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Functionalization of Delaminated Zeolite ITQ-6 for the Adsorption of Carbon Dioxide

  1. 1. 0328669 - UFCH-W 2010 RIV US eng J - Journal Article
    Zukal, Arnošt - Pérez-Dominguez, Irene - Mayerová, Jana - Čejka, Jiří
    Functionalization of Delaminated Zeolite ITQ-6 for the Adsorption of Carbon Dioxide.
    Langmuir. Roč. 25, č. 17 (2009), s. 10314-10321 ISSN 0743-7463
    R&D Projects: GA ČR GA203/08/0604
    Institutional research plan: CEZ:AV0Z40400503
    Keywords : zeolites * ITQ-6 * carbon dioxide
    Subject RIV: CF - Physical ; Theoretical Chemistry
    Impact factor: 3.898, year: 2009

    Novel functionalized adsorbents for CO2 separation were synthesized by grafting 3-aminopropyl, 3-(methylamino)propyl, or 3-(phenylamino)propyl ligands in the delaminated zeolite ITQ-6. On the basis of the texture parameters determined from nitrogen adsorption isotherms recorded at 77 K and the results of chemical analysis, physicochemical properties of functionalized ITQ-6 were evaluated and compared with those of mesoporous SBA-15 silica functionalized with the same ligands. To examine carbon dioxide adsorption on functionalized materials, adsorption isotherms at 293 K were measured. To obtain information on the surface energetics of CO2 adsorption on selected samples, isotherms were taken in the temperature range from 273 to 333 K and adsorption isosteres were calculated. Isosteric adsorption heats determined from the slope of adsorption isosteres proved that all of the 3-aminopropyl ligands in ITQ-6 take part in CO2 adsorption.
    Permanent Link: http://hdl.handle.net/11104/0005428