ZnO flower: Self-assembly growth from nanosheets with exposed {11¯00} facet, white emission, and enhanced photocatalysis

- ZnO flowers consisted of single crystal nanosheets have been fabricated.
- Single crystal nanosheet with {11¯00} facet has higher photocatalytic activity.
- Site-specific nucleation-growth process leads to the formation of ZnO flowers.
- ZnO flowers exhibited white emission and an enhanced photocatalytic performance.
- Special structural feature has important effects on the photocatalytic activity.