▎ 摘　　要

In this work, silver nanoparticles/graphene oxide nanoscroll composites (Ag/GO nanoscroll composites) were fabricated by a one-step method at room temperature. The GO sheets were cut into pieces by the silver nanoparticles (AgNPs) due to their catalytic activity, and then the GO pieces rolled up resulting from the intermolecular hydrogen bonds. Transmission electron microscope images show that the Ag/GO nanoscroll composites have open-ended tubular hollow structures. The Escherichia coli (E. coli) was used to evaluate the antibacterial activity of synthesized nanoscroll composites. After against the E. coli for 3 days, the inhibition rate of Ag/GO nanoscroll composites can still up to 99.99%. This attributes to the open-ended tubular hollow structures, providing abundant channels and space to prevent AgNPs from aggregating and oxidizing. The result exhibits that the Ag/GO nanoscroll composites have the potential for long-lasting antibacterial activity. So, the Ag/GO nanoscroll composites can be applied in antibacterial materials for long-lasting use.