This study reports
the synthesis of ferric vanadate (FeVO4) via a facile hydrothermal
method, focusing on demonstrating
its
exceptional electrochemical (EC) properties on detecting low-density
ascorbic acid (AA). The phase purity, crystallinity, structure, morphology,
and chemical compositional properties were characterized by employing
X-ray diffraction, energy-dispersive X-ray spectroscopy, scanning
electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy
techniques. EC impedance spectroscopy and cyclic voltammetry techniques
were also adopted in order to assess the EC response of a FeVO4-modified glassy carbon electrode for sensing AA at room temperature.
The AA concentration range adopted in this experiment is 0.1–0.3
mM at a working electric potential of −0.13 V. The result showed
functional excellence of this material for the EC determination of
AA with good stability and reproducibility, promising its potentiality
in connection with relevant sensing applications.