摘要
采用原位还原法成功合成了Cu2O-Ag纳米复合材料.通过调节AgNO3的浓度,成功控制了Ag纳米粒子在Cu2O纳米球表面的负载量.利用X射线衍射(XRD)、X射线光电子能谱(XPS)、紫外分光光度计(UV-Vis)对Cu2O-Ag纳米复合材料的结构和物理性质进行了表征,并以4-巯基苯甲酸(4-MBA)作为拉曼探针分子,对比了不同Ag负载量的Cu2O-Ag纳米复合材料作为SERS基底时的拉曼增强效果.结果表明,负载银量最高的Cu2O-Ag3纳米复合材料表现出了最高的SERS活性.
The Cu2O-Ag nanocomposites were successfully prepared through an in-situ reduction method.The content of Ag nanoparticles modified on the surfaces of Cu2O nanospheres could be controlled by modulating the concentrations of AgNO3 in the synthesis process.X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS)and ultraviolet-visible light detector(UV-Vis)were used to characterize the structure and physical properties of Cu2O-Ag nanocomposites.Raman signal enhancement effect of Cu2O-Ag nanocomposites with different Ag loading contents was compared by using 4-mercaptobenzoic acid(4-MBA)as Raman probe molecule.The results showed that the Cu2O-Ag3 with the highest Ag loading content exhibited the strongest SERS properties.
作者
刘洪波
陆佳宁
金师磊
郑惠
周天香
黄杰
刘洋
LIU Hong-bo;LU Jia-ning;JIN Shi-lei;ZHENG Hui;ZHOU Tian-xiang;Huang Jie;LIU Yang(College of Physics,Jilin Normal University,Siping 136000,China)
出处
《吉林师范大学学报（自然科学版）》
2020年第3期17-21,共5页
Journal of Jilin Normal University:Natural Science Edition
基金
国家自然科学基金项目(21676115)
吉林省科技发展计划项目(JJKH20200418KJ)
吉林省教育厅“十三五”科学技术研究规划项目(JJKH20200418KJ)。
