Show simple item record

dc.creatorAhribesh, Aysha Ali
dc.creatorLazarevic, Slavica
dc.creatorJankovic-Castvan, Ivona
dc.creatorJokić, Bojan M.
dc.creatorSpasojević, Vojislav
dc.creatorRadetic, Tamara
dc.creatorJanaćković, Đorđe T.
dc.creatorPetrovic, Rada
dc.date.accessioned2018-03-01T17:17:51Z
dc.date.available2018-03-01T17:17:51Z
dc.date.issued2017
dc.identifier.issn0032-5910 (print)
dc.identifier.issn1873-328X (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1349
dc.description.abstractThe magnetic nanocomposites (MNCs), used as adsorbents for Cd2+ ions, were prepared by a co-precipitation method using both the untreated natural (SEP) and the partially acid-activated (ASEP) sepiolites as supports for magnetite. The synthesis conditions differed as follows: NaOH or NH3 was added in the SEP or the ASEP suspension before or after the addition of Fe3 and Fe2+. The SEP-based MNCs prepared using NaOH had a lower magnetization, but higher adsorption capacities than the MNCs synthesized using NH3. The order of the mixing of the reagents had a small influence on the properties of SEP-based MNCs, especially when NaOH was used for the synthesis. Due to acidity of the surface functional groups of the ASEP, the magnetic composite could be synthesized only when NH3 was added in the suspension of ASEP having Fe3+ and Fe2+ ions. Despite of the worse dispersibility of the magnetic particles, the adsorption capacityof the ASEP-based composite was higher than of the MNC with SEP prepared by the same procedure. All the MNCs showed a superparamagnetic behavior at room temperature and the adsorption capacities were higher than of pure compounds. The adsorption of Cd2+ on the composites was best fitted with the Sips model, which suggested the chemisorption on the heterogeneous surface at energetically non-uniform sites until a monolayer was formed. (C) 2016 Elsevier B.V. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45019/RS//
dc.rightsclosedAccessen
dc.sourcePowder Technologyen
dc.subjectMagnetic nanocompositesen
dc.subjectSepiolite/acid-activated sepioliteen
dc.subjectCo-precipitation, synthesis parametersen
dc.subjectCd2+ adsorptionen
dc.titleInfluence of the synthesis parameters on the properties of the sepiolite-based magnetic adsorbentsen
dc.typearticleen
dcterms.abstractПетровиц, Рада; Лазаревиц, Славица; Јанацковиц, Дорде; Спасојевић Војислав; Радетиц, Тамара; Aхрибесх, Ayсха Aли; Јокиц, Бојан; Јанковиц-Цастван, Ивона;
dc.citation.volume305
dc.citation.spage260
dc.citation.epage269
dc.identifier.wos000390732000030
dc.identifier.doi10.1016/j.powtec.2016.09.086
dc.identifier.scopus2-s2.0-84991087342


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record