Fig. 4: Water transport and capillary effect.
From: Covalent organic framework photocatalysts for green and efficient photochemical transformations

a Dynamic water adsorption profiles. b Transfer rate–time variation curves. c Transfer rate–adsorption percentage variation curves. d–f Pore size-dependent capillary effect in HPTP-Ph-COF (d), HPTP-BPh-COF (e) and HPTP-TPh-COF (f). In (a–c), green, HPTP-Ph-COF; orange, HPTP-BPh-COF; blue, HPTP-TPh-COF.