Fig. 1From: Impact of carbonization conditions and adsorbate nature on the performance of activated carbon in water treatment(a) Graphite made of layers of graphene; (b) Fullerene made of graphene layer joined end to end; (c) Multi-walled carbon nanotube with concentric hollow graphene rings; (d) Single-walled carbon nanotube with a half-fullerene endcap [19]Back to article page