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dc.contributor.author Kim, Minsun ko
dc.contributor.author Park, Jeong-Hyun ko
dc.contributor.author Lim, Jong-Myoung ko
dc.contributor.author Kim, Hyuncheol ko
dc.contributor.author Kim, Soonhyun ko
dc.date.accessioned 2021-01-22T07:23:53Z -
dc.date.available 2021-01-22T07:23:53Z -
dc.date.created 2020-09-02 -
dc.date.created 2020-09-02 -
dc.date.created 2020-09-02 -
dc.date.created 2020-09-02 -
dc.date.issued 2021-02 -
dc.identifier.citation Chemical Engineering Journal, v.405, pp.126568 -
dc.identifier.issn 1385-8947 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/12746 -
dc.description.abstract Prussian blue analogues (PBAs) have received much attention as materials for radioactive Cs removal due to their affinity for adsorbing Cs+. In this study, we have synthesized PBAs using Ni(II), Co(II), and Fe(II) to prepare NiFe-PBA, CoFe-PBA, and FeFe-PBA and have added different quantities of sodium citrate as a stabilizing agent to adjust particle size and surface area. The PBAs also were composited with TiO2, and the efficiency of Cs+ adsorption was compared in the dark and under UV-light irradiation. Larger surface areas and smaller particle sizes yield better Cs+ adsorption with NiFe-PBA, NiFe-TiO2. FeFe-TiO2 exhibits enhanced Cs+ adsorption under UV irradiation. The adsorption capacity of NiFe-PBA more than doubles from ~0.8 mmol·g−1 in the dark to 1.7 mmol·g−1 under UV light. The adsorption capacity of the NiFe-TiO2 composite approximately triples from 0.45 mmol·g−1 in the dark to 1.5 mmol·g−1 under UV irradiation. Enhanced photoinduced adsorption on NiFe PBAs also is observed with radioactive 137Cs+. The enhancement of Cs+ adsorption by NiFe PBAs is the result of a photoinduced charge transfer reaction within the NiFe PBA structure. This study is the first report of enhanced photoinduced removal of Cs+ using PBAs, which is an attractive strategy for the removal of the radioactive Cs+ from contaminated water. © 2020 Elsevier B.V. -
dc.language English -
dc.publisher Elsevier BV -
dc.title Conventional and photoinduced radioactive 137Cs removal by adsorption on FeFe, CoFe, and NiFe Prussian blue analogues -
dc.type Article -
dc.identifier.doi 10.1016/j.cej.2020.126568 -
dc.identifier.wosid 000621207000003 -
dc.identifier.scopusid 2-s2.0-85089531806 -
dc.type.local Article(Overseas) -
dc.type.rims ART -
dc.description.journalClass 1 -
dc.contributor.localauthor Kim, Minsun -
dc.contributor.localauthor Kim, Soonhyun -
dc.contributor.nonIdAuthor Lim, Jong-Myoung -
dc.contributor.nonIdAuthor Kim, Hyuncheol -
dc.identifier.citationVolume 405 -
dc.identifier.citationStartPage 126568 -
dc.identifier.citationTitle Chemical Engineering Journal -
dc.type.journalArticle Article -
dc.description.isOpenAccess N -
dc.subject.keywordAuthor Cesium removal -
dc.subject.keywordAuthor Prussian blue analogues -
dc.subject.keywordAuthor Photoinduced adsorption -
dc.subject.keywordAuthor Radioactive cesium -
dc.subject.keywordAuthor UV light irradiation -

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