which were measured by N2
adsorption isotherm using anASAP2010 Micromeritics instrument.
AC was washed several times with distilled water to remove any
fines attached to it. After that, it was considered fit for use when the
distilled water obtained after washing was visibly clear, and then
dried in an oven at 105 ◦C for 72 h and stored in an air-tight glass
bottle for later use.