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第 36 卷第 5 期 精 细 化 工 Vol.36, No.5
201 9 年 5 月 FINE CHEMICALS May 2019

功能材料
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发光增强的红色荧光粉 Li Zr O :Eu 的
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7
6
微波固相合成

隆金桥，韦金雷，欧阳思铭，孙榕励，谭能文，舒 韦

（百色学院 化学与环境工程学院，广西 百色 533000）

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摘要：以硝酸锆、硝酸锂、Eu(NO 3 ) 3 6H 2 O 为原料，采用微波固相烧结法合成了系列红色荧光粉 Li 6 Zr 2 O 7 :Eu 。
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利用 XRD 和荧光光度计对样品的组成和发光性能进行了表征。考察了烧结时间、烧结温度及 Eu 的含量对荧光
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粉发光性能的影响。XRD 分析结果表明，Li 6 Zr 2 O 7 :Eu 荧光粉为纯相晶体结构。根据离子电负性标度可知，Eu 3+
4+
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（1.433）会优先取代电负性相近 Zr 的位置（1.610）。当微波烧结时间为 10 min、烧结温度为 500 ℃、Eu 在
晶体中的含量为 14%时（以 Li 6 Zr 2 O 7 的物质的量为基准，下同），在 465 nm 激发下，制备得到的 Li 6 Zr 2 O 7 :0.14Eu 3+
荧光粉在 615 nm 处产生最强的红光发射，且发射光谱在 615 nm 的强度是激发光谱在 465 nm 强度的 1.54 倍。
此时荧光粉色坐标为 X=0.65，Y=0.35，具有很高的色纯度，与商用红色荧光粉（0.63，0.34）相比更接近国家标准
（0.67，0.33）。
关键词：微波固相；发光增强；红色荧光粉；功能材料
中图分类号：TB39;O482.31 文献标识码：A 文章编号：1003-5214 (2019) 05-0807-06

Microwave Solid Phase Synthesis of a Red-emitting Phosphor
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Li 6Zr 2O 7:Eu with Luminescence Enhancement

LONG Jin-qiao, WEI Jin-lei, OUYANG Si-ming, SUN Rong-li, TAN Neng-wen, SHU Wei
（College of Chemistry & Environment Engineering, Baise University, Baise 533000, Guangxi, China）

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Abstract: A series of red-emitting phosphors Li 6Zr 2O 7:Eu were synthesized by microwave solid phase
sintering using zirconium nitrate, lithium nitrate and Eu(NO 3) 3·6H 2O as raw materials. The composition and
luminescence properties of the samples were characterized by XRD and fluorescence photometer. The
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effects of sintering time, sintering temperature and content of Eu on the luminescence properties of the
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phosphors were investigated. The results showed that the samples had crystal phases of Li 6Zr 2O 7:Eu .
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According to ionic electronegativity scale, Eu (1.433) ions gave priority to replacing the position of Zr
(1.610) ions, which had similar electronegativity. When the sintering time was 10 min, the sintering
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temperature was 500 ℃, the content of Eu ions was 14% of molar amount of Li 6Zr 2O 7, under 465 nm
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excitation, the prepared phosphor Li 6Zr 2O 7:0.14Eu generated the strongest red emission at 615 nm. Its
emission spectrum at 615 nm was 1.54 times stronger than that of excitation spectrum at 465 nm. At this
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point, its fluorescence pink coordinate was X=0.65, Y=0.35. The phosphor Li 6Zr 2O 7:0.14Eu had very high
color purity, closer to the national standard (0.67, 0.33) than the commercial red-emitting phosphor (0.63, 0.34).
Key words: microwave solid phase; luminescence enhancement; red-emitting phosphor; functional
materials
Foundation items: National Natural Science Foundation of China (21661006); Key Project of Scientific
Research in Colleges and Universities in Guangxi (KY2015ZD117); National College Students Innovation
and Entrepreneurship Plan Project in 2017 (201710609004)

收稿日期：2018-07-18; 定用日期：2019-01-02; DOI: 10.13550/j.jxhg.20180531
基金项目：国家自然科学基金（21661006）；广西高校科研重点项目（KY2015ZD117）；2017 年国家级大学生创新创业计划立项项目
（201710609004）
作者简介：隆金桥（1970—），男，副教授，E-mail：long_403@163.com。