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Identification of F- and SO42- as the radiolytic products of the ionic liquid C(4)mimNTf(2) and their effect on the extraction of UO22+
Sun, Taoxiang; Shen, Xinghai; Chen, Qingde; Ma, Jingyuan(马靖远); Zhang, Shuo; Huang, Yuying
2013
Source PublicationRADIATION PHYSICS AND CHEMISTRY
ISSN0969-806X
Volume83Pages:CONCATENATE(Sheet1!I157,-Sheet1!J157)
AbstractA precipitate was found at the interface between the aqueous phase and the ionic liquid (IL) phase during the separation of UO22+/Eu3+ using irradiated IL 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imides (C(4)mimNTf(2)), and was analyzed by SEM, EDS, XPS and PXRD. The anions F- and SO42- were identified as the radiolytic products of C(4)mimNTf(2). The radiation effect on the extraction of UO22+ from aqueous solution by tri-n-butyl phosphate (TBP) in C(4)mimNTf(2) was studied. For the presence of F- and SO42-, the utilization of irradiated C(4)mimNTf(2) as diluent reduced the extraction efficiency of UO22+. The EXAFS measurement showed that the degradation of C(4)mimNTf(2) insignificantly influenced the coordination environment of UO22+ in the IL phase. Furthermore, it was suggested that the complex of uranyl ion with four TBP molecules is predominant during the extraction of UO22+ by TBP in C(4)mimNTf(2) from aqueous solution in the absence of nitric acid. This work gives a further assessment for the application of ILs in the processing of spent nuclear fuel. (C) 2012 Elsevier Ltd. All rights reserved.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000312926500012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13774
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
GB/T 7714
Sun, Taoxiang,Shen, Xinghai,Chen, Qingde,et al. Identification of F- and SO42- as the radiolytic products of the ionic liquid C(4)mimNTf(2) and their effect on the extraction of UO22+[J]. RADIATION PHYSICS AND CHEMISTRY,2013,83:CONCATENATE(Sheet1!I157,-Sheet1!J157).
APA Sun, Taoxiang,Shen, Xinghai,Chen, Qingde,Ma, Jingyuan,Zhang, Shuo,&Huang, Yuying.(2013).Identification of F- and SO42- as the radiolytic products of the ionic liquid C(4)mimNTf(2) and their effect on the extraction of UO22+.RADIATION PHYSICS AND CHEMISTRY,83,CONCATENATE(Sheet1!I157,-Sheet1!J157).
MLA Sun, Taoxiang,et al."Identification of F- and SO42- as the radiolytic products of the ionic liquid C(4)mimNTf(2) and their effect on the extraction of UO22+".RADIATION PHYSICS AND CHEMISTRY 83(2013):CONCATENATE(Sheet1!I157,-Sheet1!J157).
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