采用高温固相反应法制备了NaGdTiO4∶Eu3+红色荧光粉。利用X射线衍射和荧光光谱对NaGdTiO4∶Eu3+粉末进行了表征，研究了TiO2含量和Eu3+掺杂摩尔分数对粉末晶体结构和发光性能的影响。当TiO2的量在当量反应基础上增加50%时，制得了单一正交相NaGdTiO4。荧光光谱测试结果显示，样品在紫外区存在强的宽激发带，对应于NaGdTiO4基质的吸收。在281 nm紫外光激发下，样品显示出强的红光发射，表明NaGdTiO4基质到Eu3+之间存在有效的能量传递。该类钛酸盐红色荧光粉在近紫外光激发型白光LED中具有潜在的应用价值。

Eu3+-doped NaGdTiO4 red phosphors were synthesized by conventional solid state reaction method. The effects of TiO2 content and Eu3+ mole fraction on the crystal structure and photoluminescence properties were investigated by X-ray diffraction and fluorescent spectra. The XRD patterns showed that the resultants with single orthogonal phase structure were achieved when TiO2 content increased by 50% on the basis of stoichiometric reaction composition. In the excitation spectra of single orthogonal structure NaGdTiO4∶Eu3+ phosphors, by monitoring 618 nm, the charge transfer bands (CTB) of Eu3+-O2- and NaGdTiO4 matrix absorption centered at around 250 nm and 281 nm were observed, respectively. Under 281 nm excitation， strong red emission was observed at 618 nm originating from the 5D0→7F2 electric dipole transition of Eu3+, which suggests that there exist effective energy transfer from NaGdTiO4 matrix to Eu3+. The calculated emission color coordinates of NaGdTiO4∶20%Eu3+ are x=0.63, y=0.34. These results show that NaGdTiO4∶Eu3+ phosphors might have potential applications in whit light-emitting diodes (LEDs).