Synthesis and characterization of BiOI/montmorillonite composites with high visible light photocatalytic activity

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• 作者：Chao Liu ; Jizhong Wang ; Xiaojing Wang ; Fatang Li…
• 关键词：BiOI/montmorillonite composite ; synthesis and characterization ; photocatalytic activity
• 刊名：Russian Journal of Physical Chemistry A, Focus on Chemistry
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：89
• 期：12
• 页码：2313-2319
• 全文大小：702 KB
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• 作者单位：Chao Liu (1)
  Jizhong Wang (1)
  Xiaojing Wang (2)
  Fatang Li (2)
  Lei Zhang (1)
  Yue Chen (1)
  
  1. College of Gemmology and Material Technics, Shijiazhuang University of Economics, Shijiazhuang, 050031, China
  2. College of Sciences, Hebei University of Science and Technology, Shijiazhuang, 050018, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1531-863X

文摘

BiOI/montmorillonite composite photocatalysts are synthesized by a facile room temperature method using Bi(NO<sub>3sub>)<sub>3sub>, KI and montmorillonite (MMT) clay as precursors, and characterized by X-ray diffraction (XRD), UV–Vis diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM), and nitrogen adsorption-desorption measurements. The facile synthesis method avoids high temperature treatment, and is based on cheap precursors. The prepared Bi-M-x composites possess a hierarchically nanoplates structure and are composed of BiOI and MMT phases. The degradation rate of the methylene blue reached up to about 95% after 45 min whereas that for the pure BiOI was only 75%. The high photocatalytic Bi-M-x composites would have a potential application in environmental purification owing to its low cost and easy synthesis.