Abstract This study presents a novel synthesis method for the production of reduced-graphene-oxide functionalized with gold nanoparticles (rGO/Au-NPs) at ambient temperature. Both were obtained simultaneously using sucrose and chloroauric acid as precursors in the formation of the nanocomposite, and ascorbic acid as the reducing and stabilizing agent. Transmission electron microscopy (TEM) showed gold nanoparticles of 15–30 nm interacting with rGO laminates. Raman spectroscopy showed bands D and G centered at 1334 cm −1 and 1577 cm −1 , respectively. The optical absorption analysis presented two bands centered at 522 nm and 260 nm, similar to the results reported in literature for Au-NPs and rGO.

中文翻译：

---

在环境条件下一步合成还原氧化石墨烯/金纳米粒子

摘要 本研究提出了一种新的合成方法，用于在环境温度下生产用金纳米粒子 (rGO/Au-NPs) 功能化的还原氧化石墨烯。两者都是使用蔗糖和氯金酸作为形成纳米复合材料的前体，以及作为还原剂和稳定剂的抗坏血酸同时获得的。透射电子显微镜 (TEM) 显示 15-30 nm 的金纳米粒子与 rGO 层压板相互作用。拉曼光谱显示带D和G分别以1334 cm -1 和1577 cm -1 为中心。光吸收分析呈现两个以 522 nm 和 260 nm 为中心的波段，类似于文献中报道的 Au-NPs 和 rGO 的结果。