Ultrasound-assisted coating of silk yarn with sphere-like Mn3O4 nanoparticles

The growth of sphere-like trimanganese tetraoxide (Mn3O4) nanoparticles on silk fiber was achieved by sequential dipping in an alternating bath of potassium hydroxide and manganese(II) nitrate under ultrasound irradiation. Some parameters such as the effect of pH, numerous sequential dipping and ultrasonic irradiation on growth of the nanoparticles have been studied. The samples were characterized with powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and wavelength dispersive X-ray (WDX).

► Nanoparticles of Mn3O4 on silk fiber were prepared by sequential dipping under ultrasound irradiation.
► The effect of pH, numerous sequential dipping and ultrasonic irradiation has been studied.
► Result showed a decrease in the particle size with increase in concentration and sequential dipping steps.