Abstract
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.
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