Heterogeneous activation of persulfate by Bi2MoO6–CuS composite for efficient degradation of orange II under visible light

Construction of Cu7S4@CuCo2O4 Yolk–Shell Microspheres Composite and Elucidation of Its Enhanced Photocatalytic Activity, Mechanism, and Pathway for Carbamazepine Degradation

“…Simultaneously, the electrons were effectively retained in the conduction band (CB) of CS after excitation rather than migrated to the CB of CCO due to the potential reduction of ·O− 2 (−0.33 V vs NHE) possessing higher negative potential than the E CB of CCO (0.097 V), and thus the electrons on CS could not reduce O 2 to yield ·O− 2. [ 42,43 ]…”

“…[41] Additionally, no peak was present under the dark condition (Figure 6c). [42,43] Figure 7 shows different characterizations of the photogenerated e − -h + pairs of the CS, CCO, and CS/CCO composites. First, to investigate the separation and the lifetime of photogenerated e − -h + pairs, we conducted photoluminescence (PL) with 325 nm excitation wavelength and time-resolved photoluminescence decay (TRPD) spectroscopy.…”