基于快速退火制备纳米金SERS基底的罗丹明B和罗丹明6G痕量检测  

Trace Detection of Rhodamine B and Rhodamine 6G Based on NanogoldSERS Substrate Prepared by Rapid Annealing

作　　者：张紫瑞 汪燕青 马自明 马英剑 李小龙 Zhang Zirui;Wang Yanqing;Ma Ziming;Ma Yingjian;Li Xiaolong(School of Physics and Electronic-Electrical Engineering,Ningxia University,Yinchuan 750021,China)

机构地区：[1]宁夏大学物理与电子电气工程学院,宁夏银川750021

出　　处：《宁夏大学学报（自然科学版）》2021年第4期408-411,共4页Journal of Ningxia University(Natural Science Edition)

基　　金：宁夏自然科学基金资助项目(2020AAC03072);国家级大学生创新创业训练计划基金资助项目(2019107490026)。

摘　　要：通过扫描电镜喷金仪和退火工艺制备简单、实用的表面增强拉曼散射(SERS)基底.在石英表面溅射出5 nm厚金膜,然后置于真空快速退火炉中,在900℃下进行5 min快速退火,制得纳米金阵列.经检测,纳米金的平均粒径为(79.9±24.5)nm,且分布紧密,热点密集.将该基底用于检测罗丹明B和罗丹明6G溶液的拉曼信号,检测限可达10^(-6)mol/L,具有较高的实用价值.The article is to prepare simple and practical surface-enhanced Raman scattering(SERS)substrates by scanning electron microscopy(SEM)gold spraying and annealing process.A 5-nm-thick gold film was sputtered on the quartz surface and the sample was then placed in a vacuum rapid annealing furnace for 5-min rapid annealing at 900℃to prepare nanogold arrays on this substrate.With tight distribution and dense hot spots,the average particle size of nanogold is(79.9±24.5)nm.The detection limits can reach 10^(-6) mol/L when the substrate is used to detect the Raman signal of rhodamine B and rhodamine 6G solutions,which is of high practical value.

关 键 词：快速退火 表面增强拉曼散射 罗丹明 

分 类 号：O469[理学—凝聚态物理] O433[理学—电子物理学]