MOFs基光电化学传感界面及其应用
MOFs-Based Photoelectrochemical Sensing Interface and Its Applications
周存银 1黄娟 1王琼 2唐浩 3胡云楚 1王文磊1
作者信息
- 1. 中南林业科技大学理学院 长沙 410004
- 2. 中南林业科技大学理学院 长沙 410004;湖南师范大学化学化工学院化学生物学及中药分析教育部重点实验室 长沙 410081
- 3. 湖南师范大学化学化工学院化学生物学及中药分析教育部重点实验室 长沙 410081
- 折叠
摘要
光电化学传感分析是近年来迅速发展的一种新型分析技术,光电化学传感界面中的光电活性材料是光电化学传感检测的关键.金属有机框架(MOFs)及其衍生物可能是分散光电活性物质构建光电化学传感界面的理想载体.因MOFs材料中有机配体的"天线效应",金属簇可看作被活化的分立的半导体量子点,使其具有与半导体类似的光电特性.对MOFs材料进行碳基化合物、有机聚合物、贵金属纳米粒子、无机氧化物、量子点修饰,构建MOFs基光电化学传感界面,可以提高MOFs的导电性,促进光生电子-空穴的分离,从而提高光电转换效率.利用MOFs基光电化学传感界面对光电化学传感产生信号放大的作用,可实现对目标物的超灵敏检测.基于此,本文对MOFs基材料光电活性机理、合成方法及光电活性界面构建策略进行了介绍,综述了近年来MOFs基材料在小分子化合物、免疫分析、酶活性及环境分析等光电化学传感检测中的应用,并对其发展前景进行了展望.
Abstract
Photoelectrochemical sensing analysis is a rapidly developing new analytical technology in recent years,and photoelectric active materials are the key to photoelectrochemical sensing detection.Metal-organic frameworks(MOFs)and their derivatives may be ideal carriers for the construction of photoelectrochemical sensing interfaces by dispersing photoelectrically active substances.Due to the"antenna effect"of organic ligands in MOFs,the metal clusters can be regarded as activated discrete semiconductor quantum dots,giving them photoelectric properties similar to those of semiconductors.The modification of MOFs materials with carbon-based compounds,organic polymers,noble metal nanoparticles,inorganic oxides,and quantum dots,and the construction of MOFs-based photoelectrochemical sensing interfaces,can improve the electrical conductivity of MOFs,promote the separation of photogenerated electrons-holes,and thus improve the photoelectric conversion efficiency.The MOFs-based photoelectrochemical sensing interfaces amplify the signal generated by photoelectrochemical sensing,enabling ultra-sensitive detection of the target object.Based on these,this study provides a detailed introduction to the photoelectric activity mechanism,synthesis methods,and strategies for constructing photoelectric activity interfaces of MOFs-based materials.The applications of MOFs-based materials in photoelectrochemical sensing detection of small molecule compounds,immunoassay,enzyme activity and environmental analysis in recent years have been comprehensively reviewed.Finally,current challenges and future perspectives in this field are also proposed.
关键词
MOFs基材料/光电化学传感界面/光电化学传感分析Key words
MOFs-based materials/photoelectrochemical sensing interface/photoelectrochemical sensing analysis引用本文复制引用
基金项目
国家自然科学基金(41977129)
湖南省自然科学基金(2022JJ90020)
湖南省教育厅青年项目(22B0246)
出版年
2024
NETL
NSTL
万方数据