Synthesis and application Of magnetic nanoparticles coated with stearic acid and palmitic acid, and ionic and nonionic surfactants

Today, nanoscience and nanotechnology are considered as one of the most important research areas an extension of modern science. Nanoparticles magnetic have found many applications due to features such as a large special surface and simple separation with external magnetic field.1Magnetic nanoparticles (MNPs) functionalized by organic and/or inorganic substrates have attracted much interest, because of their potential in medical resonance imaging (MRI)2, drug delivery3, magnetic recording media, catalysis4, wastewater purification5, and etc.Magnetically driven separation is one of the major potential application areas for nanoparticles and has received considerable attention in the past decades.6 Applying functional MNPs in oil-water multiphase separation and extraction have received increased recent attention.7-9In this work, after synthesis of iron magnetic nanoparticles by co-precipitation, then, coating them with fatty acid of palmitic acid, as well as ionic and nonionic surfactants, their application were investigated especially, in demulsification for ligroin in water nanoemulsions. Finally, we compared the application of synthesized magnetic nanoparticles to demulsification of the crude oil-water emulsions.

Keywords:

Magnetic nanoparticle , Separation , Oil droplet , Demulsification