Fabrication of Nitrogen-doped Carbon Nanoparticles and Application in Detection of Free Chlorine
10.11895/j.issn.0253-3820.160563
- VernacularTitle:氮掺杂碳纳米粒子的制备及在游离氯检测中的应用
- Author:
Tingting HUANG
;
Liling ZOU
;
Xuewan LAI
;
Hao HUANG
;
Shichao ZHANG
;
Jiaqing GUO
;
Wen WENG
- Keywords:
Nitrogen-doped carbon nanoparticles;
Sucrose;
Urea;
Fluorescence quenching;
Free chlorine
- From:
Chinese Journal of Analytical Chemistry
2017;45(2):199-204
- CountryChina
- Language:Chinese
-
Abstract:
Nitrogen-doped carbon nanoparticles (N-CNPs) with a fluorescence quantum yield of 15.1％ were prepared from sucrose and urea in oleic acid medium by a one-pot solvothermal method.A new approach for quick,sensitive,and selective determination of free chlorine in water was developed based on fluorescence quenching of N-CNPs.There existed a good linear correlation between the fluorescence quenching and the concentration of ClO-in the range of 0.05-25.00 μmol/L.The limit of detection (LOD,S/N =3) was estimated to be 23 nmol/L.This method can be applied to the determination of free chlorine in real water samples.
