Adsorption of thorium (IV) ions by metal ion doped ZnO nanomaterial prepared with combustion synthesis: Empirical modelling and process optimization by response surface methodology (RSM)

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dc.authorscopusid56004006600
dc.authorscopusid56520348300
dc.authorscopusid15727891200
dc.authorscopusid14035203700
dc.authorscopusid7003768052
dc.contributor.authorKaynar, Ümit H.
dc.contributor.authorKaynar, S. Cam
dc.contributor.authorKaralı, E. Ekdal
dc.contributor.authorAyvacıklı, M.
dc.contributor.authorCan, N.
dc.date.accessioned2022-02-15T16:57:57Z
dc.date.available2022-02-15T16:57:57Z
dc.date.issued2021
dc.departmentBakırçay Üniversitesien_US
dc.description.abstractEnvironmental problems have reached enormous dimensions, driving efforts to remove and recycle waste from energy and industrial production. In particular, removing the radionuclide contamination that occurs as the nuclear industry grows is difficult and costly, but it is vital. Technologic and economical methods and advanced facilities are needed for the separation and purification of radioactive elements arising from the nuclear industry and uranium and thorium mining. With the adsorption method, which is the most basic separation and recovery method, the use of high-capacity nanomaterials has recently gained great importance in reducing the activity of the waste, reducing its volume by transforming it into solid form, and recovering and removing liquid radioactive wastes that might harm the ecological environment. This study aimed to determine the adsorption properties of metal ion-doped nano ZnO (nano-ZnO:Al) material synthesized by the microwave-assisted gel combustion method for the adsorption of thorium (IV) from aqueous media. First, characterization processes such as XRD, SEM, BET and zeta potential were performed to observe changes in the host ZnO adsorbent structure caused by the doping process. Later, this was optimized via the response surface method (RSM), which is widely used in the characterization of the adsorption properties of thorium (IV) from aqueous solutions. Such characterization is commonly used in industrial research. We tested how pH (3-8), temperature (20-60 degrees C), Th (IV) concentration (25-125 mg/L) and adsorbent amount (0.01-0.1 g) affect adsorption efficiency. The best possible combinations of these parameters were determined by RSM. It was calculated by RSM that the design fits the second order (quadratic) model using the central composite design (CCD) for the design of experimental conditions. R-2 and R-2 adjusted values from the parameters showing the model fit were 0.9923 and 0.9856, respectively. According to the model, the experimental adsorption capacity was 192.3 mg/g for the doped-ZnO nanomaterial under the theoretically specified optimum conditions. Also, the suitability of Th (IV) adsorption to isotherms was examined and thermodynamic parameters were calculated.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [1001-120M235]; Turkish Atomic Energy Authority (TAEK)Ministry of Energy & Natural Resources - Turkeyen_US
dc.description.sponsorshipThe authors acknowledge grants from the Scientific and Technological Research Council of Turkey (TUBITAK, project number: 1001-120M235). All radionuclide adsorption experiments performed in the study were carried out in Ege University Institute of Nuclear Sciences, which is also a partner in the project, accredited by the Turkish Atomic Energy Authority (TAEK).en_US
dc.identifier.doi10.1016/j.apradiso.2021.109955
dc.identifier.issn0969-8043
dc.identifier.issn1872-9800
dc.identifier.pmid34547650en_US
dc.identifier.scopus2-s2.0-85115117216en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1016/j.apradiso.2021.109955
dc.identifier.urihttps://hdl.handle.net/20.500.14034/315
dc.identifier.volume178en_US
dc.identifier.wosWOS:000701739500008en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.journalApplied Radiation And Isotopesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectThorium (IV)en_US
dc.subjectGel-combustion methoden_US
dc.subjectNano ZnO:Alen_US
dc.subjectOptimizationen_US
dc.subjectResponse surface methodology (RSM)en_US
dc.subjectAqueous-Solutionsen_US
dc.subjectUranium Vien_US
dc.subjectRemovalen_US
dc.subjectCarbonen_US
dc.subjectTh(Iv)en_US
dc.subjectNanotubesen_US
dc.subjectSorptionen_US
dc.subjectAciden_US
dc.titleAdsorption of thorium (IV) ions by metal ion doped ZnO nanomaterial prepared with combustion synthesis: Empirical modelling and process optimization by response surface methodology (RSM)en_US
dc.typeArticleen_US

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