Synthesis of silver/silver chloride/graphene oxide composite and its surface-enhanced Raman scattering activity and self-cleaning property

2017 3rd International Conference on Applied Materials and Manufacturing Technology

Zhao, Nan^1,2 ; Fei, Xiao^1 ; Cheng, Xiaonong^2 ; Yang, Juan^2,3

Jingjiang College of Jiangsu University, Zhenjiang

212013, China^1

School of Materials Science and Engineering, Jiangsu University, Zhenjiang

212013, China^2

Key Laboratory of Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Ministry of Education, Nanjing

210094, China^3

关键词: Colloidal solutions;    Electrostatic self-assembly methods;    Enhancement factor;    Hydrothermal methods;    Macromolecular compounds;    Photocatalytic activities;    Self-cleaning properties;    Surface enhanced Raman Scattering (SERS);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/242/1/012002/pdf
DOI  :  10.1088/1757-899X/242/1/012002

来源: IOP

【 摘 要 】

Recently, silver nanoparticles decorated with graphene and graphene oxide (GO) sheets can be employed as surface-enhanced Raman scattering (SERS) substrates. However, their SERS activity on macromolecular compound detection is all one-time process. In order to solve this issue and decrease the cost of routine SERS detection, silver/silver chloride (Ag/AgCl) with photocatalytic activity under visible light was introduced. In this study, a novel, simple and clean approach is carried out for synthesis of the Ag/AgCl/GO composite. The Ag/AgCl colloidal solution is obtained by hydrothermal method and then mixed with GO solution to obtain the Ag/AgCl/GO composite using a facile electrostatic self-assembly method. Results showed that the Ag/AgCl/GO composite has the optimized SERS activity to Rhodamine 6G molecules with the maximum enhancement factor value of 3.8×107. Furthermore, the Ag/AgCl particles with high efficient and stable photocatalytic activity under visible light lead to an outstanding self-cleaning property of the Ag/AgCl/GO composite.