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通过原位复合的方法,在石墨烯片层间掺杂纳米银颗粒,制备出石墨烯/银纳米杂化材料(RGO/Ag)。利用紫外吸收光谱、傅里叶红外光谱、透射电子显微镜(TEM)、XRD、拉曼光谱等对氧化石墨烯(GO)、还原氧化石墨烯(RGO)和石墨烯/银纳米杂化材料(RGO/Ag)进行表征。发现复合材料中的银对石墨烯/银材料有拉曼增强作用,结合TEM对这种增强作用进行研究,发现银颗粒的团聚对这种增强作用有减弱作用。
The graphene / Ag nanocomposite (RGO / Ag) was prepared by in-situ recombination method by doping the graphene sheets with Ag nanoparticles. The graphene oxide (GO), reduced graphene oxide (RGO) and graphene / silver nano hybrid material (RGO) were characterized by UV absorption spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy (TEM), XRD and Raman spectroscopy. / Ag). It was found that the silver in the composite material had a Raman enhancement effect on the graphene / silver material. The enhancement effect was studied by TEM. It was found that the aggregation of the silver particles had a weakened effect on this enhancement effect.