A Modified Hydrothermal Synthesis and Luminescence of Hydroxyapatite Doped with Ce³⁺ and Tb³⁺ Ions

Abstract:

Luminescent Ln³⁺ (Ce³⁺, Tb³⁺) doped hydroxyapatite (HAp: Ce, Tb) phosphors were successfully fabricated via the modified hydrothermal process. The structure, morphology, and luminescent properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence (PL) spectra respectively. The XRD results reveal that the obtained HAp: Ce, Tb phosphors show the characteristic peaks of hydroxyapatite in a hexagonal lattice structure and the import of Ce³⁺and Tb³⁺ causes small change in the crystalline structure and leads to the peaks shifting and declining. It is observed that the as-prepared luminescent samples exhibit nearly equiaxial morphology of dispersed particles about 50-150 nm in size. Under 254 nm UV radiation excitation, the phosphors demonstrate the characteristic ⁵D₄⁷F₃₆ emission lines of Tb³⁺and the excitation of Tb³⁺ is mainly caused by the energy transfer from Ce³⁺. PL intensity of Tb³⁺ doped HAp remarkably strengthened with increment of Ce³⁺ concentration and reached the maximum at the concentration of 4 mol%.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 1639-1642
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.1639
• Online since: August 2013
• Authors: Si Hua Wang, Zhi Gang Liu, Qiao Wang, Li Rong Yang, Feng Feng Li, Shou Wu Yu, Xiao Qing Liu, Peng Zhou, Xiao Xin Feng
• Keywords: Hydroxyapatite (HA), Lanthanide Ions, Luminescence

References

[1] S.I. Stupp and P.V. Braun: Science Vol. 277 (1997), p.1242.

[2] W. Suchanek and M. Yoshimura: Mater. Res Vol. 13 (1998), p.94.

[3] M.Y. Ma, Y.J. Zhu, L. Li and S.W. Cao: Mater. Chem Vol. 18 (2008), p.2722.

[4] Maitra A: Expert. Rev. Mol. Diagn Vol. 5 (2005), p.893.

[5] Y.R. Cai and R.K. Tang: Mater. Chem Vol. 18 (2008), p.3775.

[6] Y.C. Han, X.Y. Wang, H.L. Dai and S.P. Li: Journal of Luminescence Vol. 135 (2013), p.281.

[7] F. Chen, P. Huang, Y.J. Zhu and J. Wu: Biomaterials Vol. 32 (2011), p.9031.

[8] Z.Y. Hou, P.P. Yang, H.Z. Lian and L.L. Wang: Chem. Eur. J Vol. 15 (2009), p.6973.

[9] T.C. Rojas and M. Ocaña: Scripta. Materialia Vol. 46 (2002), p.655.

[10] C. Yang, P.P. Yang and W.X. Wang: Colloid and Interface Science Vol. 328 (2008), p.203.