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Russian Journal of Physical Chemistry A

, Volume 92, Issue 5, pp 984–991 | Cite as

Template-Free Solvothermal Synthesis of Flower-Like BiOBr Microspheres in Ethanol Medium for Photocatalytic Applications

  • Shaoming Hong
  • Huijun Ren
  • Yanfeng Fang
  • Yingping Huang
  • Ruiping Li
Physical Chemistry of Nanoclusters and Nanomaterials
First Online:
Received:
  • 22 Downloads

Abstract

Three-dimensionally (3D) BiOBr microflowers were prepared by a simple solvothermal method, employing Bi(NO3)3 · 5H2O and NaBr as starting reagents in ethanol. The structural, light absorption and morphological properties of as-prepared BiOBr microspheres were determined by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV–Vis diffuse reflectance spectroscopy (DRS), etc. The results showed that ethanol acted not only as a solvent but also as a template in 3D BiOBr preparation. The BiOBr microspheres exhibited superior photocatalytic activity compared with 2D BiOBr nanosheets, far exceeding that of TiO2 (Degussa, P25). It was found that both superoxide radical (O2•-) and holes (h+) played a key role in the degradation of RhB by BiOBr microflowers.

Keywords

solvothermal method BiOBr microflowers ethanol solvent photocatalysis RhB 
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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.College of Hydraulic and Environmental EngineeringChina Three Gorges UniversityYichangChina
  2. 2.Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of EducationChina Three Gorges UniversityYichangChina

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