摘要
离子凝胶是一种将离子液体固定在Si-O基质凝胶材料中的新型离子液体固态材料。首先通过溶胶-凝胶法合成均匀透明的离子凝胶材料,然后利用离子液体这一良好溶剂及其在凝胶材料中的可循环性,通过提取离子液体及再吸附稀土铽配合物与离子液体的溶液,实现铽配合物在离子凝胶材料中均匀稳定的掺杂。合成了两种铽β-二酮配合物复合离子凝胶材料并研究材料光致发光性能,发现复合材料中铽配合物保持了Tb(Ⅲ)的特征发射,其荧光寿命在复合材料中略变短,该复合材料方法简单,合成条件温和且环保,材料的合成为稀土配合物的应用提供了又一类新型复合材料。
Silica-based-ionogels are new class of hybrid materials which confine ILs within porous silica matrix and feature both the mechanic and transparent properties of silica gels,high ionic conductivity and thermal stability of ILs. IL in silica-based ionogel is reproducible. New physical gels could be obtained by extracting IL from the silicabased ionogel,and then exchanging for a new IL phase containing designed functional materials. This method makes it possible to incorporate any ILs soluble materials within the ionogel. Here,the terbium complexes were introduced into silica-based ionogel. The ILs were proved to be restricted in the nanometric level of the interconnected silica porosity of the silica-based ionogel. The luminescent properties of the terbium complex-based ionogels were studied. The terbium complex-based ionogel possesses better photoelectricity and thermal stability which could be designed for biochemical applications,catalysis and electrochemical devices.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2016年第4期396-402,共7页
Journal of the Chinese Society of Rare Earths
基金
浙江省自然科学基金项目(LY14B010004)资助
