Studies on antibacterial and micropore filling propertiesof activated carbon fibers supported with silver metal

摘要

Activated carbon fibers (ACFs) supported with silver are prepared by immersion process in AgNO3 solution, inorder to prevent ACFs from contaminating by microbe. And the effects of micropore filling by silver particles andits antibacterial activity are investigated in BET methods and dilution test against Staphylococcus aureus (S.Aureus; gram positive and virulence) and Escherichia coli (E. coli; gram negative and avirulence). From theexperimental results, the ACFs exhibit a decreased BET's specific surface area after supporting silver particles. Asexpected, in the case of the ACFs treated with higher concentration of AgNO3, Ag is more adsorbed compared tothat of lower concentration by micropore filling. The ACFs immersed in 1.0% AgNO3 show a strong antibacterialactivity against both strains, S. aureus and E. coli.