发光学报, 2017, 38 (3): 316, 网络出版: 2017-04-10
Ag纳米颗粒的引入方式对TiO2三维有序多孔/Ag复合结构SERS性能的影响
Effect of Introduction Style of Ag Nanoparticles on SERS Properties of TiO2 Three-dimensionally Ordered Porous/Ag Composite Nanostructures
氧化钛 有序多孔结构 表面增强拉曼光谱技术 TiO2 three-dimensionally ordered porous TiO2 nanostruct Ag Ag surface-enhanced Raman spectroscopy(SERS)
摘要
用PS(聚苯乙烯)微球作为模板制备出TiO2三维多孔有序结构(TiO2-3DOM), 在此基础上, 着重探究了银纳米颗粒的引入方式对整个TiO2三维多孔/Ag复合结构SERS性能的影响。研究表明, 通过银镜反应得到的TiO2三维多孔/Ag复合结构是一种灵敏性强的基底, 对罗丹明(R6G)分子的检测极限可低至10-10 mol/L。
Abstract
Surface-enhanced Raman spectroscopy(SERS) is a high sensitive detecting technology, which is very promising in chemical and biological analyzing applications. Noble metals which own the unique characteristic of localized surface plasmon resonance and the substrates are two important factors. In this paper, we used PS (polystyrene) spheres as templates to fabricate three-dimensionally ordered TiO2 nanostructure (TiO2-3DOM) and investigated the influence of the way to combine Ag nanoparticles with TiO2-3DOM on its SERS performance. The results tell that TiO2-3DOM/Ag obtained through silver mirror reaction is a very sensitive substrate, its detecting limitation to Rhodamine 6G (R6G) can reach 10-10 mol/L.
李秀华, 林健. Ag纳米颗粒的引入方式对TiO2三维有序多孔/Ag复合结构SERS性能的影响[J]. 发光学报, 2017, 38(3): 316. LI Xiu-hua, LIN Jian. Effect of Introduction Style of Ag Nanoparticles on SERS Properties of TiO2 Three-dimensionally Ordered Porous/Ag Composite Nanostructures[J]. Chinese Journal of Luminescence, 2017, 38(3): 316.