Microchimica Acta

, 185:315 | Cite as

Electrochemical determination of 2,4,6-trinitrophenol using a hybrid film composed of a copper-based metal organic framework and electroreduced graphene oxide

  • Yong WangEmail author
  • Wei Cao
  • Luyao Wang
  • Qianfen Zhuang
  • Yongnian Ni
Original Paper


A metal organic framework (MOF) of the type copper(II)-1,3,5-benzenetricarboxylic acid (Cu-BTC) was electrodeposited on electroreduced graphene oxide (ERGO) placed on a glassy carbon electrode (GCE). The modified GCE was used for highly sensitive electrochemical determination of 2,4,6-trinitrophenol (TNP). The fabrication process of the modified electrode was characterized by scanning electron microscopy and electrochemical impedance spectroscopy. Differential pulse voltammetry (DPV) demonstrates that the Cu-BTC/ERGO/GCE gives stronger signals for TNP reduction than Cu-BTC/GCE or ERGO/GCE alone. DPV also shows TNP to exhibit three reduction peaks, the first at a potential of −0.42 V (vs. SCE). This potential was selected because the other three similarly-structured compounds (2-nitrophenol, 4-nitrophenol, 2,4-dinitrophenol) do not give a signal at this potential. Response is linear in the 0.2 to 10 μM TNP concentration range, with a 0.1 μM detection limit (at S/N = 3) and a 15.98 μA∙μM−1∙cm−2 sensitivity under optimal conditions. The applicability of the sensor was evaluated by detecting TNP in spiked tap water and lake water samples. Recoveries ranged between 95 and 101%.

Graphical abstract

Schematic presentation of an electrochemical sensor that was fabricated by electrodeposition of the metal-organic framework (MOF) of copper(II)-1,3,5-benzenetricarboxylic acid (Cu-BTC) onto the surface of electroreduced graphene oxide (ERGO) modified glassy carbon electrode (GCE). It was applied to sensitive and selective detection of 2,4,6-trinitrophenol (TNP).


Coordination polymers Nitroaromatic compounds Picric acid Nanocomposites Electrodeposition Electrocatalysis Differential pulse voltammetry 2,4,6-Trinitrophenol Environmental analysis 



The authors acknowledge support from the National Natural Science Foundation of China (NSFC−21305061), the Natural Science Foundation of Jiangxi Province (20171BAB203018 and 20151BAB203021), the Jiangxi Provincial Department of Education (GJJ160006 and GJJ160204), the Open Funds of the State Key Laboratory of Electroanalytical Chemistry (SKLEAC-201802), the State Key Laboratory of Chemo/Biosensing and Chemometrics of Hunan University (SKLCBC−2013010), and the Graduate Student Innovation Program of Nanchang University (CX2017040).

Compliance with ethical standards

The author(s) declare that they have no competing interests.

Supplementary material

604_2018_2857_MOESM1_ESM.pdf (1.8 mb)
ESM 1 (PDF 1798 kb)


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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of ChemistryNanchang UniversityNanchangChina

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