Bismuth-rich Bi4O5X2 (XÂ =Â Br, and I) nanosheets with dominant {1Â 0Â 1} facets exposure for photocatalytic H2 evolution

Bismuth-rich Bi4O5X2 (X = Br, and I) nanosheets with dominant {1 0 1} facets exposure were used for photocatalytic H2 evolution for the first time.151