A New and simple pathway route way for the synthesis of silver nanoparticles using the industrial latex

Abstract

This paper presents a new method for preparing silver nanofluids based onself assembly process induced by the aqueous emulsion of copolymers (Latex) on Silver nitrate precursor dissolved in alcohol. We have observed after few hours, that nanoparticles of silver are formed in the alcohol/latex solution without need of any external thermal excitation. These results are compared with the case where the synthesis was assisted by microwave providing thermal excitation.

The latex polymers act as reducer inducing Ag+ →Ag° reaction in the colloidal solution and also as the protecting agent of the formed Ag nanoparticles encapsulated in the latex matrix. The obtained solutions have been characterized by The UV-Visible, XRD, TEM, and SEM. The UV- Visible spectrum shows a single peak at 425 nm arising from the surface plasmon absorption of silver nanoparticles. The TEM results showed that the spherical particles had an average diameter of 7 nm. The synthesized samples prepared Ag NPs were stable for more than 12 months at room temperature.