Table 1: d-spacing and diffraction peak intensity of the single-phase FAp and FAp-ZnO composite nanopowders in comparison with the standard FAp (JCPDS#15–0876).

d-Spacing (nm)Relative intensity (%) 𝑘 𝑙
FApFAp-ZnOJCPDSFApFAp-ZnOJCPDS

0.344210.344300.3442030.9027.5840 (002)
0.280360.280280.28000100.00100.00100 (211)
0.270570.270740.2702056.1451.4360 (300)
0.193790.193790.1937033.9436.3525 (222)
0.183670.183760.1837040.5429.9430 (213)
0.171940.171960.1722014.8612.7916 (004)