Carbon dioxide adsorption by modified carbon nanotubes

被引：15
作者：
Omidfar, Narges [1 ]
Mohamadalizadeh, Ali [2 ,3 ]
Mousavi, Seyed Hamed [1 ]
机构：
[1] Univ Tehran, Fac Caspian, Coll Engn, Tehran 113654563, Iran
[2] Res Inst Petr Ind, Gas Res Div, Tehran 146651998, Iran
[3] Univ Western Ontario, Dept Chem & Biochem Engn, London, ON, Canada
来源：
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING | 2015年 / 10卷 / 06期
关键词：
flue gas; CO2; adsorption; carbon nanotube; functionalization; amino functional groups; CO2; ADSORPTION; CAPTURE; BUNDLES;
D O I：
10.1002/apj.1925
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study the CO2 adsorption of three different diameters of multi-walled carbon nanotubes (MWCNT) and single-walled carbon nanotube (SWCNT) was investigated for a mixture of CO2/Ar at a temperature of 70 degrees C and atmospheric pressure. The largest diameter of MWCNT showed the highest CO2 uptake of 65.2 mg CO2 adsorbed per g adsorbent. One of the MWCNTs were modified with urea (CH4N2O) under two different loading durations with the aim of improving adsorption capacity. After such a functionalization, the CO2 uptake increased from 53.9 to 64.1 mg CO2 adsorbed per g adsorbent after 4 h loading duration. These findings indicate considerable potential of functionalized carbon nanotubes in comparison with other silica and carbon adsorbents. (C) 2015 Curtin University of Technology and John Wiley & Sons, Ltd.
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收藏
页码：885 / 892
页数：8
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