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National Chung Hsing University Institutional Repository - NCHUIR > 工學院 > 環境工程學系所 > 依資料類型分類 > 期刊論文 >  Adsorption, Desorption, and Thermodynamic Studies of CO2 with High-Amine-Loaded Multiwalled Carbon Nanotubes

Please use this identifier to cite or link to this item: http://nchuir.lib.nchu.edu.tw/handle/309270000/126120

標題: Adsorption, Desorption, and Thermodynamic Studies of CO2 with High-Amine-Loaded Multiwalled Carbon Nanotubes
作者: Su, Fengsheng;Lu, Chungsying;Chen, Hung-Shih
Contributors: 國立中興大學環境工程學系
National Chung Hsing University,Department of Environmenral Engineering
Miao-zhen Luo
日期: 2011
Issue Date: 2012-10-19 16:06:12 (UTC+8)
Publisher: American Chemical Society
摘要: Commercially available multiwalled carbon nanotubes (CNTs) were functionalized with a high mass load of 3-aminopropyltriethoxysilane (APTS) to study their behaviors in the cyclic CO(2) adsorption as well as the associated thermodynamic properties. The breakthrough curve showed a fast kinetics of CO(2) adsorption resulting in percentage ratios of working capacity to equilibrium capacity greater than 80%. The adsorption capacity of CNT(APTS) was significantly influenced by the presence of water vapor and reached a maximum of 2.45 mmol/g at a water vapor of 2.2%. The adsorption capacities and the physicochemical properties of CNT(APTS) were preserved through 100 adsorption-desorption cycles displaying the stability of CNT(APTS) during a prolonged cyclic operation. The heat input required to regenerate spent CNT(APTS) was determined, and the result suggests that adsorption process with solid CNT(APTS) is possibly a promising CO(2) capture technology.
Relation: Langmuir, Volume 27, Issue 13, Page(s) 8090-8098.
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