Fe<sub>2</sub>O<sub>3</sub>@Ag纳米棒复合阵列的构筑及其SERS性能研究

范婷婷; 黄小巧; 吴康; 蔡莉; 李中波

doi:doi:10.13883/j.issn1004-5929.202203001

光散射学报, 2022, 34 (3): 187, 网络出版: 2023-02-04

Fe₂O₃@Ag纳米棒复合阵列的构筑及其SERS性能研究

Preparation of Ordered Fe₂O₃@Ag nanorod arrays for Surface-enhanced Raman Scattering

论文大纲

范婷婷 ^*黄小巧吴康蔡莉李中波

作者单位

安徽农业大学轻纺工程与艺术学院, 合肥 241000

水热法 PAN纳米柱阵列氧化铁纳米棒 Ag纳米颗粒 hydrothermal method PAN nanopillar array Fe2O3 nanorods Ag nanoparticles SERS SERS

摘要

以均匀有序的聚丙烯腈(PAN)纳米柱阵列薄膜为基材, 结合水热法以及离子溅射方法制备大面积有序的Fe2O3@Ag纳米棒复合结构阵列。利用扫描电子显微镜、透射电子显微镜、能谱仪、紫外可见光吸收光谱仪、X射线衍射仪以及拉曼光谱仪对复合材料进行表征。以罗丹明6G(R6G)和4-氨基苯硫酚(4-ATP)为探针分子, 对结构阵列的表面增强拉曼散射(SERS)性能进行研究。结果表明,制备的结构阵列具有较高的SERS活性和信号均匀性, 对R6G和4-ATP可以实现10-10 M和10-9 M低浓度探测。以10-6 M的4-ATP为探针分子, 计算得到基底的SERS信号相对标准偏差(RSD)值为7.5%。所制备的复合结构在SERS检测中具有良好的潜力。

Abstract

Large area ordered Fe2O3@Ag nanorod arrays were prepared via hydrothermal method and ion sputtering method based on the uniformly ordered polyacrylonitrile (PAN) nanopillar array films. The morphology and structure of the substrate were characterized by scanning electron microscope, transmission electron microscope, energy dispersive spectrometer, UV-Vis absorption spectrometer and X-ray diffractometer. The SERS activity of the Fe2O3@Ag nanorod arrays was studied by Raman spectrometer with rhodamine 6G (R6G) and 4-Aminothiophenol (4-ATP) as probe molecules. As a result, 10-10 M R6G and 10-9 M 4-ATP can be SERS recognized respectively. In addition, with 10-6 M 4-ATP as the probe molecule, the relative standard deviation (RSD) of SERS signal is 7.5%, which shows that the prepared substrate has high SERS activity and signal uniformity. Therefore, the prepared ordered Fe2O3@Ag nanorod arrays have great potential in SERS detection.

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范婷婷, 黄小巧, 吴康, 蔡莉, 李中波. Fe₂O₃@Ag纳米棒复合阵列的构筑及其SERS性能研究[J]. 光散射学报, 2022, 34(3): 187. FAN Tingting, HUANG Xiaoqiao, WU Kang, CAI Li, LI Zhongbo. Preparation of Ordered Fe₂O₃@Ag nanorod arrays for Surface-enhanced Raman Scattering[J]. The Journal of Light Scattering, 2022, 34(3): 187.

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