Two Growth Modes of Metal Oxide in the Colloidal Crystal Template Leading to the Formation of Two Different Macroporous Materials

摘要

The experimental results show that there are two growth modes of crystalline metal oxide in the colloidal crystal template,which depend on the quality of the colloidal crystal.In well-ordered colloidal crystal templates,the metal oxide growth follows the structure of the colloidal crystal;an4 high quality three-dimensional ordered macroporous(3DOM)Cu2O or ZnO are formed.In contrast,in less-ordered colloidal crystal templates,metal oxide is grown according to its own capital structure,and cubic-shaped macroporous Cu2O or sheetlike macroporous ZnO are formed.Our method provides an easy and convenient way to prepare three-dimensional ordered macroporous materials or shaped macroporous materials via adjusting the level of ordered arrangement of the colloidal crystal templates.