Nanoworm BiVO₄ Photoelectrochemical Sensor Prepared by a Cyanuric-Chloride-Assisted Sol-Gel Process and Its Sensing Property for Ascorbic Acid

摘要

A nanoworm BiVO4 photoanode was successfully synthesized by sol-gel drop-casting for thedetermination of ascorbic acid. The structure and surface morphology of the obtained samples werecharacterized, and their photoelectrochemical properties and sensing performance towards ascorbic acidwere investigated. The precursor solids were also investigated, and the results proved that cyanuricchloride, which was bound with other precursors, generated the nanoworm morphology. The nanowormBiVO4 photoanode enhanced the photocurrent density and exhibited a sensitivity of 68.9 μA mM-1 cm-2towards ascorbic acid with high selectivity under visible light illumination.