Fabrication of Bi₂MoO/ZnO Heterojunction Nanosheet Array with High Photoelectrochemical Property.

Herein, we demonstrate the synthesis of Bi₂MoO nanosheet array followed with electrodepositing ZnO layer, resulting in Bi₂MoO/ZnO heterojunction nanosheet array. The thickness of nanoparticle-based ZnO layer on the surface of Bi₂MoO nanosheets can be rational controlled by regulating the electrodepositing time. The combination of oriented Bi₂MoO nanosheet array and ZnO layer could not only enhance the conductivity and surface area but also facilitate the charge separation. As expected, the heterojunction electrode yields a photocurrent density of 430 A/cm² at 0.8 , which is much higher than that of pristine Bi₂MoO and ZnO nanosheet array.