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Journal of Materials Science

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13.01.2020 | Materials for life sciences

Composites of thiol-grafted PEDOT with N-doped graphene or graphitic carbon nitride as an electrochemical sensor for the detection of paracetamol

verfasst von: Yinqiang Yan, Ruxangul Jamal, Zongna Yu, Ruanye Zhang, Wenli Zhang, Yi Ge, Yingcheng Liu, Tursun Abdiryim

Erschienen in: Journal of Materials Science | Ausgabe 13/2020

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Abstract

A novel electrochemical sensor with thiol-grafted PEDOT/N-doped graphene (N-Gr/PEDOT-MeSH) and thiol-grafted PEDOT/graphitic carbon nitride (g-C₃N₄/PEDOT-MeSH) composites was fabricated for the detection of paracetamol (PAR). The formation mechanism of the obtained structure was thoroughly studied. And from the electrochemical results, the synergistic effect between the PEDOT-MeSH and g-C₃N₄ or N-Gr improved the electron transfer and conductivity of the modified electrodes and enhanced the sensing responses toward the electrochemical oxidation of PAR. The calibration curve of N-Gr/PEDOT-MeSH and g-C₃N₄/PEDOT-MeSH composites exhibited the wider linear responses for PAR, ranging from 2 to 1680 µM and 0.4 to 1280 µM, and the detection limits (S/N = 3) were 1.42 µM and 1.0 µM, respectively. Furthermore, the obtained composites exhibited the excellent reproducibility, lower detection limit and good stability. And it was capable of detecting PAR in real samples with a satisfying result.

Vorheriger Artikel Covalent hybrid materials between polyoxometalates and organic molecules for enhanced electrochemical properties

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Titel: Composites of thiol-grafted PEDOT with N-doped graphene or graphitic carbon nitride as an electrochemical sensor for the detection of paracetamol
verfasst von: Yinqiang Yan
Ruxangul Jamal
Zongna Yu
Ruanye Zhang
Wenli Zhang
Yi Ge
Yingcheng Liu
Tursun Abdiryim
Publikationsdatum: 13.01.2020
Verlag: Springer US
Erschienen in: Journal of Materials Science / Ausgabe 13/2020
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-020-04351-w

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