| 초록 |
Semiconductor photocatalysts have been attracted much attention because of their high photocatalytic activity and chemical stability. Various heterogeneous photocatalysts have been utilized for many practical applications such as the purification of water and soil polluted with organic compounds and, the photocatalytic decomposition of toxic agents in water. In this work, we report the g-C3N4/BiVO4 photocatalysts synthesized by means of microwave hydrothermal process and their enhanced photocatalytic activities for the degradation of organic dyes under visible and simulated solar light irradiation. These photocatalytic materials were found to be more effective as compared to other conventional photocatalysts for the degradation of organic dye. The characterized by means of XRD, UV–vis diffuse reflectance, XPS, BET and SEM. The enhanced photocatalytic performance could be attributed to synergistic effects of band gap lowering, photoinduced electron-hole pair at the interface and the larger surface area of the g-C3N4 and metal oxide hybrid composite photocatalysts which promote the migration effciency of electron-hole pairs leading to enhanced photocatalytic activity under visible and simulated solar light irradiation. |
