Fig. 1. 2D pseudocolor in situ DRIFT spectra of the ZCOF20 for adsorption of H2O and IPA vapor for 1 h under dark conditions (a) and under 365-nm LED light illumination for an additional hour (b). The corresponding in-situ DRIFT spectra of ZCOF20 for adsorption (c) and oxidation (d) at indicated time. (e) Gibbs free energy diagram of IPA adsorption over ZnO (101) and COF (001) slabs. (f) EPR spectra of ZCOF20 dispersed in water under different conditions. Reproduced with permission from Ref. [5]. Copyright 2025, Wiley-VCH.

Fig. 2. 2D pseudocolor TA plots of ZnO (a), ZCOF20 (b), and COF (c). TA spectra of ZnO (d), ZCOF20 (e), and COF (f) at indicated time delays. The TA kinetics of ZnO (g) and ZCOF20 (h) probed at 379 nm within 5000 ps, and the TA kinetics of COF (i) and ZCOF20 (j) probed at 536 nm within 1000 ps. (k) Schematics for the electron quenching pathways of ZnO, COF, and ZnO/COF S-scheme heterojunction. Reproduced with permission from Ref. [5]. Copyright 2025, Wiley-VCH.