基于碳量子点的ECL法检测二氧化硫  

Detection of SO2 by ECL Method based on Carbon Quantum Dots

作　　者：杜亚男 周晨 陈峰 王颖 张玉琳 许若筠 李菊 Du Ya’nan;Zhou Chen;Chen Feng;Wang Ying;Zhang Yulin;Xu Ruoyun;Li Ju(College of Chemistry and Materials,Ningde Normal University,Ningde 352100;Fujian Key Laboratory of Eco-Industrial Green Technology,Nanpin 353000;Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry,Ningde Normal University,Ningde 352100;Province University Key Laboratory of Green Energy and Environment Catalysis,Ningde Normal University,Ningde 352100,China)

机构地区：[1]宁德师范学院化学与材料学院,福建宁德352100 [2]福建省生态产业绿色技术重点实验室,福建南平353000 [3]绿色能源与环境催化福建省高校重点实验室,福建宁德352100 [4]福建省特色生物化工材料重点实验室,福建宁德352100

出　　处：《广东化工》2022年第24期208-210,207,共4页Guangdong Chemical Industry

基　　金：福建省大学生创新创业项目(202010398017);宁德师范学院科研资助项目(2016Y05);福建省生态产业绿色技术重点实验室(武夷学院)开放课题(WYKF2017-5)。

摘　　要：二氧化硫作为大气污染物,对人类生活环境存在大范围、长期的慢性危害。本文发现亚硫酸钠同碳量子点作用,在亚硫酸钠的一定浓度范围会使碳量子点发光强度发生增强,且发光强度的变化与亚硫酸根离子浓度形成良好的线性关系。据此开发出一种电致化学发光分析方法,用于大气中二氧化硫的含量检测,检出限为2.78 ppm,线性范围为2.78~1000 ppm。Sulfur dioxide is a kind of air pollutant with large-scale and long-term chronic harm to human living environment. It is found that sodium sulfite can enhance the luminous intensity of CQDs within a certain concentration range, and the enhancement of luminous intensity has a good linear relationship with the concentration of sulfite. Based on this, an electrochemiluminescence analysis method is developed for the detection of sulfur dioxide in the atmosphere. The detection limit is 2.78 ppm and the linear range is 2.78~1000 ppm.

关 键 词：电致化学发光 碳量子点 二氧化硫 亚硫酸盐 气体传感 

分 类 号：TQ[化学工程]