Coloration and structure behavior after silver and copper nanoparticles formation in soda lime glass

A Chorfa,F Rubio,A Belbali,N Belkhir,J Rubio

doi:10.1002/mawe.201600754

Abstract

AbstractIn this work, an ion exchange non‐conventional process commonly called ancient painting process without using molten salts is used as a method for glass coloring. In this process of coloration, a mixture of metallic particles with kaolin and arabic adhesive is applied on the soda lime glass surface. Afterwards, the painted glass is submitted to the heat treatment to obtain the color. A comparative study is carried out in order to investigate the diffusion of metallic nanoparticles (silver and copper) in soda lime glasses depending on several parameters as the concentration and composition of stain spread on glass, and the heat treatment temperature. Characterization of the composition and structure of the painted glasses is performed by UV‐visible spectroscopy. In addition, nanoindentation and scanning electron microscopy (SEM) with energy dispersive X‐ray analysis (EDS) techniques are used to determine the penetration of metallic nanoparticles into glass. The obtained result shows that the coloration of painted glass differs and depends on the concentration and the kind of the mixture of the paw. Moreover, it was found that the effect of the heat treatment temperature is primordial on the formation and diffusion of metallic nanoparticles.

Highlights

Metallic nanoparticles are tools tailored by their easy synthesis and by their large capacity functionalizing surface [1]
It is illustrated that the absorption peak is more intense as the concentration of the copper paste spread on the glasses is high, and the coloration of the glasses painted with the copper sulfate is more intense than those painted with copper nitrate 78 % and 52 % respectively
It is noted that the spectrum of the glass painted with copper nitrate at low concentration (N1) is characterized by the absence of a peak near the wavelength 570 nm showing the non-formation of copper nanoparticles in this glass structure, Figure 1

Summary

Introduction

Metallic nanoparticles are tools tailored by their easy synthesis and by their large capacity functionalizing surface [1]. An enormous interest has grown in the development of new preparation methods of these metal nanoclusters composite glasses Such glasses have been recently prepared by ion implantation, radiation using laser, X-ray, or g-ray, and sol gel technique [10,11,12]. The ion exchange process in soda lime glass has generated considerable interest, by its consideration as a prime technique for integrated optical device applications. It is one of the simplest and most effective methods of making optical waveguides and gradient index lenses in glasses [14]

Results

Discussion

Conclusion