Preparation and photocatalytic properties of Zn0.5Cd0.5S/ BiOBr heterojunction

In this study, a Zn0.5Cd0.5S/BiOBr composite photocatalyst was constructed using an in situ growth technique. SEM and TEM revealed that the ZCS/BiOBr photocatalyst has an irregular sheet structure, and Zn0.5Cd0.5S particles form a heterojunction structure with BiOBr. The 70-Zn0.5Cd0.5S/BiOBr heterojunction exhibited the highest photocatalytic degradation efficiency for methylene blue, and the decolorization rate of MB was 99.52% in 240 min. The degradation rates were 1.83 and 4.76 times those of Zn0.5Cd0.5S and BiOBr, respectively. After four cycles, there was no significant decrease in photocatalytic activity; the main active substances involved in the degradation process were h(+ )and .OH.

Automated summary

In this study, a Zn0.5Cd0.5S/BiOBr composite photocatalyst was constructed using an in situ growth technique. The 70-Zn0.5Cd0.5S/BiOBr heterojunction exhibited the highest photocatalytic degradation efficiency for methylene blue, and the degradation rates were 1.83 and 4.76 times those of Zn0.5Cd0.5S and BiOBr, respectively. After four cycles, there was no significant decrease in photocatalytic activity, and the main active substances involved in the degradation process were h(+) and .OH.