期刊
ANALYTICA CHIMICA ACTA
卷 604, 期 2, 页码 107-113出版社
ELSEVIER
DOI: 10.1016/j.aca.2007.10.005
关键词
sol-gel; Cyanex 923; ionic liquid; Yttrium(III)
A new material (IL923SGs) composed of ionic liquids and trialkyl phosphine oxides (Cyanex 923) for Y(III) uptake was prepared via a sol-gel method. The hydrophobic ionic liquid 1-octyl-3-methylimidazolium hexafluorophosphate (C(8)mim(+)PF(6)-) was used as solvent medium and pore templating material. The extraction of Y(III) by IL923SGs was mainly due to the complexation of metal ions with Cyanex 923 doped in the solid silica. Ionic liquid was stably doped into the silica gel matrix providing a diffusion medium for Cyanex 923, and this will result in higher removal efficiencies and excellent stability for metal ions separation. IL923SGs were also easily regenerated and reused in the subsequent removal of Y(III) in four cycles. (c) 2007 Elsevier B.V. All rights reserved.
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