Preparation and Photocatalytic Activity of BiOBr with High Exposure {102} Crystalline Surface

5th Annual International Workshop on Materials Science and Engineering

Yuan, Chunhua^1 ; Bao, Hongling^1 ; Ren, Yongqing^1

College of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology, Baotou

014010, China^1

关键词: Crystalline surfaces;    Degradation rate;    High exposures;    Hydrothermal methods;    Hydrothermal temperature;    Hydrothermal time;    Methylene Blue;    Visible light;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012040/pdf
DOI  :  10.1088/1757-899X/585/1/012040

来源: IOP

【 摘 要 】

Flake BiOBr was prepared by one-step hydrothermal method using NaBr and Bi(NO3)3•5H2O as raw materials. The structure of the samples was characterized by means of XRD, SEM, UV-VIS. The photocatalytic activity of BiOBr was studied with methylene blue as probe. The results show that BiOBr with high exposure {102} can be obtained when the hydrothermal temperature of the product is 160°C and the hydrothermal time is 24 h. Under visible light, the degradation rate of methylene blue was over 98%. When the catalyst was reused three times, the degradation rate could still reach 80%.