| 超临界乙醇流体制取活性炭-TiO2光催化剂复合材料的研究 |
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| 引用本文： | 黄彪. 超临界乙醇流体制取活性炭-TiO2光催化剂复合材料的研究[J]. 环境科学学报, 2002, 22(5): 641-646 |
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| 作者姓名： | 黄彪 |
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| 作者单位： | 福建农林大学材料工程学院,南平,353001 |
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| 基金项目： | 国家留学基金 (编号 :988350 4 2 ) |
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| 摘 要： | 研究表明：在超临界乙醇流体介质下钛酸异丙酯能有效地分解成具光催化活性的锐钛矿型TiO2粒子，同时产生的TiO2粒子可与活性炭融合成一体，形成的活性炭－TiO2光催化剂复合材料具很好的光催化活性与吸附作用，而且具有的协同效应优于活性炭与TiO2样品的物理混合形式。
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| 关 键 词： | 超临界乙醇 活性炭 TiO2 光催化剂 甲醛 复合材料 吸附 协同效应 二氧化钛 |
| 文章编号： | 0253-2468(2002)-05-0641-06 |
| 收稿时间： | 2001-09-11 |
| 修稿时间： | 2001-09-11 |
Characteristics of photo-catalytic TiO2-activated carbon composites prepared by supercritical ethanol |
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| HUANG Biao. Characteristics of photo-catalytic TiO2-activated carbon composites prepared by supercritical ethanol[J]. Acta Scientiae Circumstantiae, 2002, 22(5): 641-646 |
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| Authors: | HUANG Biao |
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| Affiliation: | School of Material Engineering, Fujian Agriculture and Forestry University, Fujian Nanping 353001 |
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| Abstract: | Photo catalytic TiO 2 activated carbon composites were prepared from tetraisopropyl titanate (TPT) soaked activated carbon (AC) in supercritical ethanol. In the composites, activated carbon is an adsorbent and the anatase form TiO 2 is a photo catalyst.As a result, the supercritically treated TiO 2 activated carbon composites (Sc TiO 2 AC ) had a higher decomposing ability, compared with the performance of non composite composed of a simple physical mixture of activated carbon and TiO 2 granules. This indicates that the supercritical treatment can be effectively used to prepare the photo catalytic composites possessing high synergetic effect of adsorption and photo catalytic decomposition of formaldehyde for environmental cleaning. |
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| Keywords: | formaldehyde supercritical ethanol TiO 2 activated carbon composites photo catalytic activity adsorptivity synergetic effect |
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