Adsorption of ofloxacin and norfloxacin on carbon nanotubes: Hydrophobicity- and structure-controlled process

► A significant relationship between Kd and SSA for both OFL and NOR on CNTs. ► No relationship was observed between Kds and oxygen content of CNTs. ► Normalizing Kds by solubilites enlarged OFL and NOR sorption difference. ► OFL and NOR sorption was controlled by their structural- and hydrophobic-properties.