| Autor: |
Karami-Kolmoti, Parisa, Beitollahi, Hadi, Modiri, Sina |
| Zdroj: |
Journal of Food Measurement and Characterization; 20220101, Issue: Preprints p1-11, 11p |
| Abstrakt: |
The current effort benefited from a simple hydrothermal production protocol to fabricate a nanocomposite using graphene oxide nanosheets anchored with manganese dioxide nanorods (MnO2NRs-GO) that was applied to construct a sensitive electrochemical catechol sensing system. As-produced nanocomposite was characterized by Field emission-scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and Fourier transformed-infrared spectroscopy (FT-IR), which was then drop-casted on glassy carbon electrode (MnO2NRs-GO/GCE) for sensor application. The MnO2NRs-GO/GCE showed remarkable electrocatalytic capacity for the redox reaction of catechol, with minimized redox overpotentials and boosted voltammetric peak currents. As-fabricated sensor displayed an admirable electrocatalytic behavior to catechol, with a narrow limit of detection (0.02 µΜ), a broad linear range (0.5–400.0 µM) and an impressive sensitivity (0.0503 µA/µΜ). The MnO2NRs-GO/GCE was also successful in sensing catechol in real specimens, with appreciable recovery rates. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full text from SpringerLink