ZnZrO2-adorned graphitic carbon nitride (g-C3N4) on a laser-induced graphene electrode as an electrochemical sensor for the detection of ractopamine in meat samples.

Autor: Ganapathi Raman, R., Muhammed Shameem, M., Kavitha, P., Sankar, C., Kalaivani, S. R.
Předmět:
Zdroj: New Journal of Chemistry; 11/28/2024, Vol. 48 Issue 44, p18931-18942, 12p
Abstrakt: Ractopamine (RA) is a phenolic substance widely used as an animal food additive. However, excessive RA use can have adverse effects on human health. Therefore, the development of a sensor for accurate RA detection is crucial. In this study, a flexible and economical laser-induced graphene (LIG) sensor was fabricated by uniformly drop casting ZnZrO2@g-C3N4 NPs on the LIG surface. Further, the fabricated electrochemical sensor was characterized by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), HR-SEM with EDS, HR-TEM, BET and EIS analytical techniques. Owing to the good synergistic effect of ZnZrO2@g-C3N4 and LIG, the ZnZrO2@g-C3N4/LIG electrochemical sensor exhibits brilliant RA sensitivity and rapid sensing with excellent linearity (0.01–0.15 μM), low limit of detection (0.1537 μM), high sensitivity of 0.3748 μA mM−1 cm−2, and outstanding repeatability. The sensor successfully detected RA in real samples with recoveries ranging from 96.8–103%. This study introduces a new RA detection approach that uses LIG-metal and metal oxides in electrochemical sensing. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index