The effect on the friction is predicted to increase with the number of hydrogen bonds between the water molecules and the defects . While simulation studies offer a great understanding of the underlying transport mechanism , an experimental observation is still lacking. Experimental studies so far mainly focus on how the ionic transport occurs in these nanochannels . However, a systematic study on the water transport in graphene-based nanochannels with water attraction impurities has remained elusive. Thus, controlling the affinity of water molecules towards the nanochannel walls by intercalation of cations with different hydrated diameter may offer a unique platform to tailor and understand the water friction of the unusual water transport in graphene-based nanochannels.