fig6
Figure 6. (A) SEM images of TiO2/ZnIn2S4/Co-Pi; (B) Photocurrent density-voltage (J-V) curves; (C) Applied bias photon-to-current efficiency (ABPE) curves; (D) Schematic diagram of the TiO2/ZnIn2S4/Co-Pi photoanode demonstrating the band positions and electron/hole pairs transformation processes[22]. Copyright 2022, Elsevier. SEM: Scanning electron microscope.
