金纳米花粒子的制备及其表面增强拉曼散射效应的研究  

Preparation of Gold Nanoflower Particles and Study of Their Surface Enhanced Raman Scattering Effect

作　　者：顾慈勇 孟德龙 李李琳 GU Ci-yong;MENG De-long;LI Lin(College of Science,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学物理学院,南京210016

出　　处：《电光系统》2023年第2期29-32,共4页Electronic and Electro-optical Systems

摘　　要：文章研究了一种简便的以种子介导方法合成金纳米花粒子(Flower-like Gold Nanoparticles,FGN)的方法。通过透射电子显微镜(TEM)和紫外-可见(UV-Vis)吸收光谱对样品进行表征,由测试结果可知金纳米花的表面具有大量的尖端。以罗丹明6G(R6G)为拉曼探针分子,探究了金纳米花粒子的表面增强拉曼散射(SERS)效应,发现该基底对R6G的检测限达到10^(-7)M,增强因子为2.39×10^(5)。此外,通过对溶液中的孔雀石绿(MG)残留进行SERS检测,发现所有的MG拉曼特征峰均被识别。该方法具有成本低,样品消耗少,快速和无损测量等优点,为溶液中污染物的快速测量与研究提供了参考。In this paper,we report a facile,seed-mediated method for the synthesis of flower-like gold nanoparticles(FGN).The samples were analyzed and characterized by transmission electron microscopy(TEM)and ultraviolet-visible(UV-Vis)absorption spectroscopy,and the test results showed that the FCN have a large number of tips on the surface.The surface-enhanced Raman scattering(SERS)effect of the FGN was investigated using rhodamine 6G(R6G)as the Raman probe molecule,and it was found that the detection limit of the FGN substrate for R6G reached 10^(-7)M with an enhancement factor of 2.39×10^(5).In addition,we performed SERS detection of malachite green(MG)residues in solution and found that all MG Raman characteristic peaks were identified.This method has the advantages of low cost,low sample consumption,rapid detection,and nondestructive measurement,which provides a reference for the identification of contaminants in solution for rapid detection.

关 键 词：表面增强拉曼光谱 金纳米花 R6G孔雀石绿 

分 类 号：TN06[电子电信—物理电子学]