镧、铕掺杂类水滑石材料的结构分析与性能研究  

Structure analysis and performance research of La,Eu-doped LDHs materials

作　　者：陈骏飞[1] 孙阳艺[1] 石林[1] 费慧龙[1] 吴秀玲[1,2] 刘晓旸[2] 

机构地区：[1]中国地质大学材料科学与化学工程学院,教育部纳米矿物材料及应用工程研究中心,湖北武汉430074 [2]吉林大学化学学院,无机合成与制备化学国家重点实验室,吉林长春130012

出　　处：《功能材料》2011年第S4期677-680,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(40872039);全国大学生创新性实验基金资助项目(091049138);中国地质大学英才工程(K3和K4);无机合成与制备化学国家重点实验室(吉林大学)开放研究基金资助项目(2010-04)

摘　　要：采用共沉淀和水热法合成了水滑石(LDHs)及稀土镧和铕分别掺杂的水滑石材料。利用XRD、FT-IR、TG/DSC及荧光光谱对样品的结构及性能进行了表征。XRD和FT-IR结果表明,3种样品均呈现典型的LDHs特征衍射峰,呈较好的层状结构和结晶性,稀土La3+和Eu3+成功地插入LDHs层板;TG/DSC曲线呈现了3种水滑石样品的热稳定性能;荧光光谱分析表明,在254nm激发下,掺杂后的Eu-LDHs仍保持Eu3+的特征谱线,Eu-LDHs是一种具有红色发光性质的材料。The samples of Mg-Al-M-hydrotalcite-like(M=Eu,La) compounds were prepared by co-precipitation and through hydrothermal treatment.XRD,FT-IR,TG/DSC and fluorescence spectrum were applied to analyze the structure and determine the properties of the samples.Results of XRD and FT-IR showed that typical diffraction peaks,which indicates the formation of layered structure,are observed in all three samples.TG/DSC curves demonstrate the thermal stability of the samples.Fluorescence spectroscopy analysis indicates that under excitation by 254nm,the Eu-LDHs keep the characteristic spectral.The XRD and infrared spectrum analysis results revealed that a few ions in layers are replaced by La3+,Eu3+ ions in our samples.La3+and Eu3+ successfully insert hydrotalcite layer.Eu-LDHs is a new kind of monochromatic red luminescence materials.

关 键 词：镧 铕 类水滑石 结构 性能 

分 类 号：O643.32[理学—物理化学]