Modeling of thorium (IV) ions adsorption onto a novel adsorbent material silicon dioxide nano-balls using response surface methodology

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dc.contributor.authorKaynar, Umit H.
dc.contributor.authorSabikoglu, Israfil
dc.contributor.authorKaynar, Sermin Cam
dc.contributor.authorEral, Meral
dc.date.accessioned2019-10-27T23:08:55Z
dc.date.available2019-10-27T23:08:55Z
dc.date.issued2016
dc.departmentEge Üniversitesien_US
dc.description.abstractThe silicon dioxide nano-balls (nano-SiO2) were prepared for the adsorption of thorium (IV) ions from aqueous solution. The synthesized silicon dioxide nano-balls were characterized by Scanning Electron Microscopy/Energy Dispersive X-ray, X-ray Diffraction, Fourier Transform Infrared and BET surface area measurement spectroscopy. The effects of pH, concentration, temperature and the solid-liquid ratio on the adsorption of thorium by nano-balls were optimized using central composite design of response surface methodology. The interaction between four variables was studied and modelled. Furthermore, the statistical analysis of the results was done. Analysis of variance revealed that all of the single effects found statistically significant on the sorption of Th(IV). Probability F-values (F=4.64-14) and correlation coefficients (R-2=0.99 for Th(IV)) indicate that model fit the experimental data well. The ability of this material to remove Th(IV) from aqueous solution was characterized by Langmuir, Freunlinch and Temkin adsorption isotherms. The adsorption capacity of thorium (IV) achieved 188.2 mg g(-1). Thermodynamic parameters were determined and discussed. The batch adsorption condition with respect to interfering ions was tested. The results indicated that silicon dioxide nano-balls were suitable as sorbent material for adsorption and recovery of Th(IV) ions from aqueous solutions. (C) 2016 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.apradiso.2016.06.033en_US
dc.identifier.endpage288en_US
dc.identifier.issn0969-8043
dc.identifier.pmid27451112en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage280en_US
dc.identifier.urihttps://doi.org/10.1016/j.apradiso.2016.06.033
dc.identifier.urihttps://hdl.handle.net/11454/52420
dc.identifier.volume115en_US
dc.identifier.wosWOS:000382594900042en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofApplied Radiation and Isotopesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSilicon dioxide nano-ballsen_US
dc.subjectSol-gel processesen_US
dc.subjectAdsorptionen_US
dc.subjectThorium (IV)en_US
dc.subjectResponse Surface Methodology (RSM)en_US
dc.titleModeling of thorium (IV) ions adsorption onto a novel adsorbent material silicon dioxide nano-balls using response surface methodologyen_US
dc.typeArticleen_US

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