Synthesis of phenolic precursor-based porous carbon beads in situ dispersed with copper–silver bimetal nanoparticles for antibacterial applications

摘要: Abstract Copper (Cu) and silver (Ag) bimetal-dispersed polymeric beads (∼0.7 mm) were synthesized by suspension polymerization using phenol formaldehyde monomers. The Cu:Ag bimetal nanoparticles (Nps) incorporated into the matrix at incipience of gel formation during an anionic surfactant. prepared bimetal-doped carbonized, activated steam, reduced in a hydrogen atmosphere to produce metal Nps-doped porous carbon beads. (Cu Ag) exhibited significantly larger anti-bacterial activities than single-(Cu or metal-doped for both gram-positive Staphylococcus aureus gram-negative Escherichia coli bacteria. materials contained total optimized amounts Cu Ag. These smaller (approximately half) amount single required preparing single-metal-doped Although Nps exhibit lesser antibacterial activity Ag Nps, it enhanced porosity remained effective 120 h, completely inhibiting bacterial growth, therefore, they are potential agents water purification.