Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 68(7): 443-449 (2019)


パラジウム担持グラフト繊維の作製と2-クロロフェノールの脱塩素化特性Preparation of Palladium-impregnated Fiber and Its Characteristics of Dechlorination of 2-chlorophenol

1千葉大学大学院工学研究院Department of Applied Chemistry and Biotechnology, Chiba University ◇ 263–8522 千葉市稲毛区弥生町1–33 ◇ 1–33 Yayoi-cho, Inage-ku, Chiba 263–8522, Japan

2株式会社環境浄化研究所KJK Co., Ltd. ◇ 370–0849 群馬県高崎市八島町58–1 ◇ 58–1Yashima-cho, Takasaki, Gunma 370–0849, Japan

受付日:2018年6月12日Received: June 12, 2018
受理日:2019年3月6日Accepted: March 6, 2019
発行日:2019年7月15日Published: July 15, 2019


To catalytically dechlorinate PCB-related substances, palladium (Pd) was impregnated onto a nylon6 fiber by radiation-induced graft polymerization and subsequent chemical modifications. Palladium anionic species (PdCl42−) were immobilized to dimethylaminoethyl methacrylategrafted fiber, followed by the reduction of palladium anionic species to palladium with hydrazine at temperatures ranging from −3 to 25°C. 2-Chlorophenol was dechlorinated quantitatively to phenol at a reaction time of 2 h with hydrazine as a hydrogen source using Pd-impregnated fiber prepared at a reduction temperature of −3°C.

Key words: radiation-induced graft polymerization; palladium-impregnated fiber; hydrazine; 2-chlorophenol; decholorination

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