The effect of functional groups on the SO2 adsorption on carbon surface I: A new insight into noncovalent interaction between SO2 molecule and acidic oxygen-containing groups

- SO2 molecule adsorbs on the basal plane of pure carbon surface by dispersion interactions.
- Hydrogen bonding and dipole-dipole interactions enhance on SO2 physisorption.
- The chemisorption of SO2 is not significantly affected by acidic oxygen-containing groups.