New route for preparation and characterization of magnetite nanoparticles

Thesis

b, M.A. Abdalla a, M.H. Jaafar a,*, Z.A. Al-Othman a, S.M. Alfadul b, M. Ali Khan . 2011

• نوع عمل المنشور: paper
• رابط المنشور على الويب: Arabian Journal of Chemistry (2011) 4, 235–237

مستخلص المنشور

 

Abstract 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(II) 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% NH4OH solution using the magnetic decantation method.
2FeðIIÞ þ 3FeðIIIÞ !
pH¼9
NH4OH
Fe3O4 #
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.