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›› 2012, Vol. 12 ›› Issue (4): 696-701.

• 材料工程专栏 • 上一篇    下一篇

Cu掺杂TiO2光催化降解室内甲醛气体的实验研究

张浩 刘秀玉 朱庆明 丁厚成   

  1. 安徽工业大学建筑工程学院 安徽工业大学建筑工程学院 安徽工业大学建筑工程学院 安徽工业大学建筑工程学院
  • 收稿日期:2012-04-18 修回日期:2012-06-04 出版日期:2012-08-20 发布日期:2012-08-20
  • 通讯作者: 张浩

Experimental Study on Photocatalytic Degradation of Indoor Formaldehyde Gas over Copper-doped Titania

ZHANG Hao LIU Xiu-yu ZHU Qing-ming DING Hou-cheng   

  1. School of Civil Engineering and Architecture, Anhui University of Technology School of Civil Engineering and Architecture, Anhui University of Technology School of Civil Engineering and Architecture, Anhui University of Technology School of Civil Engineering and Architecture, Anhui University of Technology
  • Received:2012-04-18 Revised:2012-06-04 Online:2012-08-20 Published:2012-08-20
  • Contact: ZHANG Hao

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被引次数

29

摘要： 采用溶胶-凝胶法合成了掺杂Cu的TiO2光催化剂，用环境测试舱模拟可见光下的室内环境，光催化降解其中的甲醛气体，最佳掺杂Cu量为2.0%(mol). Cu-TiO2光催化剂用量为1.5~2.5 g/m3、甲醛气体初始浓度为1 mg/m3时，降解环境测试舱内甲醛气体的效果最佳. 与商用P25光催化剂相比，Cu-TiO2光催化剂在可见光区域降解甲醛的效果好，且重复多次使用后仍保持较好的光催化活性.

关键词: Cu-TiO2, 光催化, 甲醛气体, 铜, 室内空气

Abstract: TiO2 nanocrystallite photocatalyst doped with Cu by sol-gel method was prepared, the optimal content of Cu in TiO2 was 2.0%(mol). Its photocatalytic activity was determined, and removal effect of formaldehyde investigated by the photocatalytic decomposition of formaldehyde gas in the environmental chamber using a visible lamp. When the dosage of Cu-TiO2 photocatalyst was at 1.5~2.5 g/m3, and initial concentration of formaldehyde gas 1 mg/m3, the degradation of formaldehyde gas in the environmental chamber had the best effect. Compared with a commercially available P25 photocatalyst, the Cu-TiO2 photocatalyst in the visible range had good degradation of formaldehyde, and after repeated use, the photocatalyst was still kept in its good photocatalytic activity.

Key words: Cu-TiO2, photocatalysis, formaldehyde gas, copper, indoor air

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