Preparation of ZnO hierarchical nanoarchitectures and their photocatalytic performance

ZnO HNAs were prepared via a simple hydrothermal process. The samples were characterized via different techniques. The effect of temperature on the morphology, structure and properties of ZnO samples was investigated. The obtained ZnO HNA samples exhibited an impressive photocatalytic performance and good separation-recycling performance due to the porous structures assembled by nanosheets and large secondary particle size.