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过程工程学报 ›› 2020, Vol. 20 ›› Issue (5): 583-590.DOI: 10.12034/j.issn.1009-606X.219267

• 过程与工艺 • 上一篇    下一篇

纳米荧光粉YPO4:2%Sm3+水热工艺条件的优化及荧光性能

吴锦绣1,3,4， 贾恒俊2,4， 贾慧灵2,4*， 李 梅1,3,4， 柳召刚1,3， 郭 京1,3   

  1. 1. 内蒙古科技大学材料与冶金学院，内蒙古 包头 014010 2. 内蒙古科技大学机械工程学院，内蒙古 包头 014010 3. 北京科技大学冶金与生态工程学院，北京 100083 4. 内蒙古自治区高校稀土现代冶金新技术与应用重点实验室，内蒙古 包头 014010
  • 收稿日期:2019-07-24 修回日期:2019-10-11 出版日期:2020-05-22 发布日期:2020-05-18
  • 通讯作者: 贾慧灵 m13674773965@163.c0m
  • 基金资助:
    包头稀土绿色提取及其轻稀土的应用;稀土纳米发光材料的制备及其生物应用

Optimization of hydrothermal process conditions of nanometer fluorescent powder YPO4:2%Sm3+ and fluorescence property

Jinxiu WU1,3,4, Hengjun JIA2,4, Huiling JIA2,4*, Mei LI1,3,4, Zhaogang LIU1,3, Jing GUO1,3   

  1. 1. College of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China 2. College of Mechanical Engineering, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia 014010, China 3. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China 4. Key Laboratory of Inner Mongolia Autonomous University on New Technologies of Modern Metallurgy and Application of Rare Earth, Baotou, Inner Mongolia 014010, China
  • Received:2019-07-24 Revised:2019-10-11 Online:2020-05-22 Published:2020-05-18

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摘要： 以荧光强度为指标，采用L9(34)正交实验优化纳米荧光粉YPO4:2%Sm3+的水热工艺条件(反应温度、反应时间、溶液的阴/阳离子比和pH值)。用X射线衍射仪(XRD)、扫描电镜及能谱(SEM and EDS)、荧光分光光度计(FL)、红外光谱仪(FT-IR)和紫外光谱仪(UV)等仪器对样品的组成、结构、形貌及其发光性能进行了表征和分析。结果表明，影响纳米荧光粉YPO4:2%Sm3+水热工艺条件的主次因素为反应温度>pH值>反应时间>阴/阳离子比。最佳的水热工艺条件为反应温度为200℃、pH=3、反应时间为12 h、阴/阳离子比3:1。最佳纳米荧光粉的结构为单一的四方晶体结构，形貌为纳米球，荧光强度最大，荧光寿命为0.1719 ms，禁带宽度为5.14 eV，色坐标为X=0.5563, Y=0.4339。

关键词: 纳米荧光粉YPO4:2%Sm3+, 水热法, 工艺条件, 荧光性能

Abstract: In order to study the optimal hydrothermal process conditions of nano-phosphor YPO4:2%Sm3+, using the fluorescence intensity as an indicator, the hydrothermal process conditions (reaction temperature, reaction time, the ratio of anion to cation in the solution and pH value) of the nano-phosphor YPO4:2%Sm3+ were optimized by L9(34) orthogonal experiment. Then, the composition, structure, morphology and luminescent property of the sample were characterized and analyzed by X-ray diffractometry (XRD), scanning electron microscopy (SEM and EDS), infrared spectrometer (FT-IR), ultraviolet spectrometer (UV) and fluorescence spectrophotometer (FL). The experimental results showed that the primary and secondary factors affecting the hydrothermal process conditions of nano-phosphor YPO4:2%Sm3+ were reaction temperature>pH value>reaction time>the ratio of anion to cation. The optimal hydrothermal process conditions of nano-phosphor YPO4:2%Sm3+ were reaction temperature of 200℃, pH=3, reaction time of 12 h, the ratio of anion to cation of 3:1. The optimum nano-phosphors was a single tetragonal crystal with the morphology of nanospheres, the maximum fluorescence intensity, and fluorescence life time of 0.1719 ms, band gap of 5.14 eV, color coordinate of X=0.5563, Y=0.4339.

Key words: nano-phosphor YPO4:2%Sm3+, hydrothermal method, process conditions, fluorescence properties