Methylparaben sensor based on electrochemical reduction of graphene oxide/nickel-nickel oxide
The modified electrode was prepared by the electrochemical reduction method, and the chemical sensor of electro-reduction graphene oxide/nickel-nickel oxide was constructed. The sensor was characterized by Raman spectroscopy, field emission scanning electron microscope (FE-SEM), and X-ray photoelect...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN ZH |
| Publicado: |
Academic Journals Center of Shanghai Normal University
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/79cde77e8a6742088b0b4e1aa15abc02 |
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| Sumario: | The modified electrode was prepared by the electrochemical reduction method, and the chemical sensor of electro-reduction graphene oxide/nickel-nickel oxide was constructed. The sensor was characterized by Raman spectroscopy, field emission scanning electron microscope (FE-SEM), and X-ray photoelectron spectroscopy(XPS). The electrochemical behavior of the sensor was analyzed by differential pulse voltammetry(DPV). The sensor showed good electrocatalytic ability and can be used to detect methylparaben(MP). Under optimized conditions, the sensor showed a good linear relationship in the range of 5-60 μmol·L<sup>-1</sup>, and the detection limit was 0.47 μmol·L<sup>-1</sup>. The sensor has good repeatability, high sensitivity, selectivity, and stability. The developed sensor has been successfully applied to the detection of MP in cosmetics, and the recovery rate is between 97% and 109%. |
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