中文摘要：

为长综合的一个新奇方法晚霞硅酸盐黄磷 Sr3MgSi2O8 : 象反应物的 Eu2+ ， Dy3+using TEOS 和无机的粉末被报导。catalyzer 由调整系统的 pH 价值控制了 TEOS 的水解作用的醋酸。先锋的形态学被传播电子显微镜(TEM ) 描绘。结构和黄磷粉末的光性质系统地借助于 X 光检查衍射和 spectrofluorometry 被调查。TEM 图象反映了核心壳结构和先锋粒子的伪球形的形态学。单相的 Sr3MgSi2O8 水晶的结构在 1050 和 1250 nia tomentosa 被获得，这被发现被调查。样品由 FTIR， SEM，版本和 XRD 技术描绘了，显示表面象 carboxyl，内酯或酚和醚一样的功能的组消失在高激活温度(800 瘠瑡牥瑩吗？

英文摘要：

A novel method for synthesizing long afterglow silicate phosphor Sr3MgSi2O8：Eu^2＋,Dy^3＋using TEOS and inorganic powders as reactants was reported. Acetic acid as a catalyzer controlled the hydrolysis of TEOS by adjusting pH value of the system. The morphologies of precursor were characterized by transmission electron microscope （TEM）. The structure and optical properties of the phosphor powders were systematically investigated by means of X-ray diffraction and spectrofluorometry. TEM images have reflected the core-shell structure and quasi-spherical morphology of the precursor particles. It was found that the single-phase Sr3MgSi2O8 crystalline structures were obtained at 1050 and 1250 ℃ for the samples prepared with the nano-coating method and the solid state reaction, respectively. The emission intensities of the phosphors prepared by the present method were higher than those by the conventional process. Also, the afterglow characteristic was better than that prepared by solid-state reaction in the comparable condition.