PSA@Fe3O4dopedCdS的制备及流变性能研究  

Preparation and rheological property of PSA@Fe_3O_4 doped CdS

作　　者：姜翠凤[1] 江万权[1] 李剑锋[2] 龚兴龙[2] 

机构地区：[1]中国科学技术大学,化学系,安徽合肥230026 [2]中国科学技术大学近代力学系,中国科学院材料力学行为与设计重点实验室,安徽合肥230026

出　　处：《功能材料》2008年第12期2079-2081,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(10672154);高等学校博士学科点专项科研基金资助项目(20050358010)

摘　　要：用简单的湿化学方法首次制备了PSA@Fe3O4doped CdS核壳结构复合微球。采用X射线衍射(XRD)、透射电子显微镜(TEM)、物性测试系统(PPMS)和荧光光谱(PL)对制备的样品进行表征、观察和性质测定。结果显示所制备粒子晶型稳定,尺寸均匀,分散性好。另外,所制备的样品在室温下表现出超顺磁性和荧光性质,充分显示磁性和半导体性质的良好结合。用PSA@Fe3O4doped CdS颗粒作为磁性粒子制备磁性液体,对其在磁场下的运动和流变性能进行了研究。PSA@Fe3O4 doped CdS core/shell nanocomposite was prepared for the first time by a simple wetchemistry route. The as-made samples were characterized by X-ray powder diffraction（XRD）, transmission electron microscope （TEM）, physical property measurement system（PPMS） and photoluminescence（PL）. Results show that the prepared nanocomposite has uniform size and good dispersibility. The nanocomposite has also good superparamagnetic responsiveness in a magnetic field and exhibits photoluminescence characterization at room temperature.＇ In addition, properties of the ferrofluids prepared with these composite particles were studied.

关 键 词：四氧化三铁 硫化镉 核壳 荧光 流变性能 

分 类 号：O061[理学] O065