Synergistic effect of ZnO nanoparticles and benzyl piperazine on MWCNTs for anti-microbial activity and energy applications

Zinc oxide/multi-walled carbon nanotubes (ZnO/MWCNTs) Benzyl piperazine nanocomposite fabricating and its potential applications for water splitting and antimicrobial activity evaluation are discussed in this research. Green synthesis of zinc oxide nanoparticles (ZnO NPs) was done by aqueous cinnamon bark powder using a hydrothermal method on the surface of multi-walled carbon nanotubes-benzyl piperazine derivative to form the nanocomposite. Compared to bare zinc oxide nanoparticles, the nanocomposite shows superior antioxidant and antibacterial activities. Time leads to enhancing antioxidant properties; at 1 min, an increased amount was recorded in a crude extract of AM-2 for 30 min. The MFC values of our crude extracts have shown up to 10 mm and more than 10 mm zone of inhibition against S. aureus, P. aeruginosa, S. typhimurium, B. subtilis and E. coli at concentrations of 60μL/disc. The zinc oxide/multi-walled carbon nanotubes (ZnO/MWCNTs) piperazine nanocomposite, when subjected to a current density of 10 mA cm⁻², the electrode exhibited the optimal overpotential (330 mV) for oxygen evolution reaction (OER) and (278 mV) for hydrogen evolution reaction (HER). These findings imply that the zinc oxide/multi-walled carbon nanotubes (ZnO/MWCNTs) benzyl piperazine nanocomposite has high bioactive effectiveness and significant promise for water-splitting applications.