Microwave method synthesis and photocatalytic activity of Nano-BiOBr photocatalyst. (17th August 2020)

• Record Type: Journal Article
• Authors: Wang, Xiaoyang; Zhang, Fuchun; Yang, Yanning; Shao, Tingting; Zhang, Shuili; Zhou, Benshan
• Is Part Of: Ferroelectrics. Volume 564(2020)
• Page Start: 70
• Page End: 77
• Publication Date: 2020-08-17
• Subjects: BiOBr -- microwave method -- degradation efficiency；photocatalytic activity -- RhB; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2020.1761703
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: Nano-BiOBr photocatalysts were successfully prepared by Microwave method using ethylene glycol solution. The nano-BiOBr photocatalysts were characterized and analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-visible diffuse reflectance spectroscopy (UV-Vis DRS), and the degradation ability of nano-BiOBr photocatalyst to adsorb rhodamine B (RhB) was also explored. The results show that the crystallinity of the nano-BiOBr photocatalyst increases with the increase of the concentration, and increases with increasing growth temperature. Nano-BiOBr microspheres of about two µm were polymerized by different self-assembly methods from nanosheets having a thickness of 10 nm to 15 nm. The concentration and growth temperature have an essential influence on the band gap of the nano-BiOBr photocatalyst. The degradation efficiency of photocatalyst decreases with the increase of concentration, increased with the increase in growth temperature. (e) photocatalyst showed the highest photocatalytic activity for RhB.