Fig. 5: Solvent-solvent interaction in the confined GO–PG nanochannel.
From: Smart and solvent-switchable graphene-based membrane for graded molecular sieving
a Schematic illustration of GO–PG nanochannel swelling in various solvents. (i) Strong solvent-channel interaction and weak solvent-solvent interaction, lead to strong swelling of GO–PG nanochannel; (ii) Strong solvent-channel interaction and strong solvent-solvent interaction, lead to medium swelling; (iii) Weak solvent-channel interaction and strong solvent-solvent interaction, lead to weak swelling. b Average numbers of hydrogen bonds between confined solvent molecules. c Average numbers of apolar association bonds between confined alcohol molecules. d Comparison of MWCO of GO/PG membranes in different solvents. Inset: The MWCO of GO/PG membrane in butanol and pentanol.
