摘要
稀土层状氢氧化物(LRHs)结合了层状化合物的结构特性和稀土离子的功能特性,代表了一类新的功能材料,在光电、催化以及生物医学等领域具有巨大的应用潜力。本文主要综述了LRHs的研究进展,包括Ln_(2)(OH)_(5)(A^(x-))_(1/x)·nH_(2)O(251-LRHs)和Ln_(2)(OH)_(4)SO_(4)·nH_(2)O(241-LRHs)的可控合成、结构特征、阴离子交换、纳米片剥离,以及在发光领域的应用,重点关注251-LRHs晶体的尺寸和形貌调控及纳米片剥离,总结了LRHs及其煅烧衍生物(氧化物、含氧硫酸盐和硫氧化物)荧光粉、高取向透明薄膜、光学温度传感器的发光特性,展望了LRHs功能化设计的研究方向,以期为今后进一步开发LRHs新型功能材料提供参考。
Layered rare-earth hydroxides(LRHs),having a unique combination of a layered structure and the functional properties of rare-earth elements,are a new family of functional materials.The compounds have potential applications in electro-optic,catalytic,biomedical fields and so forth.This review summarizes the recent research on LRHs,including controlled synthesis,structural features,anion exchange,nanosheet exfoliation,and application in the field of luminescence for both the Ln_(2)(OH)_(5)(A^(x-))_(1/x)·nH_(2)O(251-LRHs)and Ln_(2)(OH)_(4)SO_(4)·nH_(2)O(241-LRHs).Particular attention is paid to the size and morphology control and nano sheets exfoliation in 251-LRHs.The luminescent behaviors of LRHs themselves and calcined derivatives of the oxide,oxysulfate,and oxysulfide for phosphors,highly oriented transparent films,and optical temperature sensors are the main content.Finally,the prospects of LRHs on novel functional materials are proposed,which provides a new way for future functional design.
作者
陈露
朱琦
孙旭东
CHEN Lu;ZHU Qi;SUN Xudong(Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education),School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2023年第3期14-23,共10页
Materials Reports
基金
国家自然科学基金(51302032)
辽宁省自然科学基金(2020-MS-081)。
