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| 光催化氧化分解空气挥发性有机污染物的研究 | |
| 引用本文： | 吴亚西,陈烈贤. 光催化氧化分解空气挥发性有机污染物的研究[J]. 卫生研究, 2002, 31(5): 384-385 |
| 作者姓名： | 吴亚西 陈烈贤 |
| 作者单位： | 中国预防医学科学院环境卫生监测所,北京,100021 |
| 基金项目： | 卫生部科学基金课题 (No.97- 2 0 4 12 ) |
| 摘 要： | 利用高压汞灯为光源 ,研究了空气中常见的苯、二甲苯、庚烷、甲醇、丙酮、乙醚、甲醛、三氯乙烯和四氯乙烯等挥发性有机污染物在二氧化钛 (TiO2 )催化下的光解反应 ,除甲醛外 ,在 5min内分解率可达 80 %以上。并讨论了TiO2 种类和用量及紫外线强度等因素对分解反应效率的影响 |
| 关 键 词： | 挥发性有机污染物 二氧化钛 光催化氧化 |
| 文章编号： | 1000-8020(2002)05-0384-02 |
| 修稿时间： | 2002-02-12 |
Photocatalytic oxidation of airborne VOCs on TiO2 |
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| Wu Yaxi,Chen Liexian Institute of Environmental Health Monitoring,Chinese Academy of Preventive Medicine,Beijing ,China. Photocatalytic oxidation of airborne VOCs on TiO2[J]. Journal of hygiene research, 2002, 31(5): 384-385 | |
| Authors: | Wu Yaxi Chen Liexian Institute of Environmental Health Monitoring Chinese Academy of Preventive Medicine Beijing China |
| Affiliation: | Institute of Environmental Health Monitoring, Chinese Academy of Preventive Medicine, Beijing 100021, China. |
| Abstract: | Titanium dioxide(TiO 2)was used to catalyze the photolysis of benzene, xylene, n|heptane,methanol, acetone,ethylether,formaldehyde, trichloroethylene and perchloroethlene in air. The photolysis was carried out with a high pressure mercury lamp.The degradation rate of these VOCs was more than 80 percent in five minuts except formaldehyde. The effects of catalyst amount, different types of TiO 2 catalyst and density of UV on the degradation rate of the VOCs were also studied. |
| Keywords: | VOCs TiO 2 photocatalytic oxidation |
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