmičiklas, Ivana D.
dc.creatorBundaleski, Nenad
dc.creatorTeodoro, Orlando M. N. D.
dc.creatorVeljović, Đorđe N.
dc.creatorVukelic, N.
dc.date.accessioned2018-03-01T17:10:33Z
dc.date.available2018-03-01T17:10:33Z
dc.date.issued2016
dc.identifier.issn0927-7757 (print)
dc.identifier.issn1873-4359 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1266
dc.description.abstractA range of industrial by-products are currently under the consideration as cost-effective alternatives to conventional sorbent materials for environmental clean-up and remediation applications. Bauxite residue (red mud) has demonstrated exceptionally high potential for the immobilization of cationic pollutants. Due to heterogeneity of such material, determination of the role of individual mineral phases in the overall sorption mechanism is a challenging task. To enlighten the mechanism of Co(II) sorption by mineral assemblage of the red mud, sequential extraction analysis of Co-loaded sample was combined with the microscopic and spectroscopic studies performed by Scanning Field Emission Electron Microscope (FE-SEM), Energy Dispersive Spectroscopy (EDS) and X-ray Photoelectron Spectroscopy (XPS). Sorbed Co(II) ions were found associated with operationally defined Fe,Mn-oxide and carbonate/acid soluble fractions. Binding of Co(II) by the red mud was achieved primarily by means of chemisorption/surface precipitation on Fe- and Ti-oxides. In coexistence with these highly selective surfaces, gibbsite and silica appeared to be low affinity sites for Co(II). Incongruent dissolution of sodalite phase was detected, indicating that its function was not to ensure sorption centers, but to increase the solution pH creating favorable environment for Co(II) binding by Fe- and Ti-oxides. The results demonstrate high stability of sorbed Co(II) and synergistic action of mineral constituents as essentially important property for red mud implementation as a purifying and remediation agent. (C) 2016 Elsevier B.V. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/43009/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45005/RS//
dc.relationFundacao para a Ciencia e Tecnologia do Ministerio da Ciencia, Tecnologia e Ensino Superior (FCT/MCTES) [UID/FIS/00068/2013]
dc.rightsrestrictedAccessen
dc.sourceColloids and Surfaces. A: Physicochemical and Engineering Aspectsen
dc.subjectRed muden
dc.subjectCo(II)en
dc.subjectSorption mechanismen
dc.subjectSequential extractionen
dc.subjectSEM/EDSen
dc.subjectXPSen
dc.titleThe role of different minerals from red mud assemblage in Co(II) sorption mechanismen
dc.typearticleen
dcterms.abstractВукелиц, Н.; Смициклас Ивана; Теодоро, О. М. Н. Д.; Бундалески Ненад; Миленковиц, A.; Вељовиц, Д.;
dc.citation.volume508
dc.citation.spage8
dc.citation.epage20
dc.identifier.wos000384958000002
dc.identifier.doi10.1016/j.colsurfa.2016.08.011
dc.citation.rankM22
dc.identifier.scopus2-s2.0-84982181916


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