Synthesis of triangular bimetallic nanoprisms for SPR mediated catalysis

• Grant number: 16/19432-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2016
• End date: October 31, 2017
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Pedro Henrique Cury Camargo
• Grantee: Karina Torre da Fonseca
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This research project has as an objetive the synthesis of Ag, Au and AgAu triangular bimetallic nanostructures with controlled size, morphology and composition. In this regard, simple metodologies will be used, environmentally friendly methods and able to generate structures with controlled compositions, as well as the preferencial deposition of Au on specific regions of the Ag templates. In a second moment, the produced nanostructures will be caractherized by the UV-Vis, SEM, TEM and ICP-OES techniques. Finally, all the materials will have their catalytic activities tested face to the Methylene Blue dye degradation reactions, mediated by SPR and via activated O2, in order to investigate the optical proprierties of the synthesized materials, as well as their catalytic efficiency face to this type of chemical transformation. It is supposed the bimetallic materials to have highlight on catalytic activity, once it is expected the synergism between the metals contributing to the improve of plasmonic efficiency.