Yang Chun, Yang Piaoping, Wang Wenxin, Wang Jun, Zhang Milin, Lin Jun
College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, PR China.
J Colloid Interface Sci. 2008 Dec 1;328(1):203-10. doi: 10.1016/j.jcis.2008.09.010. Epub 2008 Sep 10.
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+.
通过十六烷基三甲基溴化铵（CTAB）/正辛烷/正丁醇/水微乳液介导的溶剂热法成功制备了发光的Ln（Eu3 +，Tb3 +）掺杂羟基磷灰石（Eu：HAp，Tb：HAp）荧光粉。分别通过X射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X射线光电子能谱（XPS）、傅里叶变换红外光谱（FT-IR）和光致发光（PL）光谱以及动力学衰减对其结构、形态和光学性质进行了系统表征。XRD结果表明，所获得的Eu：HAp和Tb：HAp呈现出六方晶格结构中羟基磷灰石的特征峰。观察到所制备的发光样品呈现棒状形态，尺寸分布分散且无聚集。在紫外辐射激发下，荧光粉展示出Eu3 +的特征5D0 - 7F1 - 4发射线和Tb3 +的特征5D4 - 7F3 - 6发射线。此外，Eu3 +和Tb3 +的光致发光强度（PL）可以通过改变溶剂热温度以及Eu3 +和Tb3 +的掺杂浓度来调节。
