介孔SiO2载银复合材料的制备及抗菌性能研究  

Preparation and antibacterial property of silver-loaded mesoporous silica composite

作　　者：成程 邬艳君 解蓉蓉 张曼莹 Cheng Cheng;Wu Yanjun;Xie Rongrong;Zhang Manying(Department of Chemical and Environmental Engineering,Jiangsu University of Technology,Changzhou 213001)

机构地区：[1]江苏理工学院化学与环境工程学院,常州213001

出　　处：《化工新型材料》2020年第7期265-270,共6页New Chemical Materials

基　　金：国家自然科学基金青年基金(51508239);江苏省自然科学基金青年基金(BK20150245);江苏省研究生科研与实践创新计划项目(SJCX18-0978);江苏省“青蓝工程”项目;江苏省研究生教育教学改革课题(JGLX18-165、JGLX18-166)。

摘　　要：研究了介孔二氧化硅(SiO2)及介孔SiO2载银纳米复合材料的制备工艺及其抗菌性能。分别用透射电子显微镜(TEM)、X射线衍射仪(XRD)、红外光谱(FT-IR)等技术对复合材料的表面形貌和组成进行了系统的表征。以革兰氏阴性大肠杆菌(EC)、铜绿假单胞菌(PA)、革兰氏阳性金黄色葡萄球菌(SA)3种细菌为代表对制备的抗菌材料进行检测。结果表明,介孔SiO2纳米颗粒具有有序的介孔结构,平均孔径在2.879nm;纳米银均匀地分散在孔道内,没有任何团聚现象;介孔SiO2载银纳米颗粒具有较强的抑菌效果,且随着载银量的增加而逐渐提高。The preparation process and antibacterial properties of mesoporous silica and mesoporous silverloaded silica nanocomposites were studied.The surface morphology and composition of the composites were characterized by transmission electron microscopy(TEM),X-ray diffraction(XRD)and infrared spectroscopy(FT-IR).The prepared materials were detected by using three bacteria:Escherichia coli(EC),Pseudomonas aeruginosa(PA),and Staphylococcus aureus(SA).The results shown that the mesoporous silica nanoparticles had an ordered mesoporous structure with an average pore diameter of 2.879 nm.The nano-silver was uniformly dispersed in the pores without any agglomeration.The mesoporous silica-loaded silver nanoparticles were stronger.The bacteriostatic effect was gradually increased as increasing the amount of silver supported.

关 键 词：介孔二氧化硅 纳米银 抗菌性 

分 类 号：X513[环境科学与工程—环境工程]