Characterization of porous bismuth oxide (Bi2O3) nanoplates prepared by chemical bath deposition and post annealing

Abstract

Porous β-Bi₂O₃ nanoplates were synthesized for the first time on FTO substrate via chemical bath deposition followed by annealing. They showed higher photoinduced current density than nonporous ones though the former possessed a larger band gap. The as prepared photoelectrodes exhibited superior stability in aqueous solutions. The results illustrate that the porous Bi₂O₃ nanoplate films have potential applications in photoelectrocatalysis.