A facile route to sonochemical synthesis of magnetic iron oxide (Fe3O4) nanoparticles

作者：Islam Md Nazrul; Le Van Phong; Jeong Jong Ryul; Kim CheolGi^*

来源：Thin Solid Films, 2011, 519(23): 8277-8279.

DOI：10.1016/j.tsf.2011.03.108

• Sonochemistry
• Monodispersity
• Superparamagnetism

A facile sonochemical approach was applied for the large scale synthesis of iron oxide magnetic nanoparticles (NPs) using inexpensive and non-toxic metal salts as reactants. The as-prepared magnetic iron oxide NPs has been characterized by XRD, TEM, EDS, and VSM. X-ray diffraction (XRD) and EDS analysis revealed that Fe3O4 NPs have been successfully synthesized in a single reaction by this simple method. Transmission electron microscopy (TEM) data demonstrated that the particles were narrow range in size distribution with 11 nm average particle size. Moreover. TEM measurements also show that the synthesized nanoparticles are almost spherical in shape. The magnetization curve from vibrating sample magnetometer (VSM) measurement shows that as-synthesized NPs were nearly superparamagnetic in magnetic properties with very low coercivity, and magnetization values were 80 emu/g, which is very near to the bulk value of iron oxide. The estimated value of mass susceptibility of as-synthesized nanoparticles is Xg = 5.71 x 10(-4) m(3)/kg.

• 出版日期2011-9-30