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Radiation Effects on Hydrophobic Ionic Liquid [C(4)mim][NTf2] during Extraction of Strontium Ions
Yuan, Liyong; Peng, Jing; Xu, Ling; Zhai, Maolin; Li, Jiuqiang; Wei, Genshuan
2009-07-02
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume113Issue:26Pages:8948-8952
AbstractThe applications of room-temperature ionic liquids (RTILs) in separation of high level radioactive nuclides demand a comprehensive knowledge of the stability and metal ion extraction of RTILs under radiation. Herein, we assessed the influence of gamma-irradiation on the [C(4)mim][NTf2]-based extraction system, where [C(4)mim](+) is 1-butyl-3-methylimidazolium and [NTf2](-) is bis(trifluoromethylsulfonyl)imide, by solvent extraction of Sr2+ using irradiated [C(4)mim][NTf2] in combination with dicyclohexyl-18-crown-6 (DCH18C6). It was found that the degree of extraction for Sr2+ from water to irradiated [C(4)mim][NTf2] decreased compared with that to unirradiated [C(4)mim][NTf2], and the decrement enhanced obviously with increasing dose. NMR spectroscopic probe analysis revealed the formation of acids during irradiation of [C(4)mim][NTf2]. The decrease of Sr2+ partitioning in irradiated [C(4)mim][NTf2] is attributed to the competition between H+ with Sr2+ to interact with DCH18C6. Accordingly, washing irradiated [C(4)mim][NTf2] with water gives a simple way of ionic liquid recycling. Furthermore, the degree of extraction for Sr2+ from 3 mol.L-1 nitric acid solution to [C(4)mim][NTf2] is independent of the irradiation of [C(4)mim][NTf2] since the amount of the radiation-generated H+ is negligible in such a high acidic solution.
DOI10.1021/jp9016079
Indexed BySCI
Language英语
WOS IDWOS:000267384400019
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:57[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68224
Collection中国科学院化学研究所
Corresponding AuthorZhai, Maolin
AffiliationPeking Univ, Coll Chem & Mol Engn, Dept Appl Chem, BNLMS, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Yuan, Liyong,Peng, Jing,Xu, Ling,et al. Radiation Effects on Hydrophobic Ionic Liquid [C(4)mim][NTf2] during Extraction of Strontium Ions[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2009,113(26):8948-8952.
APA Yuan, Liyong,Peng, Jing,Xu, Ling,Zhai, Maolin,Li, Jiuqiang,&Wei, Genshuan.(2009).Radiation Effects on Hydrophobic Ionic Liquid [C(4)mim][NTf2] during Extraction of Strontium Ions.JOURNAL OF PHYSICAL CHEMISTRY B,113(26),8948-8952.
MLA Yuan, Liyong,et al."Radiation Effects on Hydrophobic Ionic Liquid [C(4)mim][NTf2] during Extraction of Strontium Ions".JOURNAL OF PHYSICAL CHEMISTRY B 113.26(2009):8948-8952.
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