提供了一种固定Cyanex 923的新方法-溶胶-凝胶法.在溶胶-凝胶过程中离子液体的加入增加了复合材料的比表面积和孔容,并在硅胶网络中为Cyanex 923提供了一个可以扩散的介质.包埋离子液体和Cyanex 923的有机-无机复合材料的制备过程不需要其他有机溶剂,绿色、环保.结果表明,该复合材料对Y(Ⅲ)和重稀土元素有较好的分离效果.经过4次萃取/反萃过程,该复合材料对Y(Ⅲ)去除率仍高于78%.表明材料性能稳定,可多次重复使用.
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