Carbon dioxide adsorption by modified carbon nanotubes

Asia-Pacific Journal of Chemical Engineering - Tập 10 Số 6 - Trang 885-892 - 2015
Narges Omidfar1, Ali Mohamadalizadeh2,3, Seyed Hamed Mousavi1
1Faculty of Caspian, College of Engineering University of Tehran 11365‐4563 Tehran Iran
2Department of Chemical and Biochemical Engineering; Western University (UWO); N6A 5B9 London Ontario Canada
3Gas Research Division Research Institute of Petroleum Industry 14665‐1998 Tehran Iran

Tóm tắt

AbstractIn 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 °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. © 2015 Curtin University of Technology and John Wiley & Sons, Ltd.

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Thông tin xuất bản

Asia-Pacific Journal of Chemical Engineering

Tập 10 Số 6

885-892

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