There is considerable interest in understanding the catalytical, antibacterial, and photo-thermal properties of Ag nanoparticles. Herein, a simple, scalable and effective method is explored to generate Ag nanoclusters (∼3.57 nm) directly on reduced graphene oxide (rGO) (denoted as AgNC/GSH-rGO) using glutathione (GSH) as a green and mild co-reduction agent. Due to the good electrical conductivity of rGO, the extremely small particle size of Ag nanoclusters and the synergistic effect between Ag nanoclusters and rGO, high catalytic activity for reduction of 4-nitrophenol is achieved for AgNC/GSH-rGO at a very low Ag nanoclusters loading of 8.67 wt% on rGO. The conversion could reach 96.69% in 16 min and the apparent rate constant based on rGO is derived to be 0.55 min⁻¹ when the concentration of AgNC/GSH-rGO is 0.04 mg mL⁻¹. Moreover, the AgNC/GSH-rGO nanohybrids are also proven to be an efficient antibacterial and photothermal ablation agent for avoiding wound infection and cancer therapy applications.

人们对了解Ag纳米颗粒的催化，抗菌和光热性能非常感兴趣。本文探索了一种简单，可扩展且有效的方法，以谷胱甘肽（GSH）作为绿色和温和的共还原反应，在还原的氧化石墨烯（rGO）（表示为AgNC / GSH-rGO）上直接生成Ag纳米团簇（〜3.57 nm）。代理人。由于rGO的良好电导率，极小的Ag纳米团簇以及Ag纳米团簇与rGO的协同作用，在非常低的Ag纳米团簇中，AgNC / GSH-rGO达到了还原4-硝基苯酚的高催化活性。 rGO负载量为8.67 wt％。16分钟内转化率可达到96.69％，基于rGO的表观速率常数推导为0.55 min ^-1当AgNC / GSH-rGO的浓度为0.04mgmL ^-1时。此外，AgNC / GSH-rGO纳米杂交体也被证明是一种有效的抗菌和光热消融剂，可避免伤口感染和癌症治疗应用。