A Sequential Doping Strategy for Architecturally Controlled BiVO4 Photoanodes with Synergistic Co-Doping Enabled by BiOI Conversion for Water Splitting

Key Points

• To enhance the efficiency of BiVO4 photoanodes for water splitting using a sequential doping strategy.
• Developed nanoporous BiVO4 photoanodes through BiOI template conversion.
• Utilized a co-doping strategy to improve photoanode properties.
• Assessed morphology and performance of the created films.
• Achieved a high-quality, binder-free, and crack-free BiVO4 film.
• Improved efficiency in water splitting in comparison to non-doped samples.