Identification of the radiolytic product of hydrophobic ionic liquid [C4mim][NTf2] during removal of Sr2+ from aqueous solution

Liyong Yuan; Chao Xu; Jing Peng; Ling Xu; Maolin Zhai; Jiuqiang Li; Genshuan Wei; Xinghai Shen

doi:10.1039/B911026G

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Identification of the radiolytic product of hydrophobic ionic liquid [C₄mim][NTf₂] during removal of Sr²⁺ from aqueous solution†

Liyong Yuan,^a Chao Xu,^a Jing Peng,^a Ling Xu,^ab Maolin Zhai,*^a Jiuqiang Li,^a Genshuan Wei^a and Xinghai Shen*^a

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* Corresponding authors

^a Beijing National Laboratory for Molecular Sciences (BNLMS), Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, P. R. China
E-mail: mlzhai@pku.edu.cn, xshen@pku.edu.cn
Fax: +86-10-62765915
Tel: +86-10-62753794

^b Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, P. R. China

Abstract

SO₃²⁻ is identified as one of the radiolytic products of the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C₄mim][NTf₂]) during the removal of strontium ions (Sr²⁺) from aqueous solution.

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Supplementary files

Fig. S1 SEM and energy dispersive X-ray spectroscopy (EDS)spectra of the precipitate separated from the interface of irradiated [C₄mim][NTf₂] and aqueous solution of Sr²⁺. The contact time of the two phases is less than 2 weeks (left) and more than 2 months (right), respectively. Fig. S2 ¹H NMR spectra of unirradiated [C₄mim][NTf₂] and irradiated [C₄mim][NTf₂] at 400 kGy after contacting with aqueous solution of Sr²⁺ for 1 month. Fig. S3 FTIR spectra of unirradiated [C₄mim][NTf₂] and irradiated [C₄mim][NTf₂] at 400 kGy after contacting with aqueous solution of Sr²⁺ for 1 month PDF (403K)

Article information

DOI: https://doi.org/10.1039/B911026G
Article type: Communication
Submitted: 05 Jun 2009
Accepted: 24 Jul 2009
First published: 04 Aug 2009

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Dalton Trans., 2009, 7873-7875

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Identification of the radiolytic product of hydrophobic ionic liquid [C₄mim][NTf₂] during removal of Sr²⁺ from aqueous solution

L. Yuan, C. Xu, J. Peng, L. Xu, M. Zhai, J. Li, G. Wei and X. Shen, Dalton Trans., 2009, 7873 DOI: 10.1039/B911026G

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Dalton Transactions