Sorption of cobalt by amine-functionalized silica nanoparticles for foam decontamination of nuclear facilities

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• 作者：Chorong Kim ; In-Ho Yoon ; Chong-Hun Jung…
• 关键词：Sorption ; Cobalt ; Amine ; Nanoparticle ; Foam decontamination ; Silica
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：310
• 期：2
• 页码：841-847
• 全文大小：1,551 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nuclear Chemistry
  Physical Chemistry
  Nuclear Physics, Heavy Ions and Hadrons
  Diagnostic Radiology
  Inorganic Chemistry
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1588-2780
• 卷排序：310

文摘

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.