Extraction mechanism and gamma-radiation effect on the removal of Eu3+   by a novel BTPhen/[C(n)mim][NTf2] system in the presence of nitric acid

doi:10.1039/c4ra07662a

CORC > 北京大学 > 化学与分子工程学院

	Extraction mechanism and gamma-radiation effect on the removal of Eu3+ by a novel BTPhen/[C(n)mim][NTf2] system in the presence of nitric acid
	Zhou, Hanyang ; Ao, Yinyong ; Yuan, Jie ; Peng, Jing ; Li, Jiuqiang ; Zhai, Maolin
刊名	rsc advances
	2014
关键词	TEMPERATURE IONIC LIQUIDS SOLVENT-EXTRACTION SEPARATION AMERICIUM(III) EUROPIUM(III) WATER LANTHANIDES STABILITY CHEMISTRY ACTINIDES
DOI	10.1039/c4ra07662a
英文摘要	The extraction mechanism of 2,9-bis(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-benzo[1,2,4]triazin-3-yl)-1,10-phenanthroline (BTPhen) in combination with 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imides ionic liquids ([C(n)mim][NTf2], n = 2, 4, 8) in the presence of nitric acid is studied by using Eu3+, which has similar properties to trivalent actinides. The dominant complex compound forming between BTPhen and Eu changes from [Eu(BTPhen)(2)(NO3)](2+) to [Eu(BTPhen)(NO3)(3)] gradually with the increase of [HNO3] or the length of the alkyl chain in the [C(n)mim](+), indicating that the main extraction mechanism of BTPhen/[C(n)mim][NTf2] varies from a cation exchange mechanism to a neutral species mechanism. The irradiation of BTPhen in solid state has no effect on the extraction of Eu3+. The abnormally enhanced removal of Eu3+ was observed in irradiated BTPhen/[C(2)mim][NTf2] system with 0.1 M nitric acid, and it was attributed to the formation of precipitates between Eu3+ and trace radiolytic products of [C(2)mim][NTf2], which could be recovered by water washing before extraction. The extraction of Eu3+ was slightly changed for the irradiated BTPhen/[C(2)mim][NTf2] system with 1 M nitric acid, demonstrating good radiation stability of this novel extraction system.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000342993500097&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Multidisciplinary; SCI(E); EI; 5; ARTICLE; jpeng@pku.edu.cn; mlzhai@pku.edu.cn; 85; 45612-45618; 4
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150627]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhou, Hanyang,Ao, Yinyong,Yuan, Jie,et al. Extraction mechanism and gamma-radiation effect on the removal of Eu3+ by a novel BTPhen/[C(n)mim][NTf2] system in the presence of nitric acid[J]. rsc advances,2014.
APA	Zhou, Hanyang,Ao, Yinyong,Yuan, Jie,Peng, Jing,Li, Jiuqiang,&Zhai, Maolin.(2014).Extraction mechanism and gamma-radiation effect on the removal of Eu3+ by a novel BTPhen/[C(n)mim][NTf2] system in the presence of nitric acid.rsc advances.
MLA	Zhou, Hanyang,et al."Extraction mechanism and gamma-radiation effect on the removal of Eu3+ by a novel BTPhen/[C(n)mim][NTf2] system in the presence of nitric acid".rsc advances (2014).