Solvothermal synthesis and characterization of Ln (Eu3+, Tb3+) doped hydroxyapatite.
Luminescent Ln (Eu3+, Tb3+) doped hydroxyapatite (Eu:HAp, Tb:HAp) phosphors were successfully fabricated via the cetyltrimethylammonium bromide (CTAB)/n-octane/n-butanol/water microemulsion-mediated solvothermal process. The structure, morphology, and optical properties were systematically characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), Fourier transform infrared spectroscopy (FT-IR), and photoluminescence (PL) spectra as well as the kinetic decays, respectively. The XRD results reveal that the obtained Eu:HAp and Tb:HAp show the characteristic peaks of hydroxyapatite in a hexagonal lattice structure. It is observed that the as-prepared luminescent samples exhibit rod-like morphology with well dispersed and non-aggregated size distribution. Upon excitation by UV radiation, the phosphors demonstrate the characteristic 5D 0-7F 1-4 emission lines of Eu3+ and the characteristic 5D4-7F 3-6 emission lines of Tb3+. Moreover, the photoluminescence intensities (PL) of Eu3+ and Tb3+ can be tuned by altering the solvothermal temperature and the doping concentration of Eu3+ and Tb3+.
College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, PR China.
Chun
C
Yang
Piaoping
P
Yang
Wenxin
W
Wang
Jun
J
Wang
Milin
M
Zhang
Jun
J
Lin
D002412:Cations / Q000737:chemistry; D017886:Durapatite / Q000138:chemical synthesis* / Q000737:chemistry*; D004655:Emulsions; D005063:Europium / Q000737:chemistry*; D006358:Hot Temperature; D049449:Luminescence; D008855:Microscopy, Electron, Scanning; D055095:Optics and Photonics; D012997:Solvents; D013725:Terbium / Q000737:chemistry*
D002412:Cations; D004655:Emulsions; D012997:Solvents; D013725:Terbium; D005063:Europium; D017886:Durapatite