通过水浴离子交换法,制备出长波紫外激发的Eu3+/Ce3+的偏蓝白光荧光体,并对其结构和光学性质进行研究.结果表明:(1)当Eu3+、Ce3+离子浓度比为1:1时,荧光效果最好；(2) Ce3+能作为敏化离子激活Eu3发光,所得样品在还原气氛下进行焙烧处理,得到长波紫外激发的主发射峰分别在458、548 nm处的Eu3+ - Ce3+ - 13X偏蓝白光荧光材料,并且随着烧结温度的升高,发射主峰发生明显的红移,发射峰的半峰宽明显增大.%The bluish white phosphors contaning Eu3+ /Ce3+ which could be excited by longwave ultraviolet were prepared via ion-exchange between Eu3*/Ce3* and zeolite 13X. Its structure and optical properties were characterized examined carefully,and the following results were obtained: (1) The best fluorescence was effect achieved at the concentration ratio of Eu3 + and Ce3 + of 1:1. (2) Cerium ions could be considered as sensitizer for europium ions. The Eu3+ - Ce3+ - 13X bluish white phosphors excited by long-wave ultraviolet which mainly concentrated around 458 nm and 548 nm were prepared. Emission band was red-shift and half emission peak width was increased when the sample was aclacined at elevated temperature under reducing atmosphere.
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