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Preparation of Ag-impregnated Porous Ceramic Beads and Antibacterial Properties  

Seo, Won-Hak (Department of Geoenvironmental System Engineering, Hanyang University)
Han, Yo-Seop (Department of Geoenvironmental System Engineering, Hanyang University)
Jeong, Young (Micropore. Co. Ltd)
Park, Jai-Koo (Department of Geoenvironmental System Engineering, Hanyang University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.27, no.5, 2005 , pp. 549-554 More about this Journal
Abstract
Porous ceramic beads that had skeleton structure were impregnated with Ag from silver nitrate solution. Ag-impregnated porous ceramic beads were performed to evaluate the antibacterial properties on Escherichia coli and Staphylococcus aureus, also, compared with commercial silver-activated carbon on antibacterial activity. As concentration of silver nitrate solution increased, deposited-Ag contents of outer and inner surface of beads were increased. The size of silver particles supported on porous ceramic bead were range of $0.5{\sim}2.0\;{\mu}m$. The observed effects of the prepared Ag-impregnated beads on antibacterial activity are as follows : i) Antibacterial activity should be directly proportional to silver nitrate solution and reaction time. ii) The antibacterial activity against Escherichia coli was better than that against Staphylococcus aureus.
Keywords
Porous Ceramic Beads; Silver; Antibacterial Activity; E. coli; S. aureus; Ag;
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