title: Tetraethylenepentamine embedded zeolite A for carbon dioxide adsorption.
abstract: Tetraethylenepentamine (TEPA) embedded zeolite A crystals were synthesized by using TEPA and the preformed zeolite A precursor under the microwave irradiation. The presence of TEPA in zeolite A crystal was confirmed by TG analysis and FTIR, Raman spectra. The CO2 adsorptive behavior of TEPA embedded zeolite A samples was investigated by CO2 isotherms measured at 25 degrees C comparing with zeolite A. The optimum CO2 sorption capacity was found in the case of 7.5% TEPA embedded zeolite A, which showed 3.75 mmol g(-1) where as the zeolite A showed less CO2 adsorption capacity of 2.88 mmol g(-1). The adsorption capacity of TEPA embedded Zeolite A was sustained up to 90% during 4 cycles of temperature swing adsorption (TSA) from 40 degrees C to 140 degrees C, indicating that the TEPA embedded Zeolite A was found to be useful as one of the application to solid amine adsorbent for CO2.
authors.affiliation: Laboratory of Nano-Green Catalysis and Nano Center for Fine Chemical Fusion Technology, Department of Chemistry, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Young-Ki
authors.initials: YK
authors.lastname: Kim
authors.forename: Yong-Hwan
authors.initials: YH
authors.lastname: Mo
authors.forename: Jun
authors.initials: J
authors.lastname: Lee
authors.forename: Hyo-Sang
authors.initials: HS
authors.lastname: You
authors.forename: Chang-Keun
authors.initials: CK
authors.lastname: Yi
authors.forename: Young Cheol
authors.initials: YC
authors.lastname: Park
authors.forename: Sang-Eon
authors.initials: SE
authors.lastname: Park