Preparation and photocatalytic application of high temperature stabilized ZrSiO4@TiO2 hybrid nanostructure

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• 作者：Cheng Peng (1)
  Peiyu Fang (1)
  Zhichao Zeng (1)
  Ming Lü (1)
  Jianqing Wu (1)
  
• 关键词：preparation ; photocatalytic application ; ZrSiO4 ; anatase ; phytic acid
• 刊名：Journal of Wuhan University of Technology--Materials Science Edition
• 出版年：2014
• 出版时间：August 2014
• 年：2014
• 卷：29
• 期：4
• 页码：643-646
• 全文大小：2,101 KB
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• 作者单位：Cheng Peng (1)
  Peiyu Fang (1)
  Zhichao Zeng (1)
  Ming Lü (1)
  Jianqing Wu (1)
  
  1. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China
  
• ISSN：1993-0437

文摘

A new ZrSiO4@TiO2 hybrid nanostructure was prepared by a heterogeneous flocculation method. Phytic acid was introduced to modify the surface charging of the components for hybrid assembly. The obtained powder was coated on ceramic tiles and fired at 900 °C to fabricate photocatalytic ceramic. Experimental results show that anatase TiO2 in the composite powder has high thermal stability until 1 200 °C. ZrSiO4 matrix prevents the mass transfer of anatase TiO2 at high temperature and greatly retards the phase transition of anatase to rutile. Besides, the photocatalytic ceramic shows apparent activities for the degradation of methyl orange under ultra-violet irradiation.