摘要
用PS(聚苯乙烯)微球作为模板制备出TiO_2三维多孔有序结构(TiO_2-3DOM),在此基础上,着重探究了银纳米颗粒的引入方式对整个TiO_2三维多孔/Ag复合结构SERS性能的影响。研究表明,通过银镜反应得到的TiO_2三维多孔/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10-10mol/L。
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-dimension- ally ordered TiO2 nanostructure （TiO2-3DOM） and investigated the influence of the way to combine Ag nanopartieles 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 Rhoda- mine 6G （R6G） can reach 10^-10 mol/L.
作者
李秀华
林健
LI Xiu-hua LIN Jian(Key Laboratory of Advanced Civil Engineering Materials, School of Materials Science and Engineering, Tongdi University, Shanghai 200092, Chin)
出处
《发光学报》
EI
CAS
CSCD
北大核心
2017年第3期316-323,共8页
Chinese Journal of Luminescence
关键词
氧化钛
有序多孔结构
AG
表面增强拉曼光谱技术
TiO2
three-dimensionally ordered porous TiO2 nanostructure
Ag
surface-enhanced Raman spectrosco-py （ SERS ）
