Zhao, Nan 1;Fei, Xiao 2;Cheng, Xiaonong 3;Yang, Juan 4 1 Jingjiang College of Jiangsu University, 212013, China, School of Materials Science and Engineering, Jiangsu University, 212013, China 2 Jingjiang College of Jiangsu University, 212013, China 3 School of Materials Science and Engineering, Jiangsu University, 212013, China 4 School of Materials Science and Engineering, Jiangsu University, 212013, China, Key Laboratory of Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Ministry of Education, 210094, China email@example.com
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.