Synthesis of novel Bi/Bi4O5Br2 via a UV light irradiation for decomposing the oil field pollutants

Semimetal bismuth attracted extensive interests of researchers, owing to its merit of the surface particle resonance (SPR) and co-catalyst properties. In this paper, under the UV-vis Light irradiation, a series of Bi/Bi4O5Br2 composites were synthesized through a molecular precursor hydrolytic process. The Bi nanoparticles were performed by adding the glucose in this process. The as-prepared products were analyzed by several characterization methods. The photodegradation experiment was used to evaluate the photocatalytic activity, Bi4O5Br2-8% displayed superior photocatalytic performance of decomposition of organic boron, which was about 1.2 times as effective as Bi4O5Br2. Furthermore, the enhanced photo-induced carrier separation rate of Bi/Bi4O5Br2Bi4O5Br2 was confirmed by the photocurrent and photoluminescence spectra (PL). The charge transfer characteristic between bismuth and Bi4O5Br2 has been considered as the origin for the promoted photo reactivity. This work affords a new reference for preparation composite photocatalyst that with multiple advantageous effect and powerful capability.