影像科学与光化学 ›› 2004, Vol. 22 ›› Issue (1): 61-65.DOI: 10.7517/j.issn.1674-0475.2004.01.61

• 应用与发展 • 上一篇    下一篇

在空气中杀菌灯产生臭氧及其催化分解的研究

王晓辉, 张敏, 金振声, 杨建军, 张治军   

  1. 河南大学, 特种功能材料重点实验室, 开封, 475001
  • 收稿日期:2003-01-14 修回日期:2003-09-08 出版日期:2004-01-23 发布日期:2004-01-23
  • 通讯作者: 金振声,张治军

STUDY OF O3 GENERATION UNDER BACTERICIDAL LAMP ILLUMINATION AND ITS CATALYTIC DECOMPOSITION IN AIR

WANG Xiao-hui, ZHANG Min, JIN Zhen-sheng, YANG Jian-jun, ZHANG Zhi-jun   

  1. Lab of Special Functional Materials, Henan University, Kaifeng 475001, P.R.China
  • Received:2003-01-14 Revised:2003-09-08 Online:2004-01-23 Published:2004-01-23

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摘要： 用流动型反应装置,对8W杀菌灯(主波长λ=253.7nm)辐照空气时产生的臭氧进行了研究.发现在一定条件下当空气与杀菌灯接触大约7s时,就有超出0.33μg/L的臭氧产生.随着空气流速的减小,产生的臭氧的量随之变大.采用臭氧分解催化剂对臭氧的消除进行了研究,当体积空速小于1.1×105h-1时,臭氧可以降解到安全范围.

关键词: 臭氧, 杀菌灯, 臭氧分解催化剂

Abstract: In air,the generation of O3 under bactericidal lamp illumination was studied with a flow-type reactor at room temperature.The results show the concentration of ozone generated is go beyond 0.33 μg/L (allowable concentration) when the contact time for 8 W bactericidal lamp was about more than 7 s,and the ozone concentration increases with the decreasing air flow rate.The catalytic decomposition of ozone was also studied with the use of carbon-supported MnO2-Fe2O3 catalyst.The results show ozone can be decomposed to below 0.28 μg/L when the volume space velocity is less than 1.1×105 h-1.

Key words: ozone, bactericidal lamp, ozone decomposition catalyst

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