In situ anion-exchange synthesis and photocatalytic activity of AgBr/Ag2O heterostructure

- AgBr/Ag2O heterostructures were synthesized by a simple in situ anion-exchange route.
- The synthesized AgBr/Ag2O-5 exhibited excellent visible-light catalytic activity.
- AgBr/Ag2O heterostructure is helpful to inhibit the recombination of photoinduced carriers.