Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 66(11): 543-547 (2017)

特集Special Issues

19 放射線グラフト重合法による高度分離材料の開発19 Development of High-Performance Polymeric Adsorbents by Radiation-Induced Graft Polymerization

千葉大学大学院工学研究科Chiba University ◇ 263–8522 千葉市稲毛区弥生町1–33 ◇ 1–33 Yayoi-machi, Inage-ku, Chiba Pref. 263–8522, Japan

発行日:2017年11月15日Published: November 15, 2017


Insoluble inorganic compound, extractant, and enzyme were immobilized into the graft-chain phase formed onto a commercially available 6-nylon fiber by radiation-induced graft polymerization and subsequent chemical modifications. Insoluble cobalt ferrocyanide-impregnated fiber has removed radioactive caesium ions from water contaminated with radionuclides at TEPCO Fukushima Dai-ichi Nuclear Power Plant. Additionally, HDEHP-impregnated and urease-immobilized fibers were applicable to the recovery of rare-earth ions such as Nd and Dy in an acidic medium and the hydrolysis of urea in water, respectively.

Key words: polymeric adsorbent; radiation-induced graft polymerization; caesium-ion removal; rare-earth metal ion recovery; urea hydrolysis

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