Fig. 3: Carrier transfer mode and carrier dynamics of CuSA-TiO2. | Nature Communications

Fig. 3: Carrier transfer mode and carrier dynamics of CuSA-TiO2.

From: Single-atom Cu anchored catalysts for photocatalytic renewable H2 production with a quantum efficiency of 56%

Fig. 3

a Photoluminescence spectra of TiO2 and CuSA-TiO2 under an excitation wavelength of 375 nm. b In-situ Cu 2p XPS of CuSA-TiO2. c In-situ electron paramagnetic resonance spectra of CuSA-TiO2 with various states. d Transient absorption spectra of TiO2 and CuSA-TiO2 in the absence and presence of AgNO3 (2 mM), monitored in argon atmosphere after 320 nm excitation. e Charge dynamics decay in TiO2 and CuSA-TiO2 with and without methanol (10%) monitored at 650 nm. f The spectra of H2, HD, and D2 evolution on CuSA-TiO2 from the solution of CD3OD in H2O. g The spectra of H2, HD, and D2 evolution on CuSA-TiO2 from the solution of CH3OH in D2O.

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