Antimicrobial copper nanoparticles synthesized from waste printed circuit boards using advanced chemical technology.

摘要: Waste Printed Circuit Boards (WPCBs) were classified as one of the most important resources for urban mining containing high purity Copper (Cu) and other valuable materials. Recently, a dissolution recycling approach enhanced by ultrasonic treatment succeeded in liberation Cu foils from WPCBs received. This research aims to synthesize Nanoparticles (Cu-NPs) recovered using an advanced chemistry obtain nano-product with added value taking into consideration environmental risks. The experiments carried out on three types different (Motherboard, Video Card, Random Access Memory (RAM)). synthesis process was performed two stages: (a) preparation (II) Sulfate aqueous solutions (b) chemical reduction Cu-NPs Native Cyclodextrins (NCDs), particularly s-NCD stabilizers. efficiency developed raw material assessed final yield estimated recovery cost synthesized calculated accuracy well properties Cu-NPs. obtained examined SEM-EDS, TEM, XRD, Raman Spectroscopy, TGA. To maximize potential biomedical application benefits, antibacterial activity investigated standard microdilution method E. coli, P. aeruginosa, S. aureus bacterial cultures. results showed that produced had average size 7 nm 90%, while costs 6 times lower comparison commercial counterparts. In addition, indicated RAM sample good antimicrobial action.