Influence of Amine Grafting on Carbon Dioxide Adsorption Behaviors of Activated Carbons

In this work, the amine grafting treated activated carbons were studied for carbon dioxide adsorbent. The surfaces of activated carbon were functionalized by 3-chloropropyltrimethoxysilane, which was subsequently grafted with amine compounds tris-(2-aminoethyl)amine and tri-ethylenetetramine and subjected to comparison. The surface functional groups of the amine grafted activated carbons were characterized using XPS. The textural properties of the amine grafted activated carbons were analyzed by N2/77 K isotherms. Carbon dioxide adsorption behaviors of the amine grafted activated carbons were examined via the amounts of carbon dioxide adsorption at 298 K and 1.0 atm. From the results, tris-(2-aminoethyl)amine grafted activated carbons showed 43.8 cm 3 /g of carbon dioxide adsorption while non-treated activated carbons and triethylenetetramine grafted activated carbons showed less carbon dioxide adsorption. These results were thought to be due to the presence of isolated amine groups in the amine compounds. Tris-(2-aminoethyl)amine grafted activated carbons have basic features that result in the enhancement of adsorption capacity of the carbon dioxide molecules, which have an acidic feature.

[1]  S. Huh,et al.  Bimodal Mesoporous Carbons for CO 2 Sorption Application , 2010 .

[2]  T. Yashima,et al.  Adsorption of Carbon Dioxide on Amine Modified SBA-15 in the Presence of Water Vapor , 2004 .

[3]  J. I. Paredes,et al.  Surface characteristics of activated carbons obtained by pyrolysis of plasma pretreated PET. , 2006, The journal of physical chemistry. B.

[4]  T. El-Nabarawy,et al.  Preparation and Characterization of KOH-Activated Carbons Developed from Petroleum Coke , 2009 .

[5]  Soojin Park,et al.  Effect of Heat Treatment on CO2 Adsorption of Ammonized Graphite Nanofibers , 2010 .

[6]  E. Teller,et al.  ADSORPTION OF GASES IN MULTIMOLECULAR LAYERS , 1938 .

[7]  C. G. Schull.  The Determination of Pore Size Distribution from Gas Adsorption Data , 1948 .

[8]  S. Satyapal,et al.  Performance and Properties of a Solid Amine Sorbent for Carbon Dioxide Removal in Space Life Support Applications , 2001 .

[9]  J. Andresen,et al.  Preparation and characterization of novel CO2 “molecular basket” adsorbents based on polymer-modified mesoporous molecular sieve MCM-41 , 2003 .

[10]  Colin E. Snape,et al.  CO2 capture using some fly ash-derived carbon materials , 2005 .

[11]  W. Daud,et al.  Adsorption characteristics of methyl mercaptan, dimethyl disulfide, and trimethylamine on coconut-based activated carbons modified with acid and base , 2010 .

[12]  J. Hsu.  Interfacial forces and fields : theory and applications , 1999 .

[13]  Byung-Joo Kim,et al.  Copper oxide-decorated porous carbons for carbon dioxide adsorption behaviors. , 2010, Journal of colloid and interface science.

[14]  V. Zeleňák,et al.  Amine-modified SBA-12 mesoporous silica for carbon dioxide capture: Effect of amine basicity on sorption properties , 2008 .

[15]  Lin Sun,et al.  Promoting the CO2 adsorption in the amine-containing SBA-15 by hydroxyl group , 2008 .

[16]  Won-Jin Son,et al.  Adsorptive removal of carbon dioxide using polyethyleneimine-loaded mesoporous silica materials , 2008 .

[17]  Hsunling Bai,et al.  Comparative Study of CO2 Capture by Carbon Nanotubes, Activated Carbons, and Zeolites , 2008 .

[18]  Youssef Belmabkhout,et al.  Stabilization of amine-containing CO(2) adsorbents: dramatic effect of water vapor. , 2010, Journal of the American Chemical Society.

[19]  Costas Tsouris,et al.  Separation of CO2 from Flue Gas: A Review , 2005 .

[20]  Covadonga Pevida,et al.  CO2 capture by adsorption with nitrogen enriched carbons , 2007 .

[21]  Jun Hu,et al.  CO2 Capture by the Amine-modified Mesoporous Materials , 2007 .

[22]  E. Barrett,et al.  (CONTRIBUTION FROM THE MULTIPLE FELLOWSHIP OF BAUGH AND SONS COMPANY, MELLOX INSTITUTE) The Determination of Pore Volume and Area Distributions in Porous Substances. I. Computations from Nitrogen Isotherms , 1951 .

[23]  Mohammadhosein Safari,et al.  Adsorption of carbon dioxide using impregnated activated carbon promoted by Zinc , 2009 .