Abstract
In response to oil spills, it is imperative to develop efficient and eco-friendly sorbent materials. Oil remediation techniques are limited, prompting researchers to look into using nanotechnology for oil cleanup. Therefore, magnetic Fe3O4 composite nanoparticles (MNPs) were synthesized by the chemical co-precipitation method. The MNPs were then coated with activated carbon (AC) layer, followed by soybean oil/stearic acid surface decoration. The morphology and surface properties of the material were characterized using a scanning electron microscope (SEM), Brunauer-Emmett-Teller (BET), and contact angle (CA) analyses. The results showed an excellent amphiphilicity with water CA of 0° and oil CA of nearly 0°. In terms of applicability for oil recovery operations, the fabricated nanocomposite revealed sorption capacities greater than 6.5 g/g for a range of oils. In addition, the sorbent can be reused at least five times with advantageous characteristics for selective oil recovery on surface waters owning to its intense super-paramagnetic properties. Considering our results, we suggest that there is a practical application for magnetic AC nanomaterials in spilled oil response.
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