Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (3): 350-358.DOI: 10.11944/j.issn.1000-0518.2020.03.190256

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Preparation of Nitrogen and Iron Co-doped Carbon Nanoparticles and Their Applications in Detection of Hydrogen Peroxide and Glucose

SUN Li'naa*(),LI Yanb,GUO Hantaob,HUANG Tingtingb,YAO Bixiab,WENG Wenbc   

  1. aCollege of Food Engineering, Zhangzhou Institute of Technology,Zhangzhou,Fujian 363000,China
    bCollege of Chemistry,Chemical Engineering and Environment,Minnan Normal University,Zhangzhou,Fujian 363000,China
    cFujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology,Zhangzhou,Fujian 363000,China
  • Received:2019-09-29 Accepted:2019-12-20 Published:2020-03-01 Online:2020-03-10
  • Contact: SUN Li'na
  • Supported by:
    Supported by the Natural Science Foundation of Fujian Province of China(No.2016Y0065), the Major Science and Technology Projects of Zhangzhou City(No.zz2018ZD20), and the Education and Scientific Research Project for Young and Middle-aged Teachers of Fujian Province(No.JAT171093)

Abstract:

Nitrogen and iron co-doped carbon nanoparticles (N/Fe-CNPs) were synthesized by one-pot solvothermal method using L-tartaric acid and citric acid monohydrate as mixed carbon sources with the addition of ferric chloride hexahydrate, and ethylenediamine as the nitrogen source and polymerization reagent. The as-prepared N/Fe-CNPs could catalyze 3,3',5,5'-tetramethylbenzidine to produce the soluble blue product. Combined with glucose oxidase (GOx), a sensitive method for the detection of hydrogen peroxide and glucose was established. The concentration of hydrogen peroxide and glucose has a good linear relationship with the absorbance of the reaction system. The limit of detection was calculated to be 42.5 and 76.1 nmol/L for hydrogen peroxide and glucose, respectively.

Key words: nitrogen and iron co-doped carbon nanoparticles, peroxidase mimetics, glucose oxidase, detection of hydrogen peroxide, detection of glucose