Photoluminescence of biogenic hydroxyapatite immobilized by europium and terbium cations

Structural identification of biogenic hydroxyapatite (bioHA) was carried out by IR-Raman-XRD spectroscopy, electron microscopy. By the method of dissolution / deposition of bioHA powders, isomorphic substitution of Ca by europium and terbium was carried out and its photoluminescent spectra were studied.