Fig. 1: Synthesis and structure of the photocatalysts.

a Synthetic process of PtSA/NP-TiO2 and PtSA/NP-TiO2-xBx, PTA denotes 1,4-benzenedicarboxylic acid, TBOT denotes Titanium butoxide, 4-PBA denotes 4-Carboxyphenylboronic acid, H2PtCl6 denotes Chloroplatinic acid. b FT-IR spectra of MIL-125, B-MIL-125 and B-MIL-125(Pt). c XRD images of the photocatalysts. d Raman spectra of the photocatalysts. SEM images of e PtSA/NP-TiO2 and f PtSA/NP-TiO2-xBx. g TEM images of PtSA/NP-TiO2-xBx. h High-resolution TEM images of PtSA/NP-TiO2-xBx. Source data are provided as a Source Data file.