Fig. 5: CT interaction into the confined space towards the formation of ZrIII species.

a Transient photocurrent responses of MOF-808-PBA and MOF-808-PBA-MV in 0.2 M Na2SO4 aqueous solution under visible-light irradiation. b EPR spectra of MOF-808-PBA-MV in dark and under visible light irradiation. Magnified EPR spectra of MOF-808-PBA-MV showing the formation of ZrIII species. c Transient absorption spectra of MOF-808-PBA-MV at different time delays. d, e The transient decays at 440 and 650 nm. Solid lines in panels d and e are fitted data.