| Absorption and Photocatalytic Degradation of Machine Oil by Exfoliated Graphite-Supported Nanometer TiO2 Material |
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| 作者姓名： | CAO Hong MA Enbao WANG Xuehua CHEN Jiazang BIN Xiaobei |
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| 作者单位： | [1]School of Materials Science ＆ Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430074 [2]State Key Laboratory of Green Chemistry Synthetic Technology, College of Chemical Engineering ＆ Materials Science, Zhejiang University of Technology, Han |
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| 基金项目： | Hereon, we wish to thank the 0utstanding Young and Middle-aged Teacher Project of the Education Department of Hubei （Grant No. 2003B001）, and Miss Li Lei for finishing all of infrared spectrum test. |
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| 摘 要： | By loading nanometer anatase onto exfoliated graphite with the sol-gel method, exfoliated graphite-TiO2 composite （EG-TiO2） can be prepared, which can adsorb oil and can also degrade oil. In a technologic condition for preparing EG-TiO2, the impregnated number of times is the most important factor to influence oil-adsorbing capability, that is, when the impregnated number of times increases, the amount of saturation-adsorbed oil decreases. The study of EG-TiO2 photocatalytic degradation of machine oil based on the weight-loss method and infrared spectrum method indicates that EG-TiO2 has obvious effect of photocatalytic degradation for machine oil. Its performance is superior to pure nanometer TiO2 powder because nanometer TiO2 in EG-TiO2 has three-dimension laminar structure and comparatively high adsorption capability.
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| 关 键 词： | 石墨 二氧化钛 光催化作用 降解作用 |
| 收稿时间： | 2006-01-11 |
| 修稿时间： | 2006-02-17 |
Absorption and Photocatalytic Degradation of Machine Oil by Exfoliated Graphite-Supported Nanometer TiO2 Material |
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| Authors: | CAO;Hong;MA;Enbao;WANG;Xuehua;CHEN;Jiazang;BIN;Xiaobei |
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| Abstract: | By loading nanometer anatase onto exfoliated graphite with the sol-gel method, exfoliated graphite-TiO2 composite (EG-TiO2) can be prepared, which can adsorb oil and can also degrade oil. In a technologic condition for preparing EG-TiO2, the impregnated number of times is the most important factor to influence oil-adsorbing capability, that is, when the impregnated number of times increases, the amount of saturation-adsorbed oil decreases. The study of EG-TiO2 photocatalytic degradation of machine oil based on the weight-loss method and infrared spectrum method indicates that EG-TiO2 has obvious effect of photocatalytic degradation for machine oil. Its performance is superior to pure nanometer TiO2 powder because nanometer TiO2 in EG-TiO2 has three-dimension laminar structure and comparatively high adsorption capability. |
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| Keywords: | exfoliated graphite nanometer TiO2 photocatalysis degradation machine oil |
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