Hydrothermal Synthesis of Mesh-Like Bi2O2CO3/Bi2MoO6 Heterojunction with Enhanced Photocatalytic Activity

Heterojunctions of Bi2O2CO3 and Bi2MoO6 were synthesized via a one-pot hydrothermal method using urea as a morphology mediator. The phase structures and morphologies were measured by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM). The as-prepared Bi2O2CO3/Bi2MoO6 composite was assembled by many nanoparticles, forming a novel mesh-like nanostructure. The investigation on the degradation of Rhodamine B (Rh B) under the visible light illumination revealed that the Bi2O2CO3/Bi2MoO6 composite exhibited higher photocatalytic activity than single phase Bi2MoO6. The enhanced photocatalytic performance can be attributed to the formation of heterojunction interface in Bi2O2CO3/Bi2MoO6 which facilitates the transfer and separation of photogenerated electron-hole pairs.