Polietilenimin ile Modifiye Edilmiş Silika Kserojellerin Kullanımı ile CO2 Tutumu

CO2 capture technologies using solid adsorbents are promising approach to reduce environmental pollution resulting from emission. In this study, silica xerogel derived cheap precursor was used as a adsorbent after polyethyleneimine (PEI) functionalization. Fourier transform infrared (FTIR) analyses indicated that PEI functionalized xerogels were successfully prepared. N2 adsorption-desorption isotherms revealed loading decreased specific surface area and pore volume of the neat in contrast size. An increase particle size observed case loading. Positively charged obtained with which had negatively surface. adsorption measurements showed capacity (0.98 mmol g-1) significantly increased increasing (30 – 70 wt%). At optimum (50 wt%), determined 1.94 g-1. After 5 cycles, still exhibited high capacity. The hopeful results can be an good performance stability.