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Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
Direct nucleation of silver nanoparticles on graphene sheet
Manoj K Singh1, E Titus, R Krishna
1Centre for Mechanical Technology and Automation, University of Aveiro, Aveiro, 3810-193, Portugal.
Journal of Nanoscience and Nanotechnology
|September 12, 2012
Summary
Silver nanoparticles were synthesized on graphene oxide using hydrazine hydrate. The resulting G-Ag nanocomposite, featuring 5-10 nm silver nanoparticles, shows potential for photovoltaic, catalysis, and biosensor applications.
Area of Science:
- Materials Science
- Nanotechnology
- Chemistry
Background:
- Graphene oxide (GO) is a promising material for various applications.
- Synthesizing metal nanoparticles on graphene sheets enhances its properties.
- Controlling nanoparticle size and distribution is crucial for performance.
Purpose of the Study:
- To synthesize silver (Ag) nanoparticles on graphene oxide (GO) sheets.
- To characterize the structure and morphology of the synthesized G-Ag nanocomposite.
- To evaluate the potential applications of the G-Ag nanocomposite.
Main Methods:
- Simultaneous reduction of Ag+ and GO using hydrazine hydrate.
- Preparation of GO via chemical exfoliation.
- Characterization using FTIR, SEM, and TEM (including HRTEM).
Main Results:
- Successful synthesis of G-Ag nanocomposite with Ag nanoparticles nucleated on graphene.
- FTIR confirmed the reduction of GO and interaction with Ag.
- SEM and TEM revealed Ag nanoparticles with an average size of 5-10 nm on the graphene surface.
Conclusions:
- The G-Ag nanocomposite was successfully synthesized and characterized.
- The material demonstrates potential for diverse applications, including photovoltaics, catalysis, and biosensors.
- The study highlights the efficacy of hydrazine hydrate for creating Ag-decorated graphene nanomaterials.
