| 纳米荧光粒子YVO_4∶Eu的合成及其在指纹显现中的应用 |
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| 引用本文： | 辛娟,于迎春,刘建军,左胜利,杨瑞琴,王永刚. 纳米荧光粒子YVO_4∶Eu的合成及其在指纹显现中的应用[J]. 化学研究, 2010, 21(2): 1-6 |
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| 作者姓名： | 辛娟 于迎春 刘建军 左胜利 杨瑞琴 王永刚 |
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| 作者单位： | 1. 北京化工大学,理学院,北京,100029
2. 中国人民公安大学,刑事科学技术系,北京,100038 |
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| 基金项目： | "十一五"国家科技支撑计划资助项目 |
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| 摘 要： | 以柠檬酸为络合剂,在水相中合成了悬浮稳定性较好的稀土YVO4∶Eu溶胶,采用XRD、TEM、荧光光谱等技术,研究了稀土荧光粒子的尺寸、形貌、晶胞参数及发光性能.结果表明合成的YVO4∶Eu荧光粒子为四方晶系,粒径约为10nm,分散性较好;在pH=9.0时合成的Y0.7VO4∶Eu0.3溶胶具有最大的荧光强度,其最大发射峰在619nm;经乙二胺四乙酸二钠表面修饰后的Y0.7VO4∶Eu0.3纳米荧光粒子能够清晰地显现出光滑客体上的指纹,颜色为红色.
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| 关 键 词： | YVO4：Eu溶胶 纳米粒子 荧光材料 指纹显现 |
Synthesis of Fluorescent YVO4:Eu Nano-particle and Its Application in Developing Fingerprint |
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| XIN Juan,YU Ying-chun,LIU Jian-jun,ZUO Sheng-li,YANG Rui-qin,WANG Yong-gang. Synthesis of Fluorescent YVO4:Eu Nano-particle and Its Application in Developing Fingerprint[J]. Chemical Research, 2010, 21(2): 1-6 |
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| Authors: | XIN Juan YU Ying-chun LIU Jian-jun ZUO Sheng-li YANG Rui-qin WANG Yong-gang |
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| Affiliation: | 1. Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, China 2. Department of Forensic Science, Chinese People＇s Public Security University, Beijing 100038, China) |
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| Abstract: | A series of aqueous colloids of YVO4 ： Eu with well suspension stability were synthesized in aqueous-phase using citric acid as complexing agent. The XRD,TEM and fluorescence spectra were employed to characterize these aqueous colloids in respect to the particle size,mor- phology,lattice parameter and fluorescent intensity. The results indicate that the synthesized YVO4 ： Eu colloids with particle size of about 10 nm are of tetragonal system and can be dispersed well in water, in which the Y0 7VO4：EU0.3 synthesized at the pH of 9.0 has the highest fluorescence intensity at the emission peak of 619 nm. Under UV irradiation, the fingerprint details on the surface of smooth objects can be clearly developed in red color with Y0.7VO4 ： Eu0.3 aqueous colloids modified by ethylenediaminetetraacetic acid disodium salt. |
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| Keywords: | YVO4： Eu colloid nanoparticle fluorescence material fingerprint development |
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