REDUCTION OF COPPER NANOPARTICLES IN COTTON FABRIC USING ASCORBIC ACID

The conditions for the reduction of copper nanoparticles in cotton fabric using ascorbic acid as an environmentally friendly reducing
agent were investigated. The effect of the concentration of ascorbic acid (5–25%) and copper (II) sulfate (1–15%) on the processes
of metallic copper formation and its shielding properties was examined. It was found that increasing the concentration of the
reagents promotes the growth of the amount of reduced and fixed copper on the fiber surface. It was shown that under optimal
conditions, effective reduction and fixation of metallic copper on the cellulose matrix occur.
Microscopy and thermal analysis methods confirmed morphological changes in the fiber surface and changes in the thermal stability
of the material after treatment. The obtained results indicate the possibility of producing copper-containing textile materials with
desired functional properties under mild synthesis conditions.