Abstract
In the present work, commercial zeolites 13X and 5A are embedded with LiOH (LEZ-13X and LEZ-5A) to remove CO2 under simulated indoor conditions. Although the BET surface area of both LEZ sorbents was much smaller than that of bare zeolite material, it showed highly enhanced CO2 adsorption capacity. The requirement of optimum moisture content for maximum CO2 adsorption was established by correlating the relative humidity (RH) values and CO2 uptake. The modified sorbents performed effectively even in presence of air or oxygen carrier gas, which demonstrated its viability to adsorb CO2 from indoor environments at ambient conditions.
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