纳米氧化镁的合成及抗菌活性研究  

Preparation of nano-magnesium oxide and research on its antibacterial activity

作　　者：胡裕龙[1,2] 易师甜[1] 刘宏芳[1] 陈德斌[2] 郭兴蓬[1] 

机构地区：[1]华中科技大学化学与化工学院,武汉430074 [2]海军工程大学理学院,武汉430033

出　　处：《海军工程大学学报》2010年第5期26-29,85,共5页Journal of Naval University of Engineering

基　　金：湖北省重点实验室开放基金资助项目(200802)

摘　　要：以氯化镁和碳酸钠为原料,采用液相直接沉淀法制备了纳米氧化镁粉体,并研究了粉体的抗菌活性。采用X-射线衍射和透射电子显微镜对制备的纳米氧化镁粉体进行了表征。以金黄色葡萄球菌为试验菌株,对制备的纳米氧化镁粉体的杀菌性能进行了评价,结果表明:纳米氧化镁具有良好的杀菌能力,粉体质量浓度越高,粒径越小,杀菌效果越好;杀菌率随着作用时间的延长而增大,长效杀菌率可达到100%。With Na2CO3and MgCl2as raw materials,MgO nanoparticles powder was synthesized with the wet chemical precipitation method,and the antibacterial activities of the as prepared powders were investigated.The samples were analyzed by using X-ray diffraction（XRD）and transmission electron microscopy （TEM）.The antibacterial activity of MgO nanoparticles powder was evaluated with Staphylococcus aureus.The result shows that MgO nanoparticles powder has good antibacterial activity,that the bactericidal efficiency increases with the increase of powder concentration,particle size, and contact time,and that the bactericidal efficiency can reach to 100% with the increase of contact time.

关 键 词：纳米氧化镁 化学沉淀法 抗菌活性 

分 类 号：TB33[一般工业技术—材料科学与工程]