Founded in 1987, Bimonthly
Supervisor:Jiangxi University Of Science And Technology
Sponsored by:Jiangxi University Of Science And Technology
Jiangxi Nonferrous Metals Society
ISSN:1674-9669
CN:36-1311/TF
CODEN YJKYA9
HUANG Haiping, XU Liang, YUE Yafeng, XU Fang. Nitrite electrochemical sensor based on graphene quantum dots modified electrode[J]. Nonferrous Metals Science and Engineering, 2017, 8(2): 47-51. DOI: 10.13264/j.cnki.ysjskx.2017.02.008
Citation: HUANG Haiping, XU Liang, YUE Yafeng, XU Fang. Nitrite electrochemical sensor based on graphene quantum dots modified electrode[J]. Nonferrous Metals Science and Engineering, 2017, 8(2): 47-51. DOI: 10.13264/j.cnki.ysjskx.2017.02.008

Nitrite electrochemical sensor based on graphene quantum dots modified electrode

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  • Received Date: September 01, 2016
  • Published Date: April 29, 2017
  • Material of grapheme quantum dots was dropped on the surface of glassy carbon electrode to form its film, and nitrite (NO2-) electrochemical sensor was prepared. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) were utilized to characterize grapheme quantum dots (GQDs). Meanwhile, electrochemical behavior of nitrite was researched by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and current-time curve (I-T) on the surface of modified electrode. The experimental results show that electrochemical sensor exhibits a good electrocatalysis to NO2- and possesses a broad linear range in 1~29 μmol/L with detection limit of 3.33×10-7 mol/L (S/N=3). The electrochemical sensor shows the characteristics of wide detection range, low detection limit and good stability.
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