Table 4 Adsorption energies (ΔE) of nicotine on graphene with various oxygen surface functional groups.

From: Insight into the effects of different oxygen heteroatoms on nicotine adsorption from cigarette mainstream smoke

Complex structures

ΔE (kcal mol−1)

Graphene/nicotine

− 8.32

Carboxylic graphene/nicotine

− 15.58

1,2-Benzoquinone graphene/nicotine

− 10.69

Glutaric Anhydride/nicotine

− 10.30

δ-Valerolactone graphene/nicotine

− 10.17

Hydroxylic graphene/nicotine

− 8.36