Preparation and Antibacterial Performance of Zinc Pyrithione/Montmorillonite

doi:10.3724/SP.J.1077.2010.00512

Abstract

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.

Key words: pyrithione anion, montmorillonite, intercalation, antibacterial activity

CLC Number:

TB34

WANG Yun-Bin, YANG Jin-Tao, FEI Zheng-Dong, CHEN Feng, ZHONG Ming-Qiang. Preparation and Antibacterial Performance of Zinc Pyrithione/Montmorillonite[J]. Journal of Inorganic Materials, 2010, 25(5): 512-516.

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