| 氧化处理ACF对VOC的吸附及其等温线的拟合 |
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| 引用本文： | 黄正宏,康飞宇,梁开明,杨骏兵.氧化处理ACF对VOC的吸附及其等温线的拟合[J].清华大学学报(自然科学版),2002,42(10):1289-1292. |
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| 作者姓名： | 黄正宏 康飞宇 梁开明 杨骏兵 |
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| 作者单位： | 清华大学,材料科学与工程系,北京,100084 |
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| 摘 要： | 空气中挥发性有机化合物 (VOC)严重危害人体的身体健康 ,因而研究 VOC的去除具有重要意义。用重量法研究了不同比表面积的活性炭纤维 (ACF)氧化处理后对低体积分数 VOC(非极性苯和极性丁酮 )的吸附 ,并用 Fre-undlich方程和 Dubinin-Radushkevich(DR)方程对吸附等温线进行了拟合。结果表明 :氧化处理能提高活性炭纤维的表面含氧量并能改变其孔结构 ,进而影响对 VOC的吸附 ;Freundlich方程和 DR方程能很好地拟合吸附等温线
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| 关 键 词： | 活性炭纤维(ACF) 氧化处理 挥发性有机化合物(VOC) 气相吸附 |
| 文章编号： | 1000-0054(2002)10-1289-04 |
| 修稿时间： | 2001年8月20日 |
Experimental and modeled results describing adsorption of trace VOCs onto oxidized ACF |
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| HUANG Zhenghong,KANG Feiyu,LIANG Kaiming,YANG Junbing.Experimental and modeled results describing adsorption of trace VOCs onto oxidized ACF[J].Journal of Tsinghua University(Science and Technology),2002,42(10):1289-1292. |
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| Authors: | HUANG Zhenghong KANG Feiyu LIANG Kaiming YANG Junbing |
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| Abstract: | Volatile organic compounds (VOC) are common airborne pollutants that endanger human health. The present work analyzed the adsorption of low concentration volatile organic compounds such as nonpolar benzene and polar methy ethyl ketone onto oxidized viscose rayon based activated carbon fibers (ACF). The Freundlich equation and the Dubinin Radushkevich (DR) equation were used to fit the measured adsorption isotherms. The results show that oxidation treatment increases the surface oxygen amount and modifies the ACF pore structure, resulting in different adsorption characteristics for the VOC. The model results agree with the measured data. |
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| Keywords: | activated carbon fiber (ACF) oxidation treatment volatile organic compounds (VOC) gas adsorption |
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