The effect of morphology and crystal structure on the photocatalytic and photoelectrochemical performances of WO.

A template-based solvothermal method was successfully developed for the controlled synthesis of two-dimensional (2D) monoclinic WO nanoplate/nanosheet arrays and three-dimensional (3D) hexagonal WO nanosphere/nanocage structures with single crystal petals. The structure-directing agents played an important role in controlling the morphology and phase of WO samples. The results showed that the WO nanospheres exhibited the highest visible light absorption capacity and a photocurrent density of 0.