Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Preparation of Ag-impregnated Porous Ceramic Beads and Antibacterial Properties

Ag 담지 다공성 세라믹 비드 제조 및 항균 특성

  • 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)
  • 서원학 (한양대학교 지구환경시스템공학과) ;
  • 한요섭 (한양대학교 지구환경시스템공학과) ;
  • 정영 ((주)마이크로포어) ;
  • 박재구 (한양대학교 지구환경시스템공학과)
  • Published : 2005.05.31
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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.

골격 구조를 가진 다공성 세라믹 비드에 질산은 용액을 이용하여 Ag를 담지 하였으며, Ag 담지된 비드의 대장균, 포도상구균에 대한 항균 특성을 평가하였다. 또한, 상용화된 Ag-활성탄과 항균 특성에 대해 비교실험도 진행하였다. 질산은 용액의 농도가 높을수록, 비드의 내 외부 표면의 Ag 함량이 증가하였으며, 담지된 Ag 입자의 크기는 $0.5{\sim}2.0\;{\mu}m$ 범위로 나타났다. Ag 담지된 비드의 항균 특성은 다음과 같이 관찰되었다 : i) 질산은 용액 농도 및 반응시간이 증가할수록 높은 활성을 나타내었다. ii) 포도상구균에 비해 대장균의 경우 더 좋은 제거율을 나타내었다.

Keywords

References

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