Green synthesis of magnetite iron oxide nanoparticles using al-Rawag tree (Moringa oleifera Lamarck)‎ leaves extract and used in Tigris river water treatment

Abstract EN

In this study, magnetite iron oxide nanoparticles were synthesized from aqueous ferrous chloride, ferric chloride and sodium hydroxide through a simple and eco-friendly route using Moringa oleifera leaves extracts, which acted as a reductant and stabilizer simultaneously.

Characterizations of nanoparticles were done by using UV-visible, FT-IR, XRD, and SEM methods.

The ultraviolet-visible spectrum of the aqueous solution containing magnetite iron oxide nanoparticle showed an absorption peak at round 430 nm.

FT-IR graph showed peaks at 519 cm _1 confirm the presence of Magnetite iron oxide nanoparticles in the synthesized samples.

It is clear that the bioactive molecules present in the leaves extract of Al-Rawag tree interacted with the synthesized Magnetite iron oxide nanoparticles.

The diffractogram exhibits six distinct diffraction peaks at 20 values, as the (220), (311), (400), (422), (511) and (440) crystallographic planes of the inverse spherical magnetite crystal.

The average crystallite size was evaluated by diffraction line broadening (d 311) using the Debye-Scherrer equation.

The average size of Fe.3.O.4 crystallites obtained from nanocomposite was about 40nm.

The magnetite iron oxide nanoparticles synthesized by the help of Al-Rawag tree leaves extracts were scanned using SEM.

It reveals that an iron oxide nanoparticle seems to be spherical in morphology.

The water treatment by magnetic iron oxide nanoparticles synthesize by Al-Rawag tree leaves extracts led to the reduction of the number of bacteria to 80% after twelve hours of treatment whereas water treatment by magnetic iron oxide nanoparticles for 24 hours led to kill all the bacteria in water