Preparation and Characterization of an Antibrowning Nanosized Ag-CeO2 Composite with Synergistic Antibacterial Ability

Nanosized Ag and CeO2 particles obtained through the hydrothermal method were physically mixed to obtain composite antibacterial agents. The comparative experiments of properties showed that activity nanocomposites was improved compared nanoparticles alone, which indicated synergistic effect existed between CeO2. On one hand, ICP-MS results existence suppressed silver ion release rate provided with ability antibrowning; on other, EPR data more hydroxyl radicals (·OH) generated by interfacial interaction nanosized Hence, for Ag-CeO2 agent, played an important role in causing bacterial death.