Fig. 5: Carrier dynamics and energy band structure of the photocatalysts.

a UV-vis spectra and b Tauc diagrams converted from UV-vis of TiO2, TiO2-xBx, PtSA/NP-TiO2 and PtSA/NP-TiO2-xBx. c M-H hysteresis of TiO2, PtSA/NP-TiO2 and PtSA/NP-TiO2-xBx. d Transient photocurrent responses and e EIS plots of TiO2, TiO2-xBx, PtSA/NP-TiO2 and PtSA/NP-TiO2-xBx. f PL and g TRPL spectra of the photocatalysts. Source data are provided as a Source Data file.