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富勒烯烟炱的吸附性及其在大气挥发性有机物分析中的应用
Adsorption Characteristics of Fullerene-extracted Soots and Its Application for Collecting Volatile Organic Compounds in Ambient Air
【摘要】 研究了富勒烯烟炱对挥发性有机物 (VOCs)的吸附作用 . 1 7种 VOCs气体在烟炱上的比保留体积 V2 0g为 1 7.4~ 2 63 4L/g.富勒烯烟炱充填的吸附管对 VOCs气体的吸附 -热脱附回收率在 40 .8%~ 1 1 7%之间 ,大部分为 (1 0 0± 2 0 ) % .结果表明 ,富勒烯烟炱能够用于吸收和富集大气中痕量的 VOCs
【Abstract】 Fullerene-extracted soots which are the by-product of producing fullerenes(C60/C70) can adsorb organic vapors efficiently. Breakthrough volumes(maximum sample volumes, Vmax)and specific retention volumes(20 ℃)of 17 VOCs(volatile organic compounds)are measured. The recoveries of adsorption/thermal desorption of Fullerene-extracted soots adsorbent tubes ranged from 40.8% to 117%, most of which are (100±20)%. Fullerene-extracted soots is cheap and can be used in environmental analysis for trapping and enriching traces of VOCs in ambient air.
【Key words】 Volatile organic compounds(VOCs); Adsorbent; Fullerene-extracted soots;
- 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,2000年01期
- 【分类号】TQ424
- 【被引频次】6
- 【下载频次】153