银纳米粒子制备及SERS检测福美双  

Preparation of Ag Nanoparticles and Its Detection of Pesticide Thiram as a SERS Substrate

作　　者：王斌[1,2] 张莉[2] 

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001 [2]宿州学院自旋电子与纳米材料安徽省重点实验室培育基地,安徽宿州234000

出　　处：《宿州学院学报》2014年第1期90-93,共4页Journal of Suzhou University

基　　金：国家自然科学基金(21271136);宿州学院创新团队建设计划(2013kytd02)

摘　　要：柠檬酸钠还原法制备银纳米颗粒。通过紫外一可见吸收光谱（UV—Vis），X一射线衍射仪（FEXRD）和场发射扫描电子显微镜（SEM）对银纳米颗粒光学性质、结构和形貌进行表征，并用纳米粒度及Zeta电位分析仪测定其粒径分布。利用结晶紫作为探针分子表征了银纳米颗粒的SERS性能。利用表面增强拉曼光谱技术对农药福美双进行了检测。结果表明，银纳米颗粒粒径均匀，分布在35~45nm之间。银纳米颗粒作为SERS活性基底，具有很好的效果；同时，对农药福关双有很好的检测效果。The Ag nanoparticles were prepared by sodium citrate reduction method. UV-visible absorption spec- troscopy（UV-Vis）, X-ray diffraction （XRD） and field emission scanning electron microscopy （FESEM） were applied to characterize the optical property, structure and morphology of the Ag nanoparticles. Size distribution of Ag nanoparticles was detected by zeta potential analyzer. The SERS performance of the Ag nanoparticles was characterized by crystal violet （CV） as the probe molecules. Surface-Enhanced Raman Scattering technique was applied to detect pesticide thiram. The results show that even particle size was obtained and particle size ranged from thirty-five to forty-five of nanometers. The Ag nanoparticles had a good performance when they were used as the SERS-active substrate. Meanwhile, the pesticide thiram can be effectively detected in the pro- cess.

关 键 词：柠檬酸钠法 银纳米颗粒 SERS 福美双 

分 类 号：O614.122[理学—无机化学]