Preparation and Characterization of Rutile Titania Nanofluids Stabilized in Different Surfactants Base Fluids

Author(s): Radwa A. El-Salamony*, Mohamed Z. Abd-Elaziz, Rania E. Morsi, Ahmed M. Al-Sabagh, Saad S.M. Hassan

Journal Name: Nanoscience & Nanotechnology-Asia

Volume 10 , Issue 5 , 2020


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Abstract:

Background: Improvement of conventional heat transfer fluids for achieving higher energy efficiencies in thermal equipment is a key parameter to conserve energy in industries. The heat transfer fluids such as water, oil and ethylene glycol greatly suffer low heat transfer performance in industrial processes. There is a need to develop new types of heat transfer fluids that are more effective in terms of heat transfer performance. Nanofluids enhance thermal conductivity and improve the thermal performance of heat transfer systems.

Methods: New titania nanofluid samples consisting of 0.0625 to 1% TiO2 nanoparticles were prepared and characterized. The method of preparation was based on prior precipitation of TiO2 from an ammoniacal solution of pH 9 and calcination at 900°C. Solubilization, homogenization and stabilization of the of the nanoparticles were performed by sonication in the presence of sodium dodecyl sulfate (SDS) anionic surfactant and cetyltrimethylammonium bromide (CTAB) cationic surfactant.

Results: This treatment was also utilized to increase the stability and improve the thermal properties of the fluid.

Conclusion: Several characterization techniques including measurements of hydrodynamic size distribution, zeta potential, transmission electron microscopy (TEM), viscosity, density, specific heat, thermal conductivity, and sedimentation photo capturing were used to measure and confirm the stability and sedimentation rate of the prepared nanofluids.

Keywords: Titanium nanofluids, rutile phase, CTAB, SDS, thermal properties, heat transfer performance.

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Article Details

VOLUME: 10
ISSUE: 5
Year: 2020
Page: [682 - 695]
Pages: 14
DOI: 10.2174/2210681209666190319151152
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