Issue 12, 2013
From the journal:

Dalton Transactions

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

Yinyong Ao,a   Jing Peng,a   Liyong Yuan,b   Zhenpeng Cui,a   Cheng Li,c   Jiuqiang Lia  and  Maolin Zhai*a  

* Corresponding authors

a Beijing National Laboratory for Molecular Sciences (BNLMS), Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
E-mail: mlzhai@pku.edu.cn
Tel: +86-10-62753794

b Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

c Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

Abstract

The trace water-soluble radiolytic products of neat 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C4mim][NTf2]) were identified by analysing water-washed samples of γ-ray irradiated ionic liquids. CF3SO2OH, CF3SOOH, CF3SO2NH2, HF and H2SO3 were confirmed as main radiolytic products of [C4mim][NTf2], 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 [C4mim][NTf2] greatly reduced the extraction efficiency of Sr2+ from water to irradiated [C4mim][NTf2], while the water-insoluble radiolytic products of [C4mim][NTf2] had a slight influence on the Sr2+ extraction.

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

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Article information

DOI
https://doi.org/10.1039/C2DT32418K
Article type
Paper
Submitted
11 Oct 2012
Accepted
20 Dec 2012
First published
20 Dec 2012

Dalton Trans., 2013,42, 4299-4305

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

Y. Ao, J. Peng, L. Yuan, Z. Cui, C. Li, J. Li and M. Zhai, Dalton Trans., 2013, 42, 4299 DOI: 10.1039/C2DT32418K

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