影像科学与光化学 ›› 2009, Vol. 27 ›› Issue (5): 367-372.DOI: 10.7517/j.issn.1674-0475.2009.05.367

• 研究论文 • 上一篇    下一篇

掺杂改性纳米TiO2降解挥发性污染物及产物研究

赵鹏1, 刘杰民1, 范慧俐1, 韦祎2, 何荣亮2, 曹文斌2   

  1. 1. 北京科技大学, 应用科学学院, 北京, 100083;
    2. 北京科技大学, 材料科学学院, 北京, 100083
  • 收稿日期:2009-04-15 修回日期:2009-06-04 出版日期:2009-09-23 发布日期:2009-09-23
  • 通讯作者: 刘杰民.
  • 基金资助:
    国家自然科学基金(20877008,20407003)

The Degradation Efficiency and Degradation Products of Volatile Organic Compounds Using Doped-TiO2 Photocatalyst

ZHAO Peng1, LIU Jie-min1, FAN Hui-li1, WEI Yi2, HE Rong-liang2, CAO Wen-bin2   

  1. 1. School of Applied Science, University of Science and Technology Beijing, Beijing 100083, P.R.China;
    2. School of Materials Science and Engineering, University of Science andTechnology Beijing, Beijing 100083, P.R.China
  • Received:2009-04-15 Revised:2009-06-04 Online:2009-09-23 Published:2009-09-23

摘要: 本文系统研究了水热法制备的铁掺杂纳米TiO2和氮掺杂纳米TiO2在可见光照射下对挥发性有机物(volatile organic compounds,VOCs)的降解能力和降解产物.铁掺杂纳米TiO2和氮掺杂TiO2对光的吸收边分别红移到540 nm和580 nm;在可见光下具有良好的催化活性,24 h内对挥发性有机物的降解率达20%—50%,降解后的最终产物可能主要为CO2.

关键词: 掺杂纳米TiO2, 可见光, 降解效率, 挥发性有机物

Abstract: The degradation performance of volatile organic compounds(VOCs) under visible light irradiation by Fe-doped and nitrogen-doped nanocrystalline TiO2 powders prepared by hydrothermal method has been investigated systematically in this article.The absorption spectral edge of Fe-doped and N-doped nano-TiO2 powders have been red-shifted to nearly 540 nm and 580 nm,respectively.Experimental results show that the degradation ratio of VOCs was over 20% to 50% within 24 hours.CO2 was one of the final degradation products.

Key words: doped nano-TiO2, visible light, degradation ratio, volatile organic compounds

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