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Preparation and Properties of Iron Doping Titania/Bentonite Composite Photocatalyst Material

TAN Hui1, LI Dian-chao1, YANG Dian-fan2,WANG Ying-wei2   

  1. 1.College of Earth Sciences,Jilin University,Changchun 130061,China；2.College of Material Science and Engineering,Jilin University,Changchun 130026,China
  • Received:2006-06-26 Revised:1900-01-01 Online:2007-01-26 Published:2007-01-26
  • Contact: TAN Hui

Abstract: Iron doping TiO2/bentonite composite photocatalyst were prepared by sol-gel method. XRD and IR analysis were used to detect these samples. The photocatalytic properties of these samples were detected by decoloration rate of methyl orange solution and COD. It indicated that the photocatalytic properties of this kind of photocatalyst were prominent. The decoloration rate of 20 mg/L methyl orange solution at pH=4 under visible light could reach to 95% with COD more than 85%.Moreover,this catalyst could be reused several times after sintering at 200℃ for 2.5 h.

Key words: composite photocatalyst, bentonite, decoloration rate, COD

CLC Number: 

  • P619.21
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