Abstract
A series of BiOBr photocatalysts with controllable morphology, crystallinity and crystalline facets orientation were prepared by a simple hydrolysis or alcoholysis method using BiBr3 as precursor in water (H2O), ethanol (EtOH) or isopropyl alcohol (IPA) at room temperature. The XRD, SEM, TEM, BET, and UV–Vis DRS were employed to characterize the phase structures, morphologies and physical properties of the photocatalysts. The results indicated that the solvent could influence the growth of BiOBr crystals, which further determined their specific photocatalytic performances. BiOBr prepared in water (BiOBr(H2O)) was in nanosheets-shaped morphology and was composed of the best crystallinity and unique (102) facets. BiOBr(H2O) showed superior photocatalytic activities and stability toward the degradation of MO, and also exhibited excellent with a degradation efficiency of 90% after five cycles. When BiBr3 was alcoholyed in IPA solvent, the obtained BiOBr(IPA) with (110) facets and flower-like morphologies displayed the best photocatalytic activity at the first round, but had a significant decrease in the following cycles. Hence, these results proved that the water is the best solvent and the hydrolytic method for BiOBr is feasible and promising.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
