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2009 , Vol. 24 >Issue 3: 549 - 552

DOI: https://doi.org/10.3724/sp.j.1077.2009.00549

研究论文

超声辅助合成CeF3纳米晶及其表征

  • 刘 阳 ,
  • 赵青岚 ,
  • 赵彦保 ,
  • 马雪慧 ,
  • 吴志申
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  • 河南大学 1. 特种功能材料重点实验室； 2. 化学化工学院, 开封 475004

收稿日期: 2008-08-11

  修回日期: 2008-10-16

  网络出版日期: 2009-05-20

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Synthesis and Characterization of CeF3 via Ultrasound Assisted Route

  • LIU Yang ,
  • ZHAO Qing-lan ,
  • ZHAO Yan-Ba1 ,
  • MA Xue-Hui ,
  • WU Zhi-Shen
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  • 1. Key Laboratory of Special Functional Materials, Henan University, Kaifeng 475004, China; 2. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China

Received date: 2008-08-11

  Revised date: 2008-10-16

  Online published: 2009-05-20

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摘要

用超声波辅助法制备了CeF3纳米晶.并用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线粉末衍射(XRD)、紫外吸收(UV)光谱和荧光光谱(PL)对纳米晶的结构与性能进行了表征.结果表明：超声时间对所制备的CeF3纳米晶的形貌有很大的影响.随着超声时间的延长,所制备样品的形貌由“笼形”演变为规整的盘形.随着样品粒径的减小,纳米晶的紫外吸收峰和吸收带边发生明显的蓝移.纳米晶的荧光强度与纳米晶的结晶程度有关.

关键词： 超声辅助; 氟化铈纳米晶; 表征; 超声时间

本文引用格式

刘 阳 , 赵青岚 , 赵彦保 , 马雪慧 , 吴志申 . 超声辅助合成CeF3纳米晶及其表征[J]. 无机材料学报, 2009 , 24(3) : 549 -552 . DOI: 10.3724/sp.j.1077.2009.00549

Abstract

CeF3 nanocrystals were successfully synthesized via ultrasound assisted route, which were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), powder Xray diffraction (XRD), ultraviolet (UV) spectroscope and photoluminescence spectrophotometer (PL). The results show that the shape and size of products are strongly depended on the ultrasonic time. With the increment of the ultrasonic time, the morphology of the CeF3 nanocrystals changes from “lantern” particles to uniform disklike particles. The UV absorption peak and the band-edge of the CeF3 nanocrystals exhibit a pronounced blue shift as the size of the particles decreasing, the PL intensity of CeF3 nanocrystals is related to the crystalline extent.

Key words： ultrasonicassisted; cerium fluoride nanocrystalline; characterization; ultrasonic time

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