By grafting amines onto the mesoporous support SBA-15,a highly efficient adsorbent has been obtained.This material shows potential applications in the removal of CO2 from enclosed areas such as space shuttles and submarines.SBA-15 was modified with 3-aminopropyl-triethoxysilane(APTES) by post-synthesis silylation and one-step silylation methods using ethanol as the solvent.The physical properties of these adsorbents were characterized by X-ray powder diffraction and N2 adsorption-desorption.The ordered hexa...