Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Antimicrobial Properties of PET/(Nano-TiO2) Composite Films Prepared by Photocatalytic Deposition of Silver

나노 은을 광증착시킨 폴리(에틸렌 테레프탈레이트)/나노-TiO2 복합체의 항균특성 연구

  • Jo, Seong-Min (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Jhee, Kwang Hwan (Department of Applied Chemistry, Kumoh National Institute of Technology) ;
  • Kim, Jung Hyun (Department of Applied Chemistry, Kumoh National Institute of Technology) ;
  • Kwon, Oh Kyung (B.S.G. Co.) ;
  • Lim, Sang Kyoo (Daegu Gyeongbuk Institute of Science and Technology) ;
  • Min, Byung Gil (Department of Materials Design Engineering, Kumoh National Institute of Technology)
  • 조성민 (금오공과대학교 소재디자인공학과) ;
  • 지광환 (금오공과대학교 응용화학과) ;
  • 김정현 (금오공과대학교 응용화학과) ;
  • 권오경 ((주)비에스지) ;
  • 임상규 (대구경북과학기술원) ;
  • 민병길 (금오공과대학교 소재디자인공학과)
  • Received : 2012.11.08
  • Accepted : 2012.12.02
  • Published : 2012.12.31
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Abstract

Nanocomposite films of poly(ethylene terephthalate)(PET) and nano titania($TiO_2$) were prepared by melt compounding with a twin-screw extruder followed by hot pressing for the purpose of investigating antibacterial activity. FE-SEM, EDS and XRD measurements confirmed that nano $TiO_2$ was successfully dispersed at the level of individual particles in the PET matrix. Silver was introduced through photocatalytic reduction by nano $TiO_2$ under UV (254 nm) irradiation to the nanocomposite films after being immersed in aqueous solution $AgNO_3$ (100 ppm Ag ion). Even at 1 wt% of $TiO_2$ content, the nanocomposite with silver photodeposition exhibited strong antimicrobial activity against Klebsiella pneumoniae and Staphylococcus aureus in measurement by shaking flask method.

Keywords

Acknowledgement

Supported by : 금오공과대학교

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