Synthesis of activated carbon from Parrotia persica using ZnCl2 activation for the adsorption of carbon dioxide

A series of activated carbons (ACs) were prepared from Parrotia persica by chemical activation with Zinc chloride forabsorbtion of CO2. For the ZnCl2 activated series, BET surface areas of 1924/9 m2/g was obtained from impregnationratios of IR=1. Three kinds of adsorbents was synthesized with different impregnation ration. The equilibriumadsorption of CO2 on ACs was determined at 298, and pressure range of 1-16 bar. The adsorption behavior, showing amonolayer adsorption capacity for CO2 on prepared ACs. Results demonstrated that with increasing in theconcentration of the activation agent, the excessive dehydration and the destruction of prepared activated carbonmicropores and turning them to larger pores occurred which reduces the CO2 adsorption efficiency.

کلیدواژه ها:

activated carbon ، Zinc Chloride ، adsorption