微乳液法一步制备NaYF_4∶Yb^(3+),Ho^(3+)@Au  

One-Pot Microemulsion Synthesis of NaYF_4∶Yb^(3+),Ho^(3+)@Au

作　　者：王智慧[1] 龙丹丹[2] 李子娟 杨亚飞[3] 闫景辉[2] 邹明强[4,5] WANG Zhi-hui;LONG Dan-dan;LI Zi-juan;YANG Ya-fei;YAN Jing-hui;ZOU Ming-qiang(Vasculocardiology Deparment of The Second Affiliated Hospital of Jilin University, Changchun 130021, China;School of Chemical and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China;Ningbo Iron and Steel Limited Company, Ningbo 315807, China4. Chinese Academy of Inspection and Quarantine, Beijing 100123, China5. China Inspection Laboratory Technologies Co. Ltd., Beijing 100123, China)

机构地区：[1]吉林大学第二医院心血管内科,吉林长春130021 [2]长春理工大学化学与环境工程学院,吉林长春130022 [3]宁波钢铁有限公司,浙江宁波315807 [4]中国检验检疫科学研究院,北京100123 [5]中检国研(北京)科技有限公司,北京100123

出　　处：《光谱学与光谱分析》2018年第6期1793-1797,共5页Spectroscopy and Spectral Analysis

基　　金：吉林省科学技术厅科技攻关计划重大科技招标专项(20150203013YY);吉林省科学技术厅科技支撑重点项目(20120223);国家重大科学仪器设备开发专项(2012YQ090197);国家"十二五"科技支撑计划项目(2012BAK26B04)资助

摘　　要：稀土氟化物纳米材料及其贵金属复合物具有独特的光、电、磁性质,在生物标记、光学储存、显示、防伪等领域有着广泛的应用,已成为材料科学领域的研究热点之一。采用微乳液法制备了NaYF_4∶Yb^(3+),Ho^(3+)和NaYF_4∶Yb^(3+),Ho^(3+)@Au复合材料,XRD测试表明NaYF_4∶Yb^(3+),Ho^(3+)的结晶情况良好,无杂质峰,为立方相,NaYF_4∶Yb^(3+),Ho^(3+)@Au产物的衍射峰中同时含有NaYF_4与Au两种晶相;SEM图像显示两种纳米粒子均为形貌、尺寸较为均一的球形粒晶为58nm左右;上转换光谱中显示Ho^(3+)在484,682和767nm处具有很高的发光强度,分别对应于~5S_2→~5I_8,~5F_5→~5I_8,~5S_2→~5I_7跃迁。Rare earth fluoride nanomaterials and their precious metal complexes have unique optical, electrical and magnetic properties, which have been widely used in biomarker, optical storage, display and security. It has become one of the hotspots in the field of materials science. In this paper, the NaYF4∶Yb3＋, Ho3＋, NaYF4∶Yb3＋, and Ho3＋ @Au composites were prepared by using microemulsion method. The results show that NaYF4∶Yb3＋, Ho3＋@Au composites were directly formed in the microemulsion system. The XRD shows that the NaYF4∶Yb3＋, Ho3＋ is cubic phase, and there is no impurity peaks. Moreover, the diffraction peaks of NaYF4∶Yb3＋, Ho3＋ @Au contain both NaYF4 and Au. It can be seen from the SEM that the nanoparticles are uniform spherical whose particle size is about 58 nm. In the up-conversion spectra, the high luminous intensity at 484, 682 and 767 nm are corresponding to 5S2→5I8, 5F5→5I8, 5S2→5I7 transition of Ho3＋.

关 键 词：稀土氟化物/贵金属 微乳液法 生物标记 

分 类 号：O611.4[理学—无机化学]