Figure 2

(a) Nitrogen adsorption–desorption isotherms (b) partially enlarged isotherms for GNs, L25G70, L50G45, L75G20, and LSMCO.

(a) Nitrogen adsorption–desorption isotherms (b) partially enlarged isotherms for GNs, L25G70, L50G45, L75G20, and LSMCO.