Functionalization of Magnetite Nanoparticles as Oil Spill Collector

Abstract

In the present study, a new magnetic powder based on magnetite can be used as a petroleum crude oil collector. Amidoximes based on rosin as a natural product can be prepared from a reaction between hydroxylamine and rosin/acrylonitrile adducts. The produced rosin amidoximes were used as capping agents for magnetite nanoparticles to prepare hydrophobic coated magnetic powders. A new class of monodisperse hydrophobic magnetite nanoparticles was prepared by a simple and inexpensive co-precipitation method. Iron ions and iodine were prepared by the reaction between ferric chloride and potassium iodide. The structure and morphology of magnetite capped with rosin amidoxime were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), zeta potential, thermogravimetric analysis (TGA) and dynamic light scattering (DLS). The magnetic properties were determined from vibrating sample magnetometer (VSM) analyses. These prepared magnetite nanoparticles were tested as bioactive nanosystems and their antimicrobial effects were investigated. The prepared nanomaterials were examined as a crude oil collector using magnetic fields. The results show promising data for the separation of the petroleum crude oil from aqueous solution in environmental pollution cleanup.

Novel magnetic iron oxide nanoparticles coated with sulfonated asphaltene as crude oil spill collectors

“…This value is very high when compared with the maghemite composite which collects 10 g of crude oil per g of magnetic materials. [22][23][24]45 These results indicate also that the increase of the magnetite oil ratio to 1 : 1 was not effective to collect crude oil due to aggregation of magnetite clusters that affect the magnetic attraction between the magnetic particles and the magnet. It was also found that the presence of asphaltene and magnetite in SAS-MPNS and SAS-MPKI increases the removal efficiency of the oil from the water due to the larger dispersion of the prepared materials in heavy crude oil.…”

Synthesis and application of monodisperse hydrophobic magnetite nanoparticles as an oil spill collector using an ionic liquid

“…The iron cations can be stabilized by AMO through chelation with the oleate carboxylate anion and interaction with the unsaturated double bond and allyl bonds of oleate. 41 The repulsion between the imidazolium cations of the prepared AMO and the iron cations facilitates the capping of the iron cations with the carboxylate anions of OA to control the dispersity, particle size and porosity. The proposed mechanism suggests that monodisperse Fe 3 O 4 nanocrystals can be rapidly formed at low temperature, which can be observed using different characterization techniques.…”

“…[10][11][12][13][14][15][16] More recently, the use of adsorbents with a combination of porosity and magnetic properties has been proposed as the most effective magnetic separation technique for applying nanocomposites for water treatment and oil spill collection. [17][18][19][20][21] Hydrophobic magnetic nanomaterials have also been proposed to control water pollution from crude oil spills due to their excellent dispersion in crude oil and good response to an external magnetic eld. Different methods have been used to prepare magnetic nanomaterials based on magnetite, such as co-precipitation, microemulsion, thermal decomposition, and hydrothermal synthesis.…”

Application of new amphiphilic ionic liquid based on ethoxylated octadecylammonium tosylate as demulsifier and petroleum crude oil spill dispersant

“…There are several methods were used to control the oil spill pollution such as mechanical, chemicals and A c c e p t e d M a n u s c r i p t bioremediation techniques [45]. The chemical methods attracted great attention due to their high efficiencies and effectiveness, fast treatment of oil spill such as dispersants, washing agents, demulsifiers, adsorbents with applying advanced magnetic separation method [27,[46][47][48]. Among several chemical treatments, dispersants still play an important technique for oil spill removal due to availability of chemicals based on mixtures of nonionic surfactants mixed with 10% of ionic surfactants [45].…”