Spectroscopy Study of Silver Nanoparticles Produced by Chemical Reduction

Abstract:

In this study, Ag nanoparticles were synthesized using two chemical reduction agents; ethylene glycol and sodium borohydride. Different particle size distributions were obtained and characterized by transmission electron microscopy. Ag nanoparticles concentrations of 1, 2 and 4 parts per million (gmL^-1) were prepared and studied by ultraviolet-visible spectroscopy (UV-Vis) and atomic absorption spectrophotometry (AAS). In the UV-Vis results a characteristic band at 420 nm were observed. However, when the concentration of silver decreased, a change in band intensity was detected. Atomic absorption spectrophotometry measurements from different solutions of Ag nanoparticles showed a linear behavior similar to the silver standard solution in the concentration range 1 to 4 mgL^-1. However, up 4 mgL^-1 concentrations, the slope of the calibration curve is increases when the concentration of Ag nanoparticles is increased too.

• Periodical: Materials Science Forum (Volume 755)
• Pages: 15-20
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.755.15
• Online since: April 2013
• Authors: A. Ruíz-Baltazar, Rodrigo Alonso Esparza Muñoz, R. Pérez, Gerardo Antonio Rosas Trejo
• Keywords: Chemical Reduction, Nanoparticle, Silver, Spectroscopy, Synthesis

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