Recent Progress in Optical Sensors Based on MXenes Quantum Dots and MXenes Nanosheets  

作　　者：Chunxiao Lin Xinhong Song Weilan Ye Ting Liu Mingcong Rong Li Niu 

机构地区：[1]Guangzhou Key Laboratory of Sensing Materials and Devices/Center for Advanced Analytical Science/School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou 510006,China [2]College of Ocean Science and Engineering,Shanghai Maritime University,Shanghai 201306,China

出　　处：《Journal of Analysis and Testing》2024年第1期95-113,共19页分析检测（英文）

基　　金：supported by the National Youth Foundation of China(21904027);Natural Science Foundation of Guangdong Province(2019A1515011328);Science and Technology Projects in Guangzhou(202201000002);Innovative Training Program for College Students in Guangzhou University(xj202211078179).

摘　　要：In recent years,MXenes,as a new promising two-dimensional material,have received extensive attentions in the fields of environmental remediation,catalysts,sensors,and energy storage.To broaden the applications of MXenes in sensing,MXenes nanosheets(MNSs) and MXenes quantum dots(MQDs) are prepared by physical etching or chemical oxidation.MNSs are monolayered or multilayered MXenes nanosheets within several nanometers in height,and can serve as the perfect reaction substrate and fluorescence quencher.MQDs are spherical,fluorescent MXenes QDs within several nanometers in size,which possess favorable stability and photo stability.Since the distinct features such as high conductivity,favorable hydrophilicity,biocompatibility,abundant surface functional groups,and easy functionalization,MNSs and MQDs show potential applications in the fields of anti-counterfeiting,environmental monitoring,biosensing and biomedicine.This review focuses on the research of MNS s/MQDs-based optical sensors,including colorimetric sensors,fluorescence sensors,electrochemiluminescence sensors,surface plasmon resonance sensors,and surface-enhanced Raman scattering sensors.Furthermore,the current challenges and prospects concerning MNSs/MQDs-based optical sensing techniques are discussed.

关 键 词：MXenes quantum dots FLUORESCENCE COLORIMETRY ELECTROCHEMILUMINESCENCE Surface plasmon resonance 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TP212[自动化与计算机技术—检测技术与自动化装置]