Evolution of space-efficient and facet-specific ZnO 3-D nanostructures and their application in photocatalysis†
Abstract
We report new structural designs to dramatically increase the surface area of the ZnO 1}-stacked nanocones and {10
0}-nanoforest, have been prepared by facet-selective
1} facet-maximized ZnO stacked nanocones and oriented nanocolumn growth on ZnO hexagonal nanocones generates {10
0} facet maximized ZnO nanoforests. These facet-specific ZnO
1} stacked nanocones with a polar {10
1} plane maximized structure and high density of oxygen vacancies have shown the best performance among structures examined. We also demonstrate a great photocatalytic performance of the Au supported 3-D ZnO