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Rapid removal of radioactive cesium by polyacrylonitrile nanofibers containing Prussian blue

Title
Rapid removal of radioactive cesium by polyacrylonitrile nanofibers containing Prussian blue
Authors
Kim, Hyun CheolKim, Min SunLee, Wan NoKim, Soon Hyun
DGIST Authors
Kim, Soon Hyun
Issue Date
2018-04
Citation
Journal of Hazardous Materials, 347, 106-113
Type
Article
Article Type
Article
Keywords
CesiumEfficiencyElectrospinningNanofibersNanoparticlesNuclear fuelsNuclear power plantsRadioactivitySynthesis (chemical)Cesium 137Efficient technologyFukushima dai-ichi nuclear power plantsMesoporous structuresPolyacrylonitrile nanofibersPrussian blueRadioactive wastewaterRemoval efficienciesPolyacrylonitrilescesiumcesium ionferric ferrocyanidenanofiberpolyacrylonitrileadsorptionanalytical methodcesiumcesium isotopechemical compounddyeenvironmental technologynanoparticlenanotechnologynuclear accidentnuclear power plantpollutant removalpolymerradioactive pollutionradioactivityradionuclidewastewater treatmentArticlecrystal structureelectrospinningFukushima nuclear accidentheavy metal removalphysical chemistryradioactivityscintillation countingstatic electricitysurface areasurface propertysynthesiswettabilityFukushima [Tohoku]HonshuJapanTohoku
ISSN
0304-3894
Abstract
After the Fukushima Daiichi Nuclear Power Plant disaster in Japan in 2011, the demand drastically increased for efficient technology for the removal of radioactive cesium. Prussian blue (PB) nanoparticles have shown excellent adsorption ability toward Cs. In this study, we synthesized PB nanoparticles incorporated polyacrylonitrile nanofiber (PB/PAN). PB/PAN has the porous structure of nanofibers, with diameters of several hundred nanometers. PB nanoparticles can be incorporated successfully into the PAN matrix without any change to their intrinsic crystallinity and structure. The mesoporous structure of PB/PAN and the incorporation of PB nanoparticles led to an increase in the Brunauer–Emmett–Teller surface area and pore volume. In addition, PB/PAN exhibited excellent wettability with water. With simple filtering for the removal of radioactive cesium, PB/PAN showed high removal efficiency (87 ± 3%) within 10 s for 10 mL of 137Cs solution (1000 Bq L−1). In addition, the 137Cs removal by PB/PAN showed high removal efficiency (70 ± 2%, after 1 h), even in the actual seawater medium (1000 Bq L−1 of 137Cs). Therefore, PB-incorporated PAN nanofibers can be considered useful in the practical application of Cs removal from radioactive wastewater. © 2017 Elsevier B.V.
URI
http://hdl.handle.net/20.500.11750/5590
DOI
10.1016/j.jhazmat.2017.12.050
Publisher
Elsevier B.V.
Related Researcher
Files:
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Collection:
Smart Textile Convergence Research Group1. Journal Articles


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