Fig. 1

a SEM images of the as-synthesized Ag₃PO₄ product prepared by the precipitation method. b (Top panel) XRD patterns of the Ag₃PO₄ product, along with the patterns calculated using the Rietveld refinement method; the solid line (black) and open circles (red) present the measured and calculated XRD data, respectively. The intensity differences (blue) between the measured and calculated patterns are shown. The vertical markers (black) indicate the Bragg reflections. (Bottom panel) The XRD pattern and Miller indices of the cubic crystal structure of Ag₃PO₄ (JCPDS 06-0505) are included for comparison