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采用Frens法制备金纳米粒子溶胶,通过界面自组装技术在掺磷的非晶碳衬底表面构筑三维的金/氧化石墨烯/金复合结构.以罗丹明B为探针分子,考察金/氧化石墨烯/金复合材料的表面增强拉曼散射活性.结果表明,由于氧化石墨烯的化学增强和金纳米粒子的电磁场增强的协同作用,在该三维复合材料上获得了很强的罗丹明B拉曼信号.所设计的三维金/氧化石墨烯/金复合材料在生物分析、环境监测、疾病防控、食品安全等领域具有潜在的应用价值.
The gold nanoparticle sol was prepared by Frens method and the three-dimensional gold / graphene oxide / gold composite structure was formed on the surface of phosphorus-doped amorphous carbon substrate by interfacial self-assembly technique. Rhodamine B was used as probe molecule to investigate the effect of gold / Graphene / gold composites.The results show that due to the synergistic effect of the chemical strengthening of graphene oxide and the electromagnetic field enhancement of gold nanoparticles, a strong rhodamine B pull has been obtained on the three-dimensional composite Man signal. The designed 3D gold / graphene oxide / gold composite has potential applications in bioanalysis, environmental monitoring, disease prevention and control, food safety and other fields.