Fig. 5From: Photo-Fenton Degradation of AO7 and Photocatalytic Reduction of Cr(VI) over CQD-Decorated BiFeO3 Nanoparticles Under Visible and NIR Light IrradiationHigh-resolution XPS spectra of a Bi 4f, b Fe 2p, c O 1s, and d C 1s for the 12C/BFO compositeBack to article page