Promotion Effect of Palladium on BiVO4 Sensing Material for Epinephrine Detection

In this study, the Pd/BiVO4 composite was prepared by hydrothermal method as an electrochemical sensing material for epinephrine. X-ray diffraction, scanning electron microscopy, and a transmission microscope were used to characterize samples. detection system, cyclic voltammetry differential pulse applied measure concentration of epinephrine solution (0.9–27.5 µM) with Pd/BiVO4-coated glassy carbon electrode. As result, oxidation peak current Pd/BiVO4/GCE demonstrated good linearity concentration. The limit 0.262 µM 0.154 µM, respectively. Additionally, proposed exhibited reproducibility, stability, selectivity. A plausible mechanism proposed.