Kim et al. [60] studied the performance of acid and base
impregnated coconut shell activated carbons in VOC adsorption.
Various VOCs such as benzene, toluene, o-,m-, p-xylene, methanol,
ethanol, i-propanol, and methyl ethyl ketone (MEK) were adsorbed
on the prepared activated carbon. The VOCs adsorption characteristics
and chemical properties of the activated carbons were