Novel soft materials, Eu（Ⅲ）-containing complex dissolved in [C8mim][X] （X=Cl-, PF-6 and Tf2N） ionic liquids, were synthesized. FT-IR and elementary analysis of complex proved that the molecular formula is [Csmim] [Eu（TTA）4]. The complex and ionic liquids had high thermal stability according to TGA. The photoluminescence spectra showed that the [Csmim][Eu（TTA）4] exhibited typical red emission de- riving from 5Do-7F2 transition. After dissolving the complex in [Csmim][X] （X=C1, PF6- and Tf2N-） ionic liquids, the luminescence intensity decreased in the following order： [Csmim][Tf2N]=[Csmim][PF6 ]〉[Csmim][C1]. This was because Tf2N- and PF6 anions had larger molecular volume and weaker coordination ability than Cl.
A novel bifunctional task-specific ionic liquid(TSIL),i.e.[trialkylmethylammonium][sec-nonylphenoxy acetate]([A336] [CA-100]) was impregnated on intermediate polarized XAD-7 resin,and the prepared solvent impreganated resin(SIR) was studied for rare earth(RE) separation.Adsorption ability of the SIR was indicated to be obviously higher than that prepared by [A336][NO3] because of the functional anion of [A336][CA-100].Adsorption kinetics,adsorption isotherm,separation and desorption of the SIR were also stu...
