Piezo-photocatalytic Oxidation of Organic Pollutant on Corona Polarized BaTiO₃/TiO₂ Heterojunction Films

Abstract

In this study, the synergistic effects of photocatalytic reaction and ferroelectric polarization were investigated using the stacked layers of a ferroelectric BaTiO₃ and TiO₂ photocatalyst. Decolorization of organic dyes was successfully accelerated on the corona polarized BaTiO₃/TiO₂ layers by simultaneous applying the ultrasonic vibration and light illumination.