Fig. 8

(a) N2 adsorption (ADS)-desorption (DES) isotherm of BET analysis for optimum ZnO sample; (b) BJH desorption pore size distribution (PSD) of optimum sample.

(a) N2 adsorption (ADS)-desorption (DES) isotherm of BET analysis for optimum ZnO sample; (b) BJH desorption pore size distribution (PSD) of optimum sample.