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A highly sensitive electrochemical sensor based on nanoflower-like MoS2-Ag-CNF nanocomposites for the detection of VB2

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Abstract

The sensitive determination of VB2 has broad analytical applications. In this work, a novel VB2 electrochemical sensor based on the hydrothermal method was constructed to uniformly grow molybdenum disulfide and silver nanoparticles on the surface of electrospun carbon fiber. MoS2-Ag-CNF was characterized by scanning electron microscope, EDS spectrum, TEM analysis, cyclic voltammetry, differential pulse voltammetry, and electrochemical impedance spectroscopy. The sensor exhibited a high sensitivity of 0.05 to 40 μΜ with a fast response time and a low detection limit of 0.02 μM. The electrode also showed outstanding selectivity toward various interferences. These results indicate that the MoS2-Ag-CNF nanocomposites may be promising electrode materials for electrochemical biosensing.

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Funding

This work is supported by the National Natural Science Foundation of China (No. 21671132).

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Authors and Affiliations

  1. College of Science, Shanghai University, Shanghai, 200444, People’s Republic of China

    Jiaxin Lin, Qianwen Mei, Yingchun Duan, Chenhong Yu, Yaping Ding & Li Li

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  1. Jiaxin Lin
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  2. Qianwen Mei
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  3. Yingchun Duan
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  4. Chenhong Yu
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  5. Yaping Ding
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  6. Li Li
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Correspondence to Yaping Ding or Li Li.

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Lin, J., Mei, Q., Duan, Y. et al. A highly sensitive electrochemical sensor based on nanoflower-like MoS2-Ag-CNF nanocomposites for the detection of VB2. J Nanopart Res 22, 274 (2020). https://doi.org/10.1007/s11051-020-04998-1

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