Статья

Identification of radiolytic products of [C4mim][NTf2] and their effects on the Sr2+ extraction

Yinyong AoBeijing National Laboratory for Molecular Sciences (BNLMS), Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, ChinaJing PengBeijing National Laboratory for Molecular Sciences (BNLMS), Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, ChinaLi‐Yong YuanInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, ChinaZhenpeng CuiBeijing National Laboratory for Molecular Sciences (BNLMS), Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, ChinaRongcheng LiShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaJiuqiang LiBeijing National Laboratory for Molecular Sciences (BNLMS), Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, ChinaMaolin ZhaiBeijing National Laboratory for Molecular Sciences (BNLMS), Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

2012en

ABI

Аннотация

The trace water-soluble radiolytic products of neat 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C(4)mim][NTf(2)]) were identified by analysing water-washed samples of γ-ray irradiated ionic liquids. CF(3)SO(2)OH, CF(3)SOOH, CF(3)SO(2)NH(2), HF and H(2)SO(3) were confirmed as main radiolytic products of [C(4)mim][NTf(2)], and the total radiation chemical yields of the water-soluble radiolytic products (0.35 μmol J(-1)) and that of hydrogen ions (0.46 ± 0.02 μmol J(-1)) were determined by using ion chromatography and neutralization titration, respectively. It was found that the water-soluble radiolytic products of [C(4)mim][NTf(2)] greatly reduced the extraction efficiency of Sr(2+) from water to irradiated [C(4)mim][NTf(2)], while the water-insoluble radiolytic products of [C(4)mim][NTf(2)] had a slight influence on the Sr(2+) extraction.

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Идентификаторы

DOI: 10.1039/c2dt32418k

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