Easy and new chemical synthesis of stable nano sliver using propylene glycol and glycerin as reducing agent

Abstract EN

In this present work we have synthesized stable silver nanoparticles (Ag-NPs) by chemical reduction with aqueous solutions of silver nitrate (i) propylene glycol (ii) glycerin as reducing agents and guar gum as a stabilizer.

The reaction were done at room temperature and at pH=8.

Systematic characterizations of the Ag-NPs were done using UV-Vis, zeta potential analysis, X-Ray diffraction (XRD), AFM and SEM which reveal stable Ag-NPs.

These measurements indicate that the particles are mostly spherical in shape.

The UV-Vis spectra of the result solution of AgNPs show an absorption peak at 412 nm and 424 nm for using propylene glycol and for using glycerin respectively.

These color occurring due to Surface Plasmon Resonance (SPR).

The SEM measurements gave a particle size of 40 -70 nm.

Nano silver showed stability for long periods of time to more than nine months, and this can be an economical and effective way for wide scale synthesis of Ag-NPs which applicable for various medical therapies.