Synthesizing Nanoscale Iron Particles for Water and Soil Remediation (Farmlands).
2008
Salimi Nezhad, Farkhondeh | Kusha, Morteza | Chiyani, Mohammad | Pak Manesh, Mohammad Reza
Nanoparticles production is fundamental and important in nanotechnology. It means that, properties and application of Nanoparticles can be studied when they are produced easily.In this study, the main objective is synthesis and characterization of inexpensive and effective iron nanoparticles. In this research, iron Nanoparticles are synthesized by chemical reduction in aqueous phase. In this method, ferrous sulfate, nickel dichloride and sodium borohydride are used as precursors. Iron particles size and oxidation phases were controlled by parameters such as pH, ratio of reactant concentration and time. Iron Nanoparticles are characterized by scanning electron microscopy (SEM), X-Ray Diffraction (XRD) and transmission electron microscopy (TEM). As the result, the size of particles are minimized when the pH is 3-4 and the borohydride to ferro ions ratio was 5 times of stoichiometric requirement. In these conditions, the size of particles is less than 100nm and most of them are less than 50 nm. Also, iron Nanoparticles are identified by XRD that are zero valent iron and nickel.
Показать больше [+] Меньше [-]