FIGURE 5 (A) Proposed PEC CO2RR mechanism of 1D Bi@ZFO NTs photocathode. (B) LSV curves and (C) FE of H2, CH4, CO, and HCOOH of the 1D Bi@ZFO NTs photocathode. Reproduced with permission.[62] Copyright 2022,American Chemical Society. (D) EPR spectra and (E) calculated Gibbs free energy of forming HCOOH. (F) Various product yield rates of the TiO2/Ti3CN MXene photocathode. Reproduced with permission.[67] Copyright 2023, Elsevier. (G) Proposed mechanism of PEC CO2RR to paraffin products and (H) paraffin yield rate of Znx:Coy@Cu photocathode. Reproduced with permission.[72] Copyright 2020, Elsevier.