银-氧化锌-黑滑石复合材料的制备及抑菌性能  

Preparation and Antibacterial Properties of Ag-ZnO/Talc

作　　者：吴海燕 孟宇航 易涵 陈莹[1,2,3] 杨华明 WU Haiyan;MENG Yuhang;YI Han;CHEN Ying;YANG Huaming(Engineering Research Center of Nano-Geomaterials of Ministry of Education,China University of Geosciences,Wuhan 430074,China;Faculty of Materials Science and Chemistry,China University of Geosciences,Wuhan 430074,China;Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry,China University of Geosciences,Wuhan 430074,China;Hunan Key Laboratory for Mineral Materials and Application,School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,China)

机构地区：[1]中国地质大学(武汉)纳米矿物材料及应用教育部工程研究中心,武汉430074 [2]中国地质大学(武汉)材料与化学学院,武汉430074 [3]中国非金属矿行业矿物功能材料重点实验室,武汉430074 [4]中南大学资源加工与生物工程学院,长沙410083

出　　处：《硅酸盐学报》2022年第10期2770-2777,共8页Journal of The Chinese Ceramic Society

基　　金：中央高校基本科研业务费专项基金资助项目。

摘　　要：为获得抗菌性能优良的材料,选用江西广丰黑滑石作为基体材料制备了Ag-ZnO/Talc三元复合材料,并采用扫描电子显微镜、透射电子显微镜、X射线衍射和X射线光电子能谱等分析手段对复合材料进行表征,以大肠杆菌和金黄色葡萄球菌为实验菌株采用平板计数法、抑菌圈法对复合材料抗菌性能进行试验。结果表明:黑滑石的片层状结构促进纳米颗粒分散,增大复合材料与细菌的接触面积;Ag-ZnO/Talc三元复合材料具有高的抗菌活性,对大肠杆菌和金黄色葡萄球菌的抑菌率可达到99%以上。To obtain materials with superior antibacterial properties,Ag-ZnO/Talc ternary composite was prepared by a water-bath heating method with black talc(from Guangfeng,Jiangxi)as a matrix material.The composite was characterized by scanning electron microscopy,transmission electron microscopy,X-ray diffraction,and X-ray photoelectron spectroscopy,respectively.Escherichia coli and staphylococcus aureus were used as the experimental strains.The antibacterial properties of the composite were examined by a plate counting method and a bacteriostatic zone method.The results show that the layered structure of talc sheet promotes the dispersion of nanoparticles and increases the contact area between the composite and bacteria.The Ag-ZnO/Talc composite displays a high antibacterial activity,and the antibacterial rate against escherichia coli and staphylococcus aureus reaches more than 99%.

关 键 词：黑滑石 复合材料 抗菌性能 

分 类 号：TQ-9[化学工程]