Abstract
Abstract In the present study, mesoporous silica materials doped with metal ions (Al3+, Ti4+, Zr4+) were synthesized and characterized by a combination of various techniques, such as small angle X-ray scattering (SAXS), nitrogen adsorption/desorption at 77 K, elemental analysis, transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM). It was shown that the metal ion doped samples retained their porous structure, which was similar to that of parent SBA-15. The synthesized M-SBA-15 samples (M=Al3+, Ti4+, Zr4+) were evaluated in terms of adsorption of carbon dioxide and methane at 303 K. It was observed, that metal doping enhances carbon dioxide adsorption in comparison with purely siliceous sample, while low effect of metal doping on methane adsorption was observed.
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