Enhanced photo-Fenton system across wide pH range based on Fe-Bi2WO6: Insight into the regulable microenvironment and ROS generation

Key Points

• Improved ROS generation was evident in a wide pH range due to the enhanced catalytic activity of Fe-Bi2WO6.
• Specifically, the system showed a significant increase in reactive oxygen species, with substantial consistency across varying conditions.
• Observational analysis focused on the microenvironment's role in optimizing the photo-Fenton process and influencing ROS production.
• Findings highlight that tuning environmental factors may further enhance the efficiency of catalytic systems in wastewater treatment.