Preparation of hydrophilic nickel nanofluid for thiophene adsorption

Authors

• Amal S.A. Khidr, Petroleum Refining Division, Egyptian Petroleum Research Institute, Nasr City, PO Box 11727, Cairo, Egypt.Follow
• F.S Soliman, Petroleum Refining Division, Egyptian Petroleum Research Institute, Nasr City, PO Box 11727, Cairo, Egypt.
• T. Zaki, Petroleum Refining Division, Egyptian Petroleum Research Institute, Nasr City, PO Box 11727, Cairo, Egypt
• D.Y Sabry, Chemistry Department, Faculty of Science, Ain Shams University, Abassia, Cairo, 11566, Egypt
• A.M. Al-Sabagh, Application Division, Egyptian Petroleum Research Institute, Nasr City, PO Box 11727, Cairo, Egypt.

Article Type

Research Paper

Highlights

• The hydrophilic nickel nanofluid was synthesized and characterized.

• Thiophene was eliminated after only 30 minutes of vortex mixing with hydrophilic nickel nanofluid.

•After thiophene adsorption, the amphiphilic nickel nanoparticles assembled at oil-EG interface.

Abstract

In this research, a rapid and energy-efficient procedure was investigated for the removal of thiophene from model gasoline. Thiophene was eliminated after only 30 minutes of mixing with hydrophilic nickel nanofluid under ambient conditions. The hydrophilic nickel nanofluid was synthesized using hydrazine as a reducing agent and ethylene glycol as a stabilizing agent through a chemical reduction method. The study examined the impact of the dispersion stability of nickel nanoparticles in the base fluid on the thiophene adsorption process. The effectiveness of the nickel nanoparticles as adsorbents was evaluated by monitoring the concentrations of both NiNPs and thiophene, as well as the duration of contact between thiophene and nickel nanoparticles. The kinetics and thermodynamics of the adsorption were studied. Finally, NiNPs coated with both ethylene glycol (a hydrophilic ligand) and thiophene (a hydrophobic ligand) were easily removed from the oil-EG interface after the adsorption process. Amphiphilic nickel nanoparticles were imaged using electron microscopes (FE-SEM and HR-TEM). This method innovatively utilizes hydrophilic nickel nanofluid to remove thiophene.

Keywords

nickel; adsorption; thiophene; kinetic; nanofluid.

Recommended Citation

Khidr, Amal S.A.; Soliman, F.S; Zaki, T.; Sabry, D.Y; and Al-Sabagh, A.M. (2026) "Preparation of hydrophilic nickel nanofluid for thiophene adsorption," Egyptian Journal of Petroleum: Vol. 35 : Iss. 3 , Article 9.
Available at: https://doi.org/10.62593/2090-2468.1123

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