Influence of ultra-micropore volume of activated carbons prepared from noble mung bean on the adsorption properties of CO 2 , CH 4 , and N 2

In this study, mung bean-based nanoporous activated carbons with different pore properties were prepared by varying the mass ratio of activating agent (KOH) and activation temperature. The low-temperature nitrogen adsorption analysis was used to characterize the effect of the KOH ratios and the activation temperatures on the textural properties and surface heterogeneity. The prepared ACs were further used to measure the adsorption capacity of CO 2 , CH 4 , and N 2 . We found that the adsorption amounts were highly dependent on the ultra-micropore volume ( V D