离子液体键合固载硅基材料的辐射制备及其在锝/铼吸附分离中的应用

Radiation synthesis of ionic liquids bonded silica-based materials and their application in adsorption and separation of technetium/rhenium

介绍了利用电离辐射技术将不同结构的离子液体接枝固载到硅烷化二氧化硅上,成功制备出一系列吸附性能优异且耐辐照性能好的新型吸附材料;系统研究了其吸附TcO_(4)^(-)/ReO_(4)^(-)的性能与结构之间关系,分析了吸附机理并评估了其应用前景.离子液体键合固载硅基材料对TcO_(4)^(-)/ReO_(4)^(-)的吸附性能受合成方法、离子液体阴阳离子种类和硅基材料结构的影响.离子液体键合固载硅基材料后续可以从增强选择性、拓展离子液体种类、探究实际应用效果等方面进行研究.

A series of novel adsorbents with excellent adsorption performance and good radiation resistance were successfully prepared via grafting of ionic liquids with different structures onto silanized silica by ionizing radiation technology.The structureperformance relationship towards TcO_(4)^(-)/ReO_(4)^(-)was systematically studied,adsorption mechanism was analyzed and application prospect of prepared adsorbents was evaluated.The adsorption performance of ionic liquids bonded silica-based materials for TcO_(4)^(-)/ReO_(4)^(-)were affected by synthesis method,cations and anions types of ionic liquid,as well as silica structures.Further studies on ionic liquids bonded silica-based materials can be carried out from the aspects of enhancing selectivity,expanding types of ionic liquids and exploring practical application effects,etc.