A nano-surface monocrystalline BiVO4 nanoplate photoanode for enhanced photoelectrochemical performance

A single-crystal BiVO4 photoanode with a surface nanostructure is prepared by a low-cost and simple etching process. As a result, the modified photoanode shows a higher photocurrent density and a lower onset potential, which is because of the larger electrochemical active surface area and abundant oxygen vacancies on the surface.