Amine-grafted zeolites-mesoporous ceramics: Synthesis and adsorption characteristics

Through a facile synthesis method, amine-grafted zeolites-based mesoporous ceramics as effective adsorbents for green-house gases, CO2 in particular, have been synthesized. Analyses on these mesoporous samples, using SAXD and SEM studies, indicate minor modification in the chemical texture of the ceramics. The chemisorbed gaseous species have been analyzed using BET and FTIR spectra. Grafting of the mesoporous solid with less saturated amine species, such as, TETA and DETA, enhances the adsorption of the green-house gas CO2 by about 40% in comparison to the samples prepared through grafting with more saturated alcohol-based amine group TEA.