Fig. 4. (a) The comparison of EPR spectra of different composites under light irradiation. (b) Time dependent in situ EPR spectra of the generated DMPO-Cα radical within the CsPCN–CBB system upon irradiation. (c) Control experiments of photocatalytic ethylbenzene oxidation under different conditions. (d) Time dependent in situ DRIFT spectra of CsPCN–CBB under ethylbenzene and O2 atmosphere under irradiation. (e) Adsorption energy of oxygen on CBB, CsPCN and CsPCN–CBB. (f) Relative Gibbs free energy diagrams of photocatalytic ethylbenzene oxidation over CsPCN and CsPCN–CBB composite.
