摘要
采用传统的溶剂热法合成了 MIL-101(Fe)、MIL-101(Fe)/SiO2、MIL-101(Fe)/ZSM-5 和 MIL-101(Fe)/TiO2材料.为了探究不同材料与MIL-101(Fe)复合的效果,测试了 MIL-101(Fe)及其复合材料对兰氏阴性细菌大肠杆菌和革兰氏阳性细菌金黄色葡萄球菌的抗菌活性.通过XRD、XPS、BET、TG、SEM和TEM等表征方法对MIL-101(Fe)及其复合材料的晶相结构、表面组成、比表面积、热稳定性和形貌等特性进行了分析.研究发现,MIL-101(Fe)/SiO2和MIL-101(Fe)/TiO2表现出较好的抗菌性能,优于MIL-101(Fe).在复合材料中,SiO2和TiO2的引入,有利于对MIL-101(Fe)材料金属中心的电子分布、形貌、稳定性等性质进行调控.
Abstract
MIL-101(Fe),MIL-101(Fe)/SiO2,MIL-101(Fe)/ZSM-5 and MIL-101(Fe)/TiO2 materials were prepared by hydrothermal meth-od.In order to explore the effects of different materials compounded with MIL-101(Fe),the antimicrobial activity of MIL-101(Fe)and its com-posites against the Gram-negative bacterium Escherichia coli and the Gram-positive bacterium Staphylococcus aureus was tested.The crystalline structure,surface composition,specific surface area,thermal stability and morphology of MIL-101(Fe)and its composites were analyzed by XRD,XPS,BET,TG,SEM and TEM characterization methods.It was found that MIL-101(Fe)/SiO2 and MIL-101(Fe)/TiO2 exhibited well antimicrobial properties,which were better than MIL-101(Fe).In composite materials,the introduction of SiO2 and TiO2 is conducive to the regulation of the electronic distribution,morphology,stability and other properties of the metal center of MIL-101(Fe)material.
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