Synthesis and properties of silk yarn containing Ag nanoparticles under ultrasound irradiation.

The silk yarn containing Ag nanoparticles was prepared through the chemical reduction under ultrasound irradiation. In this system, ethylene glycol served as a reduction reagent and protecting silver nanoparticles from aggregation. The effect of some parameter, such as power of ultrasound irradiation and temperature in growth of the nanometric Ag were studied. Particle sizes and morphology of nanoparticle are depending on power of ultrasound irradiation. Results show a decrease in the particles size as decreasing power of ultrasound irradiation. Also, an increasing of temperature leads to an increasing of particle size. The silk yarn containing Ag nanoparticles were characterized with powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and FT-IR spectroscopy.