New route for preparation and characterization of magnetite nanoparticles

作者：Abdalla M A; Jaafar M H^*; Al Othman Z A; Alfadul S M; Khan M Ali

来源：Arabian Journal of Chemistry, 2011, 4(2): 235-237.

DOI：10.1016/j.arabjc.2010.06.061

• Magnetite
• Nanoparticles
• Co-preparation
• Characterization
• Iron(II) chloride
• Iron(III) chloride

We report here the synthesis of naked magnetic nanoparticles by using a facile method. Magnetic nanoparticles were prepared by mixing and stirring two equivalents of iron(IT) chloride tetrahydrate with three equivalents of iron(III) chloride hexahydrate at room temperature. The mixture was treated by adding 100 ml of 28% ammonium hydroxide. Immediately, the color of the solution turned from orange to black. Magnetite nanoparticles precipitated and were washed three times with 5% NH(4)OH solution using the magnetic decantation method.
2Fe(II) + 3Fe(III) ph=9 NE arrow NH(4)OH Fe(3)O(4)down arrow
The nanoparticles have been underwent full characterization. Their surface show a bunch of hydroxyl groups which they can be used for further complexion and removal of many hazardous compound.

• 出版日期2011-4