Fig 1

(a) Schematic diagram of the synthesis route of LFPO/CN composites. (b) XRD patterns and (c) FT-IR spectra of LFPO, CN and LFPO/CN samples."

Fig 2

TEM images of (a) LFPO and (b) LFPO5/CN. (c) HRTEM image and (d–g) EDX elemental mapping of LFPO5/CN sample."

Fig 3

(a) UV-vis DRS spectra of CN and LFPO/CN samples; Mott-Schottky plots of (b) LFPO and (c) CN; (d) Energy band diagrams and H2O2 photosynthesis mechanism of LFPO and CN."

Fig 4

(a) Photocatalytic H2O2-production performance for different samples in an ethanol-water solution (10% vol.) under simulated solar irradiation. (b) Photocatalytic H2O2 production with LFPO5/CN under monochromatic irradiation at 365, 420, and 550 nm. (c) Photocatalytic H2O2-production performance over samples in different atmosphere conditions. (d) The stability evaluation and (e) performance under different water conditions over LFPO5/CN. (f) Photocatalytic antibacterial properties of LFPO, CN and LFPO5/CN."

Fig 5

(a) Periodic on/off photocurrent response and (b) electrochemical impedance over LFPO, CN and LFPO5/CN samples. (c) PL spectra and (d) SPV spectra of LFPO, CN and LFPO/CN samples."

Fig 6

In situ and ex situ XPS spectra of (a) Fe 2p, (b) P 2p, (c) C 1s and (d) N 1s of LFPO, CN, and LFPO5/CN. In situ XPS spectra were collected under UV-vis light irradiation."

Fig 7

(a) AFM image of LFPO5/CN. Potential difference distribution at the LFPO5/CN interface (b) without light or (c) with light exposure. (d) Schematic showing the S-scheme migration of photogenerated carriersin LFPO/CN interface."

Fig 8

In situ EPR signals of (a) ∙O2− and (b) 1O2 over LFPO5/CN under dark and visible light conditions. (c) Photocatalytic H2O2 evolution for LFPO5/CN in complete photocatalysis, 1 mmol∙L−1 β-carotene, AgNO3 and BQ solutions. In situ DRIFT spectra of LFPO5/CN under illumination. The wavenumber ranges from (d) 800 to 1700 cm−1 and (e) 2900 to 3500 cm−1. (f) Schematics of photocatalytic H2O2 production over LFPO5/CN."