Results 1 - 1 of 1
Results 1 - 1 of 1. Search took: 0.018 seconds
[en] In this study, the successful construction of a novel AgVO3/BiVO4 heterojunction photocatalyst via a facile two-step method was reported. The organic dye Rhodamine B (RhB) was chosen as a simulative pollutant to investigate the photocatalytic performances of the samples. The results showed that the AgVO3/BiVO4 heterojunction possessed remarkably enhanced photocatalytic activity under visible-light irradiation compared with individual components. The AgVO3/BiVO4 heterojunction possessed the highest rate constant, which was about 17.2 and 3.1 times higher than those of pure BiVO4 and AgVO3, respectively. Such an enhancement was mainly ascribed to the formation of suitable heterojunction structure with intimate interfacial contact between AgVO3 and BiVO4, resulting in the effective separation of photogenerated electron-hole pairs. The possible photocatalytic mechanism was also proposed based on the trapping experiments of active species, indicating that h+ and ·OH played a key role in the photocatalytic degradation process. - Highlights: • A novel AgVO3/BiVO4 heterojunction has been synthesized by a facile method. • The AgVO3/BiVO4 shows enhanced visible-light-driven photocatalytic activity. • The improved separation efficiency of photogenerated carriers is the main reason. • Our findings can offer useful insights for development of efficient photocatalysts.