| Fe3O4/PEI/Au@CdSe/CdS多功能复合材料的制备与表征 |
| |
| 引用本文： | 周翔,王秀玲,刘勇健,陈勇兵,刘敏.Fe3O4/PEI/Au@CdSe/CdS多功能复合材料的制备与表征[J].无机化学学报,2015,31(6):1165-1170. |
| |
| 作者姓名： | 周翔 王秀玲 刘勇健 陈勇兵 刘敏 |
| |
| 作者单位： | 苏州科技学院化学生物与材料工程学院, 苏州 215009;江苏省环境功能材料重点实验室, 苏州 215009;苏州科技学院化学生物与材料工程学院, 苏州 215009;江苏省环境功能材料重点实验室, 苏州 215009;苏州科技学院化学生物与材料工程学院, 苏州 215009;江苏省环境功能材料重点实验室, 苏州 215009;苏州科技学院化学生物与材料工程学院, 苏州 215009;苏州科技学院化学生物与材料工程学院, 苏州 215009 |
| |
| 基金项目： | 国家自然科学基金(No.51103120)资助项目。 |
| |
| 摘 要： | 以共沉淀法制备出Fe3O4纳米粒子,通过聚乙烯亚胺(PEI)修饰Fe3O4纳米粒子,再原位复合上Au纳米粒子,制得Fe3O4/PEI/Au纳米颗粒微球。再将Fe3O4/PEI/Au纳米颗粒与巯基乙酸修饰的量子点CdSe/CdS连接,成功制备了Fe3O4/PEI/Au@CdSe/CdS多功能复合微球。经过傅里叶变换红外光谱仪(FTIR)、荧光分光光度计、荧光显微镜、X射线衍射(XRD)、透射电子显微镜(TEM)及振动样品磁强计(VSM)的表征。结果表明:多功能复合微球的粒径在40nm左右,具有超顺磁性,剩磁,矫顽力近似等于零,饱和磁化强度为28.83A·m2·kg-1,同时兼有优越的荧光性能和金纳米粒子的特性。
|
| 关 键 词： | 磁性 Au纳米粒子 荧光 多功能材料 |
| 收稿时间： | 2015/1/16 0:00:00 |
| 修稿时间： | 2015/3/11 0:00:00 |
Preparation and Characterization of Fe3O4/PEI/Au@CdSe/CdS Multifunctional Composite Materials |
| |
| ZHOU Xiang,WANG Xiu-Ling,LIU Yong-Jian,CHEN Yong-Bing and LIU Min.Preparation and Characterization of Fe3O4/PEI/Au@CdSe/CdS Multifunctional Composite Materials[J].Chinese Journal of Inorganic Chemistry,2015,31(6):1165-1170. |
| |
| Authors: | ZHOU Xiang WANG Xiu-Ling LIU Yong-Jian CHEN Yong-Bing and LIU Min |
| |
| Institution: | School of Chemistry Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China;Key Laboratory of Environmental Functional Materials of Jiangsu Province, Suzhou, Jiangsu 215009, China;School of Chemistry Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China;Key Laboratory of Environmental Functional Materials of Jiangsu Province, Suzhou, Jiangsu 215009, China;School of Chemistry Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China;Key Laboratory of Environmental Functional Materials of Jiangsu Province, Suzhou, Jiangsu 215009, China;School of Chemistry Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China;School of Chemistry Biology and Material Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, China |
| |
| Abstract: | Fe3O4 nanoparticles were prepared by coprecipitation, which were modified by polyethyleneimine(PEI). Au nanoparticles were composited in situ, and then the Fe3O4/PEI/Au microspheres were obtained. CdSe/CdS QDs was modified with thioglycolic acid, and connected to magnetic nanoparticles. Fe3O4/PEI/Au@CdSe/CdS multifunctional composite microspheres were prepared successfully. Fourier transform infrared spectroscopy (FTIR), Fluorescence spectrophotometer, Fluorescence microscopy, X-ray diffraction (XRD), Transmission electron microscopy (TEM) and Vibrating sample magnetometer (VSM) are used for characterizing. The results shows that: the multifunctional composite microspheres with the size about 40 nm were superparamagnetic and remanence; the coercivity is near zero; the saturated magnetization is 28.83 A·m2·kg-1. What's more, the microspheres have both superior fluorescence and gold nanoparticles' properties. |
| |
| Keywords: | magnetic Au nanoparticles fluorescence multifunctional materials |
|
| 点击此处可从《无机化学学报》浏览原始摘要信息 |
| 点击此处可从《无机化学学报》下载免费的PDF全文 |
|
