Synthesis of Walnut Shaped V2O3 Particles and Its Photocatalytic Activity for Methylene Blue Degradation Under Visible Light Irradiation

In this study, walnut-shaped V 2 O 3 particles with high photocatalytic activity in the visible light were synthesized by hydrothermal process. The V 2 O 3 samples synthesized with the various temperature conditions of the hydrothermal process were characterized using XRD, SEM, TEM, UV-Visible spectrometer and N 2 gas adsorption/desorption analysis. For investigating the photocatalytic performance of synthesized V 2 O 3 particles in the visible light condition, photodegradation experiments of methylene blue (MB) solution under artificial sunlight irradiation was conducted. As a result, the V 2 O 3 hydrothermal-synthesized at 280 °C was composed of pure V 2 O 3 crystal structure and showed high photocatalytic activity for the degradation of MB dye in visible light.