Metal–organic framework (MOFs) based composites have received more research interest for photocatalytic applications during recent years.
Metal–organic framework (MOFs) based composites have received more research interest for photocatalytic applications during recent years. In this work, a highly active, visible light photocatalyst BiOBr/UiO-66-NH 2 hybrid composite was successfully prepared by introducing various amounts of UiO-66-NH 2 with BiOBr through a co-precipitation method. The composites were applied for the photocatalytic degradation of RhB (rhodamine B) dye. The developed BiOBr/UiO-66-NH 2 composites exhibited higher photocatalytic activity than the pristine material. In RhB degradation experiments the hybrid composite with 15 wt% of UiO-66-NH 2 shows degradation efficiency conversion of 83% within two hours under visible light irradiation. The high photodegradation efficiency of BUN-15 could be ascribed to efficient interfacial charge transfer at the heterojunction and the synergistic effect between BiOBr/UiO-66-NH 2. In addition, an active species trapping experiment confirmed that photo-generated hole + and O 2 − radicals are the major species involved in RhB degradation under visible light.