Influence of photoinduced Bi-related self-doping on the photocatalytic activity of BiOBr nanosheets

Under UV irradiation, self-doped Bi5+ is evidenced to be generated on the surface of BiOBr nanosheets, but with well-preserved crystal structure and morphology compared with pure counterpart. Bi5+ self-doping BiOBr (BiOBr-4) exhibits distinct photocatalytic mode for dyes degradation, as compared with pure BiOBr nanosheets. These photodegradation distinctions are mainly due to the simultaneous occurrence of two photoinduced hole (h+) mediated...