Colorimetric detection and removal of radioactive Co ions using sodium alginate-based composite beads

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• 作者：Daigeun Kim^a ; Ara Jo^a ; Hee-Man Yang^b ; Bum-Kyoung Seo^b ; Kune-Woo Lee^b ; Taek Seung Lee^a ; ^{tslee@cnu.ac.kr} ; ^{leets84@yahoo.co.kr}
• 关键词：Sodium alginate bead ; Azopyridine dye ; Silica linkage ; Radioisotopes ; Detection and removal
• 刊名：Journal of Hazardous Materials
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：326
• 期：Complete
• 页码：69-76
• 全文大小：1531 K
• 卷排序：326

文摘

Organic/inorganic hybridized alginate beads were newly synthesized via sol-gel chemistry. Interaction between the azopyridine and metal ion is the main cause of Co ion detection. The beads showed improved stability and least leakage of azopyridine during use. Removal of Co ion was assessed by the ion-exchange of carboxylate groups in alginate. The beads with dual functions of detection and removal of Co ion were successfully accomplished.