| 초록 |
Hybrid nanostructures comprising plasmonic noble metal and semiconductor have attracted attention owing to their novel properties and potential applications. However, the facile synthesis of these hybrid nanostructures with well-defined heterostructures still remains challenging. Preparation of noble metal nanoparticles depends on the reduction rate of the metal precursor. By controlling the kinetical parameters, thick hexagonal or thin triangular silver (Ag) nanoplates can be obtained. Herein, a simple and rapid synthetic approach based on site-selective sulfidation of Ag nanoplates was developed to prepare Ag–Ag2S with new heterostructures. Moreover, porous Au–Ag–Ag2S bimetal–semiconductor hybrid nanostructures can be developed by adding a secondary reducing agent into the galvanic replacement reaction of Ag–Ag2S with HAuCl4 solution. These hybrid nanostructures exhibited enhanced catalytic performance, photocatalytic activity, and high photothermal conversion properties. |
