Anuj Chauhan

There are three categories of pores in active carbons: - micropores; - mesopores; - macropores. Pore sizes: - micropores (less than 2 nm); - mesopores (2 - 200 nm); - macropores (more than 200 nm). Since there are pores of 1-100 nm, then activated carbon can be called nanomaterial.

Anuj Chauhan Activated carbon can also be considered a nanomaterial when its average particle size is smaller than 100 nanometers.

there is no strict limitation on the size of features to be considered as nanomaterials. So yes 100 nm features can be considered nanomaterials. However, nanomaterials have to exhibit special chemical/physical properties due to nano-scale, In your case, you have to demonstrate how activated bulk carbon differs from 100 nm carbon. For example, there is a big difference between catalysts and nano-catalysts. If you can not show this, your statement on nano-material composition is very weak. On the contrary, some bulk materials exhibit nano-scale effects due to doping or effect in the material bulk. Good luck!