Mechanochemical Synthesis of Fe2O3 Nanoparticles
2015
Abstract In this work, formation of iron oxide nanoparticles by mechanochemical reactions in different milling times was studied. During the mechanical milling, the solid-state displacement reaction of 3Na 2 CO 3 + 2FeCl 3 .6H 2 O = 6NaCl + Fe 2 O 3 .6H 2 O + 3CO 2 was induced to form iron oxide nanoparticles. A simple washing process was done to remove NaCl by-product and subsequently the particles dried at 105°C for 12 h. Nanoparticles size and the mechanochemical effect were characterized by X-ray diffraction (XRD) and particle size analysis. Experimental results show that increasing the milling time can effectively reduce the nanoparticle size of Fe 2 O 3 . The average Fe 2 O 3 nanoparticles size is about 14 nm for 2h and 4 nm for 5h milling process.
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