摘要
首先用水热法制备了Fe3O4纳米球,然后以制备的磁性Fe3O4纳米粒子为磁核,在高温高压反应釜中与葡萄糖反应,使其表面包覆一层聚糖,利用聚糖的还原性,让包覆后的粒子与AgNO3反应,制备出Fe3O4/Ag纳米复合粒子。用透射电镜(TEM)、X射线衍射仪(XRD)对所制备的材料的形貌和结构进行了表征。通过抑菌实验的测定,结果表明Fe3O4/Ag复合材料具有良好的抑菌活性。
We prepare Fe3O4 nanoparticles by solvothermal routes. We obtain Fe3O4/Ag nanocomposite with Fe3O4 nanoparticales as magnetic core, reaction with glucose in a high-temperture and high-pressure reactor and the coated nanoparticles reaction with AgNO3 by the reduction of chitosan. Their morphology and structure are characterized by transmission electron microscopy （TEM） and X-ray diffraction （XRD）. Determination of antibacterial test of minimal inhibitory concentration and minimum bactericidal concentration shows that composite materials Fe3O4/Ag have better antibacterial activity.
出处
《山东科学》
CAS
2012年第3期62-65,87,共5页
Shandong Science
