Additive-free solvothermal preparation, characterization, and photocatalytic activity of 3D butterfly-like BiVO4

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• 作者：Xinjun Wang (1)
  Huanli Liu (1)
  Jinrui Wang (1)
  Linling Chang (1)
  Ningning Song (1)
  Zhenzhen Yan (1)
  Xiaoli Wan (1)
  
  1. School of Chemistry and Chemical Engineering ; Henan Normal University ; Xinxiang ; 453007 ; China
  
• 关键词：BiVO4 ; Visible ; light ; driven photocatalysts ; Solvothermal method ; Methylene blue (MB)
• 刊名：Research on Chemical Intermediates
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：41
• 期：4
• 页码：2465-2477
• 全文大小：1,701 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Catalysis
  Physical Chemistry
  Inorganic Chemistry
  
• 出版者：Springer Netherlands
• ISSN：1568-5675

文摘

Three-dimensional butterfly-like BiVO4 was successfully synthesized by a simple solvothermal method at a proper volume ratio (1:4) of EG/H2O mixed solution. It was found that ethylene glycol (EG) had an obvious influence on the morphologies of the final products. BiVO4 with different morphologies could be obtained by simply adjusting the volume ratio of the EG/H2O. The crystal structures, morphologies, and photophysical properties of the products were well characterized. The photocatalytic activities of the samples were evaluated by decolorization of methylene blue (MB) under simulated sunlight irradiation. The results demonstrated that BiVO4 with butterfly-like morphology was better than that of BiVO4-1, BiVO4-3 and BiVO4-4 for photodegradation of MB. The monoclinic butterfly-like BiVO4-2 possessed bigger specific surface area, lower band gap energy, and interesting morphology, resulting in the highest photocatalytic activity under simulated sunlight irradiation.