Mesoporous cobalt tungstate nanoparticles for efficient and stable visible-light-driven photocatalytic CO2 reduction

Improved H2O2 photogeneration and stability on rational tailored polymeric carbon nitride via enhanced O2 adsorption

“…5a, the CNR-0.5 sample exhibits significantly reduced PL emission compared to CN, indicating its lower charge recombination. 54 The decreased PL emission owing to the synergistic effect of the strong electron-withdrawing ability of the cyano groups and enhanced electron transport between the PCN layers attributed to the Rb bridges. Moreover, the average charge-carrier lifetime was investigated using the time-resolved transient PL spectra to study the charge-carrier separation behaviors.…”

One-step construction of Y, C, and O tridoped g-C3N4 as a bifunctional photocatalyst for H2 evolution and organic pollutant degradation under visible light irradiation

“…PL, photocurrent, and EIS measurements were conducted to reveal the promoted separation efficiency and transfer of photoinduced charge carriers. 58–62 The photoluminescence emission spectra of CN had a strong emission maximum at 460 nm attributed to emissions of band edges containing π-conjugated states, showing fast recombination of photoexcited carriers (Fig. 5c).…”

Constructing Oxygen Vacancies on Bi2MoO6 Nanosheets by Aqueous Ammonia Etching with Enhanced Photocatalytic NO Oxidation Performance

“…Briefly, a strong PL emission intensity is detected for BMO, demonstrating its strong charge recombination behavior after excitation. However, the corresponding PL emission intensity decreases sharply for BMO-OH, indicating that the charge recombination behavior is restrained effectively by introduced OVs. ,− That is, BMO-OH possesses a higher photogenerated charge separation efficiency than BMO. This viewpoint can be further illustrated by the light on–off induced photocurrent–time behaviors shown in Figure c.…”