Study of Anti-bacterial Properties for Impregnated Activated Carbon by Silver Nano-particles

은나노 입자가 첨착된 활성탄의 항균특성에 관한 연구

  • Lee, Chul-Jae (Division of Chemical Industry, Yeungnam College of Science & Technology) ;
  • Kim, Dong-Yeub (Division of Chemical Industry, Yeungnam College of Science & Technology) ;
  • Kim, Byung-So (Division of Chemical Industry, Yeungnam College of Science & Technology)
  • 이철재 (영남이공대학 화장품.화공계열) ;
  • 김동엽 (영남이공대학 화장품.화공계열) ;
  • 김병소 (영남이공대학 화장품.화공계열)
  • Received : 2007.01.05
  • Accepted : 2007.06.07
  • Published : 2007.08.10


In present work, the anti-bacterial effect of silver/activated carbon (Ag/C) composites prepared by the ${\gamma}$-irradiation of $AgNO_3$ solution on Escherichia coli (E. coli) has been studied. Characteristics of the Ag/C composites were identified by scanning electron microscopy (SEM), X-ray diffraction (XRD) and atomic absorption spectroscopy (AAS). The inhibitory concentration of E. coli was found to be 0.387 ppm and the sterilizing concentration for the tested organism was 1.017 ppm. These results support the evidence that Ag/C composites have strong antibacterial activity to E. coli.


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