Hybrid BiOBr/UiO-66-NH2 composite with enhanced visible-light driven photocatalytic activity toward RhB dye degradation
作者：Bibi, R (Bibi, Rehana)[ 1 ] ; Shen, QH (Shen, Quanhao)[ 1 ] ; Wei, LF (Wei, Lingfei)[ 1 ] ; Hao, DD
關(guān)鍵字：METAL-ORGANIC FRAMEWORKS; BIOX X; CO2 REDUCTION; PERFORMANCE; EFFICIENT; GRAPHENE; MOFS; BR; NANOPARTICLES; REMOVAL
論文來源：期刊
具體來源：RSC ADVANCES
發(fā)表時間：2018年
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-NH2 hybrid composite was successfully prepared by introducing various amounts of UiO66- NH2 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-NH2 composites exhibited higher photocatalytic activity than the pristine material.In RhB degradation experiments the hybrid composite with 15 wt% of UiO-66-NH2 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-NH2. 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.