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

• 地质工程与环境工程 • 上一篇    下一篇

掺铜TiO2/膨润土光催化剂的制备及其光催化性能研究

张东丽,沙莉,徐泽,赵晓媛   

  1. 吉林大学 |材料科学与工程学院|长春 130026
  • 收稿日期:2009-05-04 出版日期:2009-09-26 发布日期:2009-09-26
  • 通讯作者: 张东丽(1960-),女,山东齐河人,工程师,主要从 事矿物材料方面的研究 E-mail:zhangdl@jlu.edu.cn
  • 作者简介:张东丽(1960-)|女|山东齐河人|工程师|主要从 事矿物材料方面的研究|E-mail:zhangdl@jlu.edu.cn
  • 基金资助:

    国家自然科学基金项目(50574043,40772028)

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

摘要:

以天然钠基膨润土为载体,利用四氯化钛水解法制备了掺铜TiO2/膨润土复合光催化剂;比较了不同量Cu2+对TiO2/钠基膨润土的修饰作用及不同光照条件对光催化性能的影响。采用分光光度计、XRD、IR及TG-DTA等测试手段对试验结果进行表征。结果表明,铜的掺入对TiO2/膨润土光催化活性有显著提高:当掺铜量为原土阳离子交换量的10.9%时,紫外光下催化效果最好;16.4%时太阳光下催化效果最好。复合后样品热处理温度为500 ℃,获得较理想的光催化活性。

关键词: 二氧化钛, 光催化, 掺铜

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

中图分类号: 

  • O69
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