A glassy carbon electrode modified with N-doped carbon dots for improved detection of hydrogen peroxide and paracetamol

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

53 Scopus Citations
View graph of relations

Author(s)

  • Li Fu
  • Guosong Lai
  • Cheng-Te Lin
  • Jinhong Yu
  • Aimin Yu
  • Zhong Liu
  • Kefeng Xie
  • Weitao Su

Detail(s)

Original languageEnglish
Article number87
Journal / PublicationMicrochimica Acta
Volume185
Online published8 Jan 2018
Publication statusPublished - Feb 2018

Abstract

Nitrogen doped carbon dots (NCDs) were synthesized using a low temperature approach and used to modify a glassy carbon electrode (GCE) via dipping. The oxygen groups on the surface of the NCDs, and the charge delocalization of the NCDs warrant an excellent electrocatalytic activity of the GCE toward oxidation of paracetamol (PA) and reduction of H2O2. PA and H2O2 were detected at 0.34 V and −0.4 V (both vs. Ag/AgCl) using differential pulse voltammetry and amperometric I-T measurement, respectively. The modified GCE has a linear response to PA in the 0.5 to 600 μM concentration range, and to H2O2 in the 0.05 μM to 2.25 mM concentration range. The detection limits are 157 nM and 41 nM, respectively. In our perception, the modified GCE holds promise for stable, selective and sensitive determination of PA and H2O2 in pharmaceutical analysis.

Research Area(s)

  • Cyclic voltammetry, Differential pulse voltammetry, Electrochemical sensor, Electrode modification, H2O2 disinfector, Low temperature synthesis, Nanomaterial, Pharmaceutical analysis, Surface functional group

Citation Format(s)

A glassy carbon electrode modified with N-doped carbon dots for improved detection of hydrogen peroxide and paracetamol. / Fu, Li; Wang, Aiwu; Lai, Guosong; Lin, Cheng-Te; Yu, Jinhong; Yu, Aimin; Liu, Zhong; Xie, Kefeng; Su, Weitao.

In: Microchimica Acta, Vol. 185, 87, 02.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review