摘要
本文以石墨相氮化碳(CNN)为荧光探针,制备了新型的汞离子(Hg(II))荧光传感器,主要原因是由于含有空轨道的Hg(II)可以通过共价键与CNNS中的N的π电子与形成Hg-N,使得CNNS的荧光猝灭,从而制备了基于CNN的猝灭型Hg(II)荧光传感器.该荧光传感器具有pH稳定、盐效应稳定、热稳定性好以及响应时间短等优势,同时具有良好的线性范围:0.1~60μM,且检出限达到了0.089μM.该荧光传感器已成功应用于实际水样中Hg(II)的检测.
In this study,graphitic carbon nitride(CNN)based a novel fluorescent sensor for the determination of mercury ion(Hg(II)).The main reason is that Hg(II)can make a result of quenching the significant intensity of fluorescent of CNNS by formation of a covalent bond between empty orbital of Hg(II)and theπelectrons of N.The fluorescent sensor the advantages of stable pH,stable salt effect,good thermal stability and short response time,what’s more,it has a good linear range:0.1~60μM with the detection limit is 0.089μM.At the same time,the fluorescent sensor has been successfully applied to the determination of Hg(II)in real water samples.
作者
郑璐嘉
ZHENG Lujia(Department of Food Engineering,Zhangzhou Institute of Technology,Zhangzhou,Fujian 363000,China)
出处
《闽南师范大学学报（自然科学版）》
2020年第1期68-73,共6页
Journal of Minnan Normal University：Natural Science
基金
福建省科技厅计划项目(2018N2002)
福建省中青年教师教育科研项目(JAT191420)
漳州市自然科学基金项目(ZZ2017J20,ZZ2018J46)。
关键词
石墨相氮化碳纳米片
汞离子
荧光传感器
graphitic carbon nitride nanosheet
mercury ion
fluorescent sensor
