采用疏水性聚丙烯中空纤维作膜器、冠醚DB18C6作萃取剂、离子液体[Bmim][PF6]作稀释剂,构建了新型的离子液体-中空纤维封闭液膜体系,通过正交试验并以直接萃取方法为参照探索其用于回收Cs+性能.实验结果显示,该液膜体系可以实现从料液回收Cs+,且其中"经管程"操作模式的Cs回收效率优于"经壳程"模式.初步的条件实验显示该膜体系具有可调性,且适用于痕量Cs的分离回收.本实验成果为进一步加密实验条件、优化液膜体系性能奠定了基础,也为发展高效的cs(Ⅰ)分离回收方法提供一定参考.
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