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dc.creatorNikolić, Vesna
dc.creatorTomić, Nataša
dc.creatorBugarcic, Mladen
dc.creatorSokić, Miroslav
dc.creatorMarinković, Aleksandar
dc.creatorVeličković, Zlate
dc.creatorKamberović, Željko
dc.date.accessioned2022-03-04T11:26:50Z
dc.date.available2022-03-04T11:26:50Z
dc.date.issued2021
dc.identifier.issn0944-1344
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/4966
dc.description.abstractA simple sol-gel method and external gelatinization method of hollow alumina spheres synthesis were developed in this study. The spheres were modified with polyethyleneimine (PEI) producing PEI-Al2O3 via (3-glycidyloxypropyl)trimethoxy-silane, GLYMO, linker. Characterization results, obtained using XRD and SEM microscopy revealed spherical geometry with a hollow core of PEI-Al2O3 adsorbent. Introduction of a large number of the amino group, 6.9 mmol g(-1), contributes to achieving high adsorption capacities, q(m), of 95.6, 124.9, 61.3, and 125.9 mg g(-1) for Cd2+, Pb2+, As(V), and DCF, respectively, which is obtained by using the Langmuir model. Thermodynamic studies indicated feasible adsorption and higher spontaneity with temperature increase. The kinetic study conveniently modeled using pseudo-second-order (PSO) and Weber-Morris kinetic model, as well as single resistance mass transfer model, indicated a change of the contribution of diffusional processes during adsorption with a dominance of intra-particle diffusion. The fixed-bed column adsorption data, fitted using Bohart-Adams, Clark, Yoon-Nelson, and Thomas models, showed lower capacity in comparison to batch study, and thus clear potential applicability of PEI-Al2O3 was deduced even at a high loading of feed water.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS//
dc.rightsrestrictedAccess
dc.sourceEnvironmental Science and Pollution Research
dc.subjectAlumina spheresen
dc.subjectExternal gelatinizationen
dc.subjectAdsorbenten
dc.subjectCadmiumen
dc.subjectArsenicen
dc.subjectLeaden
dc.subjectDiclofenacen
dc.subjectKinetic studyen
dc.titleAmino-modified hollow alumina spheres: effective adsorbent for Cd2+, Pb2+, As(V), and diclofenac removalen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage27192
dc.citation.issue21
dc.citation.other28(21): 27174-27192
dc.citation.rankM22
dc.citation.spage27174
dc.citation.volume28
dc.identifier.doi10.1007/s11356-020-12157-1
dc.identifier.pmid33507501
dc.identifier.scopus2-s2.0-85099916787
dc.identifier.wos000612599600022
dc.type.versionpublishedVersion


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Приказ основних података о документу