稀土配合物沸石杂化发光材料的研究进展

Recent progress on luminescent lanthanide complex-zeolite hybrid materials

由于具有确定的晶体结构、规则的纳米孔道、易于调控的晶体形貌和颗粒粒径,基于沸石和稀土配合物的新型稀土杂化发光材料越来越引起了人们的关注。稀土配合物组装到沸石微米孔中,不但使配合物的光热稳定性有了明显的提高,而且由此获得的杂化发光材料的形貌、粒径及形式(薄膜或粉末等)可以根据需要进行精细调控。更重要的是,沸石微孔微环境(如酸性、尺寸等)对置于其中的稀土配合物的发光也会产生重要的调控作用。基于对该调控作用的认识,可以设计、制备出发光性能优异、稳定性高的新型稀土杂化发光材料,并将材料应用于有害物质的荧光传感等高新技术领域。本文综述了主要包括作者课题组在内的广大研究工作者在该领域的重要研究成果,并对未来的研究进行了展望。

The past two decades have witnessed the quick development of luminescent hybrid materials based on the en⁃capsulation of lanthanide complexes within the micropores of zeolite crystals owing to the special and interesting features of zeolites such as regular void spaces,the crystalline structure and the tunable structure,morphology and particle size.Their thermal-and photo-stability can be enhanced obviously when being encapsulated within zeolites the morphology,and the particle size and the forms(powder or film etc)of the resulting materials can be also tuned finely.It is worth not⁃ing that the microenvironments of micropores of zeolites exert significant influence on the luminescent behaviors of lan⁃thanide complexes,the understanding of which can facilitate the design and synthesis of highly luminescent materials with ideal stability and the application of the materials to various fields like luminescent detection of harmful chemicals.Herein we summarized the very important works already done by us and the other researchers,and the challenges and outlooks in this type of luminescent materials are highly lighted.