Fig. 6: Photogenerated electron transfer mechanism and dynamics. | Nature Communications

Fig. 6: Photogenerated electron transfer mechanism and dynamics.

From: Enhancing photocatalytic H2O2 production with Au co-catalysts through electronic structure modification

Fig. 6

a, b KPFM images and the corresponding surface potential profiles of the TiO2/MoSx-Au in the dark and light illumination, a 365 nm-LED light as the light source. c ISI-XPS spectra of Au 4f for TiO2/MoSx-Au before and after light illumination. Pseudocolor plots of d TiO2 and e TiO2/MoSx-Au (GSB represents ground-state bleaching). f, g Femtosecond transient absorption spectra of TiO2 and TiO2/MoSx-Au within 20 ps. All data were obtained under excitation of 330 nm and optical power of 600 μW cm−2. Schematic illustration of the decay pathways of photogenerated electrons in h TiO2 and i TiO2/MoSx-Au.

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