친 이산화탄소 흡착제를 이용한 모르타르 내 이산화탄소 흡수능 평가

초록

This study focused on application of various CO2 philic adsorbents with amine to improve CO2 uptake in mortar. TGA, phenolphthalein method, FT-IR XRD, and FE-SEM analysis methods were used to evaluate CO2 capture in mortar. When CO2 philic adsorbents was used, CO2 absorption efficiency was improved maximum of 58.5%. Carbonation depth was increased 3 times compared with original mortar. Chemical reactions between bicarbonate ion, CO2, CO2 philic adsorbents aqueous solution, and Ca2+ ions dissolved from cement formed CaCO3 in the mortar. Therefore, impregnation of the CO2 philic adsorbent on the surface of the mortar can increase the adsorbed CO2.

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