Abstract
In this study, an easy, rapid and eco-friendly method was used successfully to synthesize the magnetite nanoparticles (MNPs). In order to fine-tune the synthesized MNPs for the collection of heavy crude oil spills, the particles’ surface was modified with green hydrophobic biocomponents that were extracted from Anthemis pseudocotula (AP). The surface modified reaction carried with that of the MNPs in the presence of n-hexane extract (APH) resulted in the formation of APH-MNPs, while in the presence of chloroform extract (APC), resulted in APC-MNPs formation. The as-formed MNPs were thoroughly characterized using transmittance electron microscopy, X-ray powder diffraction, vibrating sample magnetometer and thermogravimetric analysis. The efficiency of the surface-modified MNPs for the collection of oil spills in the presence of an external magnetic field was evaluated by taking different ratios of MNPs:crude oil. From the analysis of the results, we found that the APH-MNPs particles have higher efficiency in the collection of heavy crude oil than the corresponding APC-MNPs.
Highlights
Oil spills are one of the most severe marine environmental disasters, causing water pollution through the release of several hazardous chemicals into the environment
The present work aimed to use the defatted hydrophobic extract APC and APH of A. pseudocotula to apply as capping agents and to increase the hydrophobicity of magnetite nanoparticles (MNPs) with excellent dispersion in crude oil spills more than dispersion in sea water
The application of the plant extracts to synthesize the nanomaterials was considered as a promising green method due to their biocompatibility, low toxicity and eco-friendly nature because the plants are found in abundance in nature
Summary
Oil spills are one of the most severe marine environmental disasters, causing water pollution through the release of several hazardous chemicals into the environment. There are many techniques that can be used to combat oil spills, including mechanical, bioremediation and chemical techniques [4]. Among these techniques, chemical means of separation have become one of the most common methods, where different polymers and copolymers are used to absorb, disperse or collect the spilled oil [5,6,7]. The removal of spilled oils by employing chemical collectors has become one of the most acceptable techniques because of its high efficiency and ability to reuse the chemicals as compared with other methods such as oil spill sorbents [9,12,13]
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