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Chemcial Industry and Engineering 2008, Vol. 25 Issue (2) :104-106    DOI:
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Preparation and Characterization of Magnetic Photocatalyst of TiO_2/SiO_2/Fe_3O_4
SUN Ming~1,TAN Xin~(1,2),ZHAO Lin~(1,2)(1.School of Environmental Science and Technology,Tianjin University,Tianjin 300072,China;2.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)
(1,2),ZHAO Lin~(1,2)(1.School of Environmental Science and Technology,Tianjin University,Tianjin 300072,China;2.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

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Abstract Using micron-sized Fe_3O_4 as supporter,TiO_2/SiO_2/Fe_3O_4 coated particles were prepared by an improved sol-gel process.Their magnetic property,phase structure and morphology were characterized by means of VSM,XRD,and TEM.The photocatalytic activity of TiO_2/SiO_2/Fe_3O_4 was investigated by the photoreduction of Cr~(6+) aqueous solution.The results indicated that the TiO_2/SiO_2/Fe_3O_4 two-coated particles were composed of SiO_2 mesosphere and TiO_2 crust,and the thus prepared TiO_2/SiO_2/Fe_3O_4 showed better magnetic properties and higher photocatalytic activity than TiO_2/Fe_3O_4 without SiO_2 coating.
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Received 2008-03-15; published 2008-03-15
Cite this article:   
SUN Ming~1,TAN Xin~.Preparation and Characterization of Magnetic Photocatalyst of TiO_2/SiO_2/Fe_3O_4[J]  Chemcial Industry and Engineering, 2008,V25(2): 104-106
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