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Updated: Jun 14, 2026
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Gold Nanoparticle Synthesis
Published on: July 10, 2021
Shape-controlled synthesis of triangular gold nanoprisms using microwave irradiation
1Materials Science and Mechanical Engineering, Texas A & M University, College Station, TX 77843-3123, USA.
Journal of Nanoscience and Nanotechnology
|April 1, 2010
Summary
This study presents a rapid microwave-assisted synthesis of gold nanoprisms using 2-naphthol (2-N) as a novel reducing agent. Particle size and shape are controllable by adjusting reactant ratios, enabling versatile nanomaterial fabrication.
Area of Science:
- Nanotechnology
- Materials Science
- Chemistry
Background:
- Gold nanoparticles have diverse applications in catalysis, medicine, and electronics.
- Controlling the size and shape of nanoparticles is crucial for optimizing their properties.
- Existing synthesis methods can be time-consuming and complex.
Purpose of the Study:
- To develop a rapid and efficient method for synthesizing gold nanoprisms.
- To investigate the role of 2-naphthol as a reducing agent in gold nanoparticle formation.
- To demonstrate control over nanoparticle size and shape through reactant molar ratios.
Main Methods:
- Microwave heating for 60-90 seconds.
- Use of 2-naphthol (2-N) as a novel reducing agent.
- Varying surfactant-to-metal-ion molar ratio and 2-N concentration.
Main Results:
- Successfully synthesized gold nanoprisms with an average diameter of 110 +/- 10 nm.
- Demonstrated that particle shape (spherical, polygonal, triangular/prisms) is dependent on reactant ratios.
- Achieved tunable particle size and shape by adjusting molar ratios.
Conclusions:
- A very fast and effective method for gold nanoprism synthesis was established.
- The method offers control over nanoparticle morphology.
- This approach is potentially extendable to other nanomaterials for various applications.
