[1]仝玉萍,陆路德,汪信,等.Eu2Sn2O7纳米晶的盐助甘氨酸燃烧法制备及结构表征[J].南京理工大学学报(自然科学版),2010,(03):386-390.
 TONG Yu-ping,LU Lu-de,WANG Xin,et al.Preparation and Structure Characterization of Eu2Sn2O7 Nanocrystals by Salt-assistant Glycine Combustion Method[J].Journal of Nanjing University of Science and Technology,2010,(03):386-390.
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Eu2Sn2O7纳米晶的盐助甘氨酸燃烧法制备及结构表征
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2010年03期
页码:
386-390
栏目:
出版日期:
2010-06-30

文章信息/Info

Title:
Preparation and Structure Characterization of Eu2Sn2O7 Nanocrystals by Salt-assistant Glycine Combustion Method
作者:
仝玉萍1 陆路德2 汪信2 薛盼盼2
1. 华北水利水电学院土木与交通学院, 河南郑州450011; 2. 南京理工大学软化学与功能材料教育部重点实验室, 江苏南京210094
Author(s):
TONG Yu-ping1LU Lu-de2WANG Xin2XUE Pan-pan2
1.School of Civil Engineering and Communication,North China University of Water Conservancyand Electric Power,Zhengzhou 450011,China;2.Key Laboratory for Soft Chemistryand Functional Materials,Ministry of Education,NUST,Nanjing 210094,China
关键词:
Eu2Sn2O7纳米晶 盐助甘氨酸燃烧法 制备 结构表征
Keywords:
Eu2Sn2O7 nanocrystals salt-assistant glycine combustion method synthesis structure characterization
分类号:
TB383.1
摘要:
为了获得高分散、粒度分布均匀的Eu2Sn2O7纳米晶,该文在相对较低的温度下采用了盐助甘氨酸燃烧法制备方法。通过X射线衍射、红外光谱、拉曼光谱及透射电镜等对产物进行了结构表征。结果表明:通过盐助甘氨酸燃烧法在700℃可获得超细的方块状的Eu2Sn2O7纳米晶,其粒度分布均匀,颗粒尺寸约为25 nm;在高分辨电镜图中,其晶格规则,说明所得Eu2Sn2O7纳米晶结晶性好,对应的晶面距为0.298 nm,相应于立方晶系的Eu2Sn2O7纳米晶的(222)晶面;室温下产物的荧光性质检测结果显示,在578~650 nm处出现了特征衍射峰,均相应于Eu3+f-f电子跃迁。
Abstract:
To obtain highly dispersed Eu2Sn2O7 nanocrystals with uniform size distribution,a salt-assistant glycine combustion method is used at relatively low temperature.The Eu2Sn2O7 nanocrystals are characterized by X-ray diffraction(XRD),infrared spectrum(IR),Raman spectrum and transmission electron microscopy(TEM).The results show that the ultrafine square-shaped Eu2Sn2O7 nanocrystals can be obtained at 700℃ by this method.The distribution of particle sizes is uniform and the average size is 25 nm.The regular lattices of Eu2Sn2O7 nanocrystals in the high resolution transmission electron microscopy(HRTEM) image show the Eu2Sn2O7 nanocrystals have good crystalline.The interplanar distance of 0.298 nm matches with that of(222) crystallographic plane of the cubic Eu2Sn2O7 structure.The fluorescent property result of Eu2Sn2O7 nanocrystals at room temperature shows the characteristic diffraction peaks appeare at the range of 578~650 nm,which is attributed to the f-f eletron transition of Eu3+.

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备注/Memo

备注/Memo:
基金项目: 华北水利水电学院高层次人才启动基金( 200820); 国家自然科学基金( 50572039); 郑州市科技领军人才项目( 096SYJH 23105)  作者简介: 仝玉萍( 1979- ), 女, 博士, 主要研究方向: 功能纳米晶的合成与性能, E-mail: huabe itong@ yahoo. cn。
更新日期/Last Update: 2010-06-30