Carbon dioxide adsorption by modified carbon nanotubes
Tóm tắt
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 °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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Tài liệu tham khảo
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