J4 ›› 2009, Vol. 39 ›› Issue (5): 913-917.

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Study on Preparation and Properties of Copper-Doped TiO2/Bentonite Composite Photocatalyst

ZHANG Dong-li,SHA Li,XU Ze,ZHAO Xiao-yuan   

  1. College of Materials Science and Engineering, Jilin University, Changchun 130026,China
  • Received:2009-05-04 Online:2009-09-26 Published:2009-09-26

Abstract:

Using natural sodium bentonite as vector, the composite TiO2/bentonite photocatalyst doped with copper has been prepared by hydrolysis of titanium tetrachloride. The effect of Cu2+ on modification TiO2/sodiun bentonite with different content of Cu2+ and its photocatalysis activity under different lighting conditions were studied. Experimental results were characterized by UV-Vis，XRD，IR，TG-DTA etc.The experimental results showed that the doping of Cu2+ can heighten the photocatalysis activity of TiO2/sodiun bentonite. The photocatalysis effect will be highest under the condition of UV with the 10.9% Cu2+ doping content of cation exchange with natural sodium bentonite,and sunshine with the 16.4%Cu2+ doping content of cation exchange with natural sodium bentonite respectively.The ideal photocatalysis effect on the composite TiO2/bentonite photocatalyst can be obtained under the  heat treating temperature of 500 ℃.

Key words: TiO2, photocatalytic, copper-doped

CLC Number: 

  • O69
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