Construction of Bi(3)O(4)Br/Bi(5)O(7)I/BiOBr Dual-S Scheme Heterojunctions: Efficient e(-)-h(+) Separation Enhances Outstanding Antibacterial and Degradation Performance.

A ternary Bi(3)O(4)Br/Bi(5)O(7)I/BiOBr heterojunction achieves 100% bacterial inactivation within 15-20 minutes, outperforming binary systems in photocatalytic efficiency.

• Why it matters: Efficient separation of photogenerated charge carriers is crucial for improving photocatalyst performance, yet remains a significant challenge limiting practical applications in antibacterial and pollutant degradation.
• What they did: Researchers constructed a ternary photocatalyst using a dual-path charge transfer mechanism via room temperature stirring, enhancing charge separation and transport through dual built-in electric fields.
• The result: The improved charge dynamics led to superior antibacterial activity and pollutant removal rates, providing a promising approach for advancing photocatalytic materials in environmental and health applications.