Abstract
Silica nanoparticles synthesized by using TEOS/CTABr/NH4OH/H2O were modified with a grafting method using organic amino functional groups. The physical properties of the surface-modified nanoparticles and their sorption behavior with regard to radioactive cobalt and the effect of the surfactant on the sorption were evaluated. The surface-modified nanoparticles had a non-hexagonal structure owing to the partial collapse of the mesopore wall on the surface of the silica nanoparticle. The cobalt sorption capacity increased with the number of amine groups within the organic functional group. An evaluation of the effect of surfactant on cobalt sorption found that the sorption performance was reduced by 0.1 mg/g.
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This work has been carried out under the Nuclear R&D Program (2012M2A8A5025655) funded by Ministry of Science, ICT & Future Planning.
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Chorong Kim and Chong-Hun Jung have contributed equally to this work.
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Kim, C., Yoon, IH., Jung, CH. et al. Sorption of cobalt by amine-functionalized silica nanoparticles for foam decontamination of nuclear facilities. J Radioanal Nucl Chem 310, 841–847 (2016). https://doi.org/10.1007/s10967-016-4886-2
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DOI: https://doi.org/10.1007/s10967-016-4886-2