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水热微乳液法合成BaLiF₃:Er³⁺纳米微粒及表征

Preparation and Characterization of BaLiF₃:Er³⁺ Nanoparticles by Hydrothermal Microemulsion Synthesised Method

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【Author】 Yan Jinghui1,Li Zhongtian1,Cao Jie1,Zhang Haiyan1,Wang Suqing1,Shi Chunshan2 (1.College of Chemistry and Environmental Engineering,Changchun University of Science and Technology,Changchun 130022,China;2.Key Laboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China)

【机构】长春理工大学化学与环境工程学院；中国科学院长春应用化学研究所稀土化学与物理重点实验室吉林长春130022；吉林长春130022；

【摘要】采用水/CTAB/正丁醇/正辛烷体系微乳液法及水热技术制备了BaLiF3∶Er3+纳米微粒。利用X射线衍射(XRD)、环境扫描电镜(ESEM)和红外荧光光谱等手段对所制备产物进行了表征。X射线衍射数据表明,所制备微粒与JCPDS标准卡片18-715吻合很好,利用谢乐公式计算所制备产物平均粒径在98.45 nm左右,与环境扫描电镜观察结果基本相同。BaLiF3∶Er3+纳米微粒的红外发射图谱由4个峰构成,最强峰位于1540 nm处,属于Er3+的f→f跃迁。更多还原

【Abstract】 Nanoparticles of BaLiF3∶Er3+ were prepared from the quaternary microemulsions of cetyltrimenthyl ammonium bromide(CTAB),n-butanol,n-octane and water by hydrothermal-microemulsion technique.The complex fluorides were characterized by mean of X-ray power diffraction,environmental scanning electron microscopy(ESEM) and fluorescence spectra.The positions and intensities of the peaks of XRD pattern of the final products showed the formation of BaLiF3∶Er3+ according to the standard JCPDS card No.18-715.No other peaks or impurities were detected.The average sizes of nanoparticles calculated by the Debye-Scherrer equation were 98.45 nm,which was uniformed with the result of ESEM.The infrared fluorescence spectra consisted of four peaks.The predominant peak was located at 1540 nm.更多还原