| C2H4的微波场助气相光催化氧化 |
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| 引用本文： | 郑宜 李旦振 李旦振,付贤智.C2H4的微波场助气相光催化氧化[J].高等学校化学学报,2001,22(3):443-445. |
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| 作者姓名： | 郑宜 李旦振 李旦振 付贤智 |
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| 作者单位： | 郑宜（福州大学光催化研究所）;李旦振（福州大学光催化研究所）;李旦振（福州大学电子系, 福州 350002）;付贤智（福州大学光催化研究所） |
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| 基金项目： | 国家自然科学基金(批准号：
29843003)和福建省自然科学基金(B9820001)资助. |
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| 摘 要： | 用溶胶-凝胶法制备了多孔性TiO
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| 关 键 词： | 纳米二氧化钛 光催化氧化 微波 乙烯 |
| 文章编号： | 0251-0790(2001)03-0443-03 |
| 修稿时间： | 2000年3月30日 |
Microwave-assisted
Heterogeneous Photocatalytic Oxidation of Ethylene |
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| ZHENG Yi.Microwave-assisted
Heterogeneous Photocatalytic Oxidation of Ethylene[J].Chemical Research In Chinese Universities,2001,22(3):443-445. |
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| Authors: | ZHENG Yi |
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| Abstract: | Porous TiO 2 and SO 2- 4/TiO 2 catalysts were prepared by sol gel method and charaterized by XRD, N 2 sorption analysis applying BET method, and microwave absorption spectrum. Photocatalytic oxidation of C 2H 4 in air stream was studied. The results showed that the photocatalytic activity of both SO 2- 4/TiO 2 and TiO 2 catalysts was obviously increased under the reaction condition of ultraviolet combined with microwave. The conversions of ethylene over TiO 2 and SO 2- 4/TiO 2 were enhanced from 20% and 41%(UV) to 27% and 62%(UV+MW), respectively. The effect of MW on SO 2- 4/TiO 2 catalyst was more notable. The improvement on photocatalytic activity was attributed to the polarization effect of the highly defected catalysts in microwave field, which increased the transition probability of photon generated electrons and decreased the electron hole recombination on semiconductor surface. |
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| Keywords: | Nano titania Photocatalytic oxidation Microwave Ethylene |
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