Fig. 3From: Facile Synthesis and Enhanced Visible-Light Photocatalytic Activity of Novel p-Ag3PO4/n-BiFeO3 Heterojunction Composites for Dye DegradationHigh-resolution XPS spectra of BiFeO3 and 20wt%Ag3PO4/BiFeO3 sample. a Ag 3d and b P 2p of 20wt%Ag3PO4/BiFeO3 sample. c Bi 4f, d Fe 2p, and e O1s of BiFeO3 and 20wt%Ag3PO4/BiFeO3 sampleBack to article page