A continuous-flow technique was utilized for azide–alkyne cycloadditions catalyzed by copper on iron bimetallic system. An iron powder unit was used as a readily available copper scavenger, which turned into an
Nitrogen-rich porous carbon (NAC) material was synthesized from egg white biomass via pyrolysis, followed by chemical activation with KOH. Then, the copper nanoparticles were immobilized on the surface of the NAC by chemical reduction method.