摘要
以载锌蒙脱土为前驱体,在蒙脱土的层间,引入吡啶硫酮阴离子,原位制备了新型的吡啶硫酮锌/蒙脱土(ZPT/MMT)抗菌材料.采用XRD、FT-IR、TG、DSC和UV-VisDRS对材料的插层结构、耐光、耐热性能进行分析,结果表明,蒙脱土层间的吡啶硫酮阴离子以吡啶硫酮锌的形式存在,致使层间距d001值由1.29nm增至1.85nm,并且ZPT/MMT具有较好的耐光性和耐热性(热分解温度高于240℃).抗菌试验结果表明,ZPT/MMT对大肠杆菌和金黄色葡萄球菌具有较好的抗菌活性.
A novel antibacterial composite,zinc pyrithione/montmorillonite（ZPT/MMT） was in situ prepared by introducing pyrithione anion into the galleries of zinc-exchanged montmorillonite.The results of XRD,FT-IR,TG,DSC and UV-Vis DRS show that pyrithione anion exists in the form of zinc pyrithione,resulting in an increase of basal spacing of montmorillonite（d001 value） from 1.29nm to 1.85nm,and the ZPT/MMT has a favorable light and thermal stability（the decomposition temperature is above 240℃）.Antibacterial assays indicate that ZPT/MMT has an excellent antibacterial activity against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第5期512-516,共5页
Journal of Inorganic Materials
基金
浙江省重大科技专项资助项目(2006C11172)
关键词
吡啶硫酮阴离子
蒙脱土
插层
抗菌活性
pyrithione anion
montmorillonite
intercalation
antibacterial activity
