Nano-based systems for oil spills control and cleanup

Area of Science:

• Materials Science
• Nanotechnology
• Environmental Science

Background:

• Superhydrophobic and oleophilic surfaces are crucial for oil-water separation.
• Electrospinning offers a versatile method for creating complex nanostructured materials.
• Developing efficient and recyclable sorbent materials is essential for environmental remediation.

Purpose of the Study:

• To develop novel superhydrophobic and oleophilic nanocomposite systems.
• To investigate the oil adsorption and absorption capabilities of these systems.
• To evaluate their potential as sorbent materials for oil spill containment and cleanup.

Main Methods:

• Utilized electrospinning technique with polystyrene (PS) and N,N' dimethylformamide (DMF).
• Developed a
• Tea-bag
• (T-B) nanocomposite system incorporating exfoliated graphite and PS membranes.
• Tested adsorption and absorption rates using various oil-water emulsions (motor oil, vacuum pump oil).

Main Results:

• Achieved high oil absorption rates ranging from 2.5g/g to 40g/g.
• Demonstrated oil adsorption rates between 0.32g/g/min and 0.80g/g/min, dependent on oil surface tension.
• Confirmed the effectiveness of T-B systems as containment barriers and sorbent materials, highlighting their recyclability.

Conclusions:

• The developed superhydrophobic and oleophilic T-B nanocomposite systems show significant potential for oil spill remediation.
• Oil adsorption is influenced by surface tension, while absorption depends on the surface area of the nanocomposite.
• The recyclability of these materials adds to their environmental and economic viability.