Photocatalytic degradation and electricity generation in a rotating disk photoelectrochemical cell over hierarchical structured BiOBr film

- A double hierarchical structured BiOBr film was prepared by a facile way.
- The BiOBr film owned higher light utilization efficiency than Bi2O3 film.
- Compared with BiOCl, better visible light PC activity was obtained for BiOBr film.
- Besides sensitization, BiOBr could also be excited by visible light to generate ·OH.
- Stable electricity was measured in BiOBr/Ti-Pt rotating disk photo fuel cell.