Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 68(5): 331-337 (2019)


ポリ-2-アクリルアミド-2-メチルプロパンスルホン酸(PAMPS)ハイドロゲルによる水溶液中のCs+の吸着・除去技術Adsorption and Removal Technology for Cs+ in Aqueous Solution Using Poly-2-acrylamido-2-methyl-1-propanesolfonic acid (PAMPS) Hydrogel

近畿大学産業理工学部・産業理工学研究科Faculty of Humanity-oriented Science and Engineering, Kindai University ◇ 820–8555 福岡県飯塚市柏の森11–6 ◇ 11–6 Kayanomori, Iizuka, Fukuoka 820–8555, Japan

受付日:2018年12月22日Received: December 22, 2018
受理日:2019年1月17日Accepted: January 17, 2019
発行日:2019年5月15日Published: May 15, 2019


Fukushima Dai-ichi Nuclear Power Plant Accident in Japan caused a severe environmental pollution by the radioactive nuclides such as 137Cs and 90Sr. In this study, adsorption and removal of Cs+ in aqueous solution have been developed by using the hydrogel composed of poly(2-acrylamido-2-methyl-1-propanesulfonic acid), abbreviated as PAMPS. By optimizing the degree of cross-linking of the PAMPS gel, higher adsorption capacity of Cs+ ion and lower water adsorption were achieved. Sulfo groups (−SO3) in the PAMPS hydrogel coordinate to Cs+ ions to remove them from the waste water. It proved that the newly developed PAMPS hydrogel could be a highly potential candidate for the Cs+-removal material.

Key words: Cs+ removal; PAMPS (poly-2-acrylamido-2-methyl-1-propanesulfonic acid) hydrogel; radioactive-water treatment

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