| 초록 |
Ag@AgBr nanoparticles were synthesized via an aqueous, one-pot route. In this study, poly(vinyl alcohol) (PVA) acted as a stabilizer for the formation of nano-sized AgBr composites through interaction with Ag ions and their hydroxyl groups. The mild reducing agent L-arginine was used for partial reduction of AgBr to form metallic Ag nanoparticles on the AgBr surface. The metallic Ag nanoparticles improved light absorption in the visible region due to surface plasmon resonance (SPR). The size of the synthesized nanoparticles was controlled by controlling the reaction temperature, and had an effect on the light absorption of Ag@AgBr nanocomposites. The prepared Ag@AgBr nanoparticles exhibited excellent photocatalytic activities under both visible light and direct sunlight. |
