Fig. 3: Stability, implication and photoelectrochemical analysis of Btt-based COFs.
From: Dual donor-acceptor covalent organic frameworks for hydrogen peroxide photosynthesis
a Photocatalytic decomposition of H2O2 (C0 = 1 mM) in pure water under an Ar atmosphere over TpaBtt, TapbBtt and TaptBtt. b Photocatalytic H2O2 production of TaptBtt for 7 h under simulated AM 1.5 G sunlight irradiation. Conditions: water (60 mL), catalyst (50 mg). c Stability measurement of TaptBtt for H2O2 generation in pure water. Conditions: water (50 mL), catalyst (15 mg), 300 W Xe lamp, λ > 420 nm. d Sulfamethoxazole decomposition directly using produced H2O2 solution via Fenton reaction. e UV–vis DRS of TpaBtt, TapbBtt, and TaptBtt. f Energy band values of these three COFs. the red and green lines represent for 2e− ORR and 2e− WOR, respectively. g Transient photocurrents of COFs under λ > 420 nm. h Photoluminescence spectra of three COFs. i Corresponding kinetics of characteristic fs-TA absorption bands observed at 540 nm for the spectra of TpaBtt, TapbBtt, and TaptBtt.
