摘要
The water-soluble radiolytic products of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ionic liquid([C2mim][NTf2]) under γ-radiation, such as CF3 SOOH, CF3SO2NH2, HF, and H2SO3, were identified by using1 H NMR,19 F NMR, and ion chromatography. The extraction behavior of Dy3+using irradiated [C2mim][NTf2] in combination with 2,6-di(5,6-diisobutyl-1,2,4-triazin-3-yl)pyridine(isobutyl-BTP)was studied and the abnormal increase of Dy3+partitioning after irradiation is mainly attributed to the precipitation formed between Dy3+and radiolytic products of [C2mim][NTf2](F–and SO2–3). Washing irradiated[C2mim][NTf2] with water provides a simple method for ionic liquid recycling.
The water-soluble radiolytic products of 1-ethyl-3-methylimidazolium bis（trifluoromethylsulfonyl） imide ionic liquid （[C2mim][NTf2]） under γ-radiation, such as CF3SOOH, CF3SO2NH2, HF, and H2SO3, were identified by using 1H NMR, 19F NMR, and ion chromatography. The extraction behavior of Dy3＋ using irradiated [Czmim][NTf2] in combination with 2,6-di（5,6-diisobutyl-1,2,4-triazin-3-yl）pyridine （isobutyl-BTP） was studied and the abnormal increase of Dy3＋ partitioning after irradiation is mainly attributed to the precipitation formed between Dy3＋ and radiolytic products of [C2mim][NTf2] （F and SO2 ）. Washing irradiated [C2mim][NTf2] with water provides a simple method for ionic liquid recycling.
基金
Supported by the Ph.D.Programs Foundation of Ministry of Education of China(No.20130073120051)
the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning
the National Natural Science Foundation of China(No.11475112)
