Enhanced photocatalytic activity of homoassembled ZnO nanostructures on electrospun polymeric nanofibers: A combination of atomic layer deposition and hydrothermal growth

- Two types of ZnO with diverse optical qualities for photocatalytic activity (PCA).
- ALD of ZnO on nanofibers with dominant oxygen vacancies and grain boundaries.
- Growth of single crystalline ZnO nanoneedles on ALD seeds via hydrothermal process.
- The needle structure supports vectorial transport of photo-charge carriers.
- PCA takes place at surface defects of seed valence & conduction bands of needles.