Enhanced Photocatalytic Activity of BiOCl Hybridized with g-C3N4

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• 作者：Yifan Yang ; Feng Zhou ; Su Zhan ; Yujun Liu…
• 关键词：BiOCl ; g ; C3N4 ; Hybrid photocatalyst ; Heterojunction
• 刊名：Journal of Inorganic and Organometallic Polymers and Materials
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：26
• 期：1
• 页码：91-99
• 全文大小：2,427 KB
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• 作者单位：Yifan Yang (1)
  Feng Zhou (1)
  Su Zhan (1)
  Yujun Liu (1)
  Yanfeng Yin (1)
  
  1. Department of Materials Science and Engineering, Dalian Maritime University, Dalian, 116026, People’s Republic of China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Inorganic Chemistry
  Organic Chemistry
  Polymer Sciences
  
• 出版者：Springer New York
• ISSN：1574-1451

文摘

A g-C₃N₄/bismuth oxychloride (BiOCl) heterojunction was prepared by ultrasonic method. The microstructure, morphology, properties, and photocatalytic activity of the heterojunction were characterized using X-ray diffraction, UV–Vis diffuse reflection spectroscopy, field emission scanning electron microscopy, Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy and electro-chemical experiments. After hybridized with g-C₃N₄, the absorption edge of g-C₃N₄/BiOCl showed a red shift that reached 440 nm, with a band gap (E _g) calculated to be 2.82 eV. Under visible-light irradiation, the hybrid photocatalyst also showed activity for methylene-blue photodegradation that was approximately 6.3 times higher than the activity of pure BiOCl. The mechanism of photocatalytic activity enhancement involved increased separation of electrons and holes between g-C₃N₄ and BiOCl. This work significantly contributed to the improvement in photocatalytic activity of BiOCl. Keywords BiOCl g-C₃N₄ Hybrid photocatalyst Heterojunction