纳米多孔铜银双金属的制备及其SERS性能  

Fabrication and surface-enhanced Raman scattering properties of a nanoporous copper-silver bimetal

作　　者：吴琳 张玲[2] 潘登 WU Lin;ZHANG Ling;PAN Deng(Materials Genome Institute,Shanghai University,Shanghai 200444,China;School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海大学材料基因组工程研究院,上海200444 [2]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《上海大学学报(自然科学版)》2025年第1期134-142,共9页Journal of Shanghai University:Natural Science Edition

摘　　要：纳米多孔双金属不仅具有独特的三维纳米结构,还可提供双金属协同光学特性,成为表面增强拉曼散射(surface-enhanced Raman scattering,SERS)的良好候选材料.以锆铜银非晶合金为前驱体,采用脱合金工艺制备纳米多孔铜银双金属SERS基底.具有均匀纳米孔隙的基底表现出优异的SERS性能,对罗丹明6G(rhodamine 6G,R6G)和结晶紫(crystal violet,CV)的检测限分别达到10^(−16)和10^(−10) mol/L.同时,所制备基底具有良好的均匀性和稳定性.简单、高效、低成本纳米多孔铜银的制备为高性能SERS基底的实现提供了新思路.Nanoporous bimetals have unique three-dimensional nanostructures and synergistic optical properties,making them good candidates for surface-enhanced Raman scat-tering(SERS).A nanoporous copper-silver bimetallic SERS substrate was prepared by a dealloying process using a zirconium-copper-silver amorphous alloy as the precursor.The substrate with uniform nanopores showed excellent SERS properties.The detection limits for rhodamine 6G(R6G)and crystal violet(CV)were 10^(−16) and 10^(−10) mol/L,respectively.The substrate also exhibited good uniformity and stability.The preparation of simple,efficient,and low-cost nanoporous copper-silver provides a new approach for the realization of high-performance SERS substrates.

关 键 词：表面增强拉曼散射 纳米多孔铜银双金属 超灵敏检测 

分 类 号：O469[理学—凝聚态物理]