单壁碳纳米管与银纳米颗粒合成的SERS基底的制备及应用  

Preparation and application of surface enhanced Raman scattering substrate synthesized from single walled carbon nanotubes and silver nanoparticles

作　　者：丁建军[1,2] 叶力 郭乃宇 余林波 曹勉 苗隆鑫 孙超[1] DING Jianjun;YE Li;GUO Naiyu;YU Linbo;CAO Mian;MIAO Longxin;SUN Chao(Intelligent Manufacturing Institute of Jianghan University,Wuhan 430000,China;State Key Laboratory of Precision Blasting,Jianghan University,Wuhan 430000,China)

机构地区：[1]江汉大学智能制造学院,武汉430000 [2]江汉大学省部共建精细爆破国家重点实验室,武汉430000

出　　处：《分析试验室》2023年第8期1002-1006,共5页Chinese Journal of Analysis Laboratory

基　　金：国家重点研发计划基金(2018YFD1100104);湖北省重点研发计划基金(2020BCA084);湖北省重点培育学科控制科学与工程基金(2020XK015);江汉大学校级科研基金(2021yb153)资助。

摘　　要：通过水热合成法,在单壁碳纳米管(SWCNTs)上生长均匀排列的银纳米颗粒,合成了具有复合开放结构的二氧化硅/碳纳米管/银纳米颗粒(SiO_(2)/CNTs/AgNPs)表面增强拉曼(SERS)基底,并利用透射电子显微镜(TEM)对合成的SiO_(2)/CNTs/AgNPs进行了表征。以罗丹明6G(R6G)作为探针分子,基底的增强因子(EF)为1.23×10^(8),标准差为2.31。以常见的水体污染物苯酚红作为实际样品,苯酚红浓度在1×10^(-4)~1×10^(-10)mol/L范围内与其在1153 cm^(-1)和1441 cm^(-1)处的拉曼信号强度有良好的指数拟合关系,相关系数R^(2)=0.99991。此基底可用于实际样品的定性及定量检测。By hydrothermal synthesis,silver nanoparticles(AgNPs)arranged on single-walled carbon nanotubes(SWCNTs)uniformly,and a SiO_(2)/CNTs/AgNPs surface enhanced Raman scattering(SERS)substrate with composite open structure was prepared.The synthesized SiO_(2)/CNTs/AgNPs were characterized by transmission electron microscopy(TEM).Using rhodamine 6G(R6G)as the probe molecule,the enhancement factor(EF)was 1.23×10^(8),and the standard deviation was 2.31.Taking the phenol red,a common water pollutant,as the practical sample,the concentration of phenol red in the range of 1×10^(-4)~1×10^(-10)mol/L had a great exponential fitting relationship with its Raman signal intensity at 1153 cm^(-1)and 1441 cm^(-1),and the correlation coefficient(R^(2))was 0.99991.The substrate can realize the qualitative and quantitative detection of practical samples.

关 键 词：表面增强拉曼光谱 单壁碳纳米管 银纳米颗粒 拉曼检测 

分 类 号：O657.3[理学—分析化学]