基于石墨烯量子点的电化学发光传感器的构建及性能研究  

Construction and properties of electrochemiluminescence sensor based on gra-phene quantum dots

作　　者：臧传来 贺婕 杨正春[1] 涂莉 杨鑫 牛慧敏 李明辰 ZANG Chuan-lai;HE Jie;YANG Zheng-chun;TU Li;YANG Xin;NIU Hui-min;LI Ming-chen(School of Electronic Engineering,Advanced Materials and Printing Electronics Center,Tianjin University of Technology,Tianjin,300384,China;Graduate School of Engineering,Department of Electrical Engineering and Information System,University of Tokyo,Tokyo,113-8656,Japan)

机构地区：[1]天津理工大学电子电子工程学院先进材料与印刷电子中心,天津300384 [2]东京大学工学部研究科电气系,东京113-8656

出　　处：《天津理工大学学报》2021年第1期22-25,共4页Journal of Tianjin University of Technology

基　　金：天津市大学生创新创业计划(201710060046);第二批天津市人才发展特殊支持计划——高层次创新创业团队;食品安全检测技术及大数据分析创新团队.

摘　　要：铜离子是一种对于自然环境和人体健康都颇为棘手的重金属污染物,实现对其的快速检测具有较高的实际应用价值.而电化学发光传感器是一种基于电化学发光原理的检测技术,其具有分析速度快、灵敏度高、操作简单、可控性强等优势.本文提出了一种基于石墨烯量子点的电化学发光检测方法,利用量子点优异的光学和电学特性,可实现对水溶液中铜离子的快速检测,且操作简单.实验结果表明该传感器在铜离子为0.5~16μM的浓度范围内表现出良好的线性度,同时具有较好的稳定性,在污染物检测领域中具有一定的应用价值.As one of the heavy metals,copper ion has a lot of harm to human health and environment,so its rapid detection is of great practical value.Electrochemiluminescence(ECL)sensor is a rapid detection technology based on the principle of ECL,and has many advantages over other detection technologies,such as fast analysis speed,high sensitivity,simple operation,strong controllability,etc.This work combines the special properties of graphene quantum dots(GQDs)with the advantages of ECL detection,and proposes a simple and accurate method for the detection of copper ions by using the excellent optical and electrical properties of quantum dots.The experimental results show that the ECL sensor based on graphene quantum dots showed good linearity and stability in the concentration range of 0.5 to 16μM for the detection of copper ion.This work demonstrates that the ECL sensor has practical application value in detecting pollutant area.

关 键 词：量子点 电化学发光 铜离子 

分 类 号：TQ150.1[化学工程—电化学工业]