| 掺杂改性纳米TiO_2降解挥发性污染物及产物研究 |
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| 引用本文： | 赵鹏,刘杰民,范慧俐,韦祎,何荣亮,曹文斌. 掺杂改性纳米TiO_2降解挥发性污染物及产物研究[J]. 感光科学与光化学, 2009, 0(5) |
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| 作者姓名： | 赵鹏 刘杰民 范慧俐 韦祎 何荣亮 曹文斌 |
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| 作者单位： | 北京科技大学应用科学学院;北京科技大学材料科学学院; |
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| 基金项目： | 国家自然科学基金(20877008,20407003) |
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| 摘 要： | 本文系统研究了水热法制备的铁掺杂纳米Ti O2和氮掺杂纳米Ti O2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Ti O2和氮掺杂Ti O2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.
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| 关 键 词： | 掺杂纳米TiO2 可见光 降解效率 挥发性有机物 |
The Degradation Efficiency and Degradation Products of Volatile Organic Compounds Using Doped-TiO_2 Photocatalyst |
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| ZHAO Peng,LIU Jie-min,FAN Hui-li,WEI Yi,HE Rong-liang,CAO Wen-bin. The Degradation Efficiency and Degradation Products of Volatile Organic Compounds Using Doped-TiO_2 Photocatalyst[J]. Photographic Science and Photochemistry, 2009, 0(5) |
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| Authors: | ZHAO Peng LIU Jie-min FAN Hui-li WEI Yi HE Rong-liang CAO Wen-bin |
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| Affiliation: | 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;P.R.China |
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| 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 pro... |
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| Keywords: | doped nano-TiO2 visible light degradation ratio volatile organic compounds |
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