PREPARATION AND STUDY OF MONODISPERSE IRON NANOPARTICLES

Abstract

Zero-valent iron nanoparticles were synthesized by the sol-gel method using its chloride salt (FeCl3‧6H2O) and sodium borohydride (NaBH4) as a reducing agent. A special feature of the synthesis is the relatively low production temperature – 100 °C. X-ray diffraction analysis revealed an almost single-phase state of the resulting material with a cubic structure. Microphotographs of the samples indicate the nanodispersed state of iron particles in the form of small spherical and large rod-shaped particles with a transverse size of up to 10 nm and an average length of 50 nm. Analysis of the data obtained during the research showed that the proposed sol-gel method is a simple and controlled method for the synthesis of monodisperse iron nanoparticles.