fig14

Figure 14. (A) Proposed reaction mechanism of benzyl radical oxidation over EC-BiOBr according to DFT calculations. The asterisk (*) denotes the adsorption site on the substrate; (B) Schematic illustrating the toluene oxidation mechanism over EC-BiOBr photocatalyst. Reproduced with permission, Copyright 2024, American Chemical Society^[124]; (C) Gibbs free energy profiles of photocatalytic toluene oxidation over pure CBB and TiO₂/CBB. Reproduced with permission, Copyright 2023, Elsevier^[110]. EC: (110) facet-exposed; DFT: density functional theory; CBB: Cs₃Bi₂Br₉.