Fig 1

(a) Illustration of the synthesis pathway of the PyTdCOF/CdS composites. (b) UV-Vis DRS of CdS, PyTdCOF, and PyTdCdS5. (c) The coordination diagram of Cd. (d) N K-edge and (e) Cd M-edge for PyTdCdS5 in the dark and under UV irradiation, and the corresponding component materials in the dark. Reproduced with permission from Ref. [10]. Copyright 2025, Wiley."

Fig 2

(a) Illustrates the formation of IEF in S-scheme and charge transfer within the PyTdCOF/CdS heterojunction system. (b) N 1s and (c) Cd 3d for PyTdCdS5 in the dark and under UV irradiation, and the corresponding component materials in the dark. Reproduced with permission from Ref. [10]. Copyright 2025, Wiley."