Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Kim, Minsun | - |
dc.contributor.author | Park, Jeong-Hyun | - |
dc.contributor.author | Lim, Jong-Myoung | - |
dc.contributor.author | Kim, Hyuncheol | - |
dc.contributor.author | Kim, Soonhyun | - |
dc.date.accessioned | 2021-01-22T07:23:53Z | - |
dc.date.available | 2021-01-22T07:23:53Z | - |
dc.date.created | 2020-09-02 | - |
dc.date.issued | 2021-02 | - |
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.scopusid | 2-s2.0-85089531806 | - |
dc.identifier.bibliographicCitation | Chemical Engineering Journal, v.405, pp.126568 | - |
dc.description.isOpenAccess | FALSE | - |
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 | - |
dc.subject.keywordPlus | HYDROGEN STORAGE | - |
dc.subject.keywordPlus | CHARGE-TRANSFER | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | CESIUM REMOVAL | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | IONS | - |
dc.subject.keywordPlus | ABSORPTION | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | COORDINATION | - |
dc.subject.keywordPlus | ELIMINATION | - |
dc.citation.startPage | 126568 | - |
dc.citation.title | Chemical Engineering Journal | - |
dc.citation.volume | 405 | - |
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