Reduction of V2O5 thin films deposited by aqueous sol-gel method to VO2(B) and investigation of its photocatalytic activity

- Preparation of VO2(B) films by aqueous sol-gel method and their characterization.
- Influence of annealing conditions on the mechanism of V2O5 film reduction.
- The VO2(B) films with energy gap of 2.8 eV show photocatalytic activity.
- The films with higher roughness exhibit increased photoactivity.