fig8

Figure 8. In situ ESR spectra of radical adducts captured by (A) DMPO (^•O₂^-) and (C) TEMPO (h⁺) in TiO₂/CBB dispersion under both dark and light irradiation conditions. A comparison of the ESR signal intensities for (B) DMPO (^•O₂^-) and (D) TEMPO (h⁺) in TiO₂, CBB and TiO₂/CBB photocatalysts after the same exposure to light. Reproduced with permission, Copyright 2023, Elsevier^[110]. ESR: Electron spin resonance; DMPO: 5,5-dimethyl-1-pyrroline-N-oxide; TEMPO: 2,2,6,6-tetramethyl-1-piperidinyloxy; CBB: Cs₃Bi₂Br₉.