Fabrication of three-dimensional ZnO/TiO₂ heteroarchitectures via a solution process

Three-dimensional ZnO/TiO₂ hierarchical structures with high densities of secondary ZnO nanostructures grown on primary TiO₂ fibers have been obtained by a combination of electrospinning and a hydrothermal technique. The morphology of the secondary ZnO nanostructures could be further controlled by adjusting experimental parameters, and then two different morphologies of ZnO/TiO₂ heteroarchitectures with ZnO nanorods and ZnO nanoplates were successfully achieved.