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Vol. 32 No. 3 (2020): Vol 32 Issue 3

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Wet Chemical Synthesis of CuO-PVA Hybrid Nanofluid Stabilized by Steric Repulsion

https://doi.org/10.14233/ajchem.2020.22424
Annie Aureen Albert
Department of Physics, Hindustan Institute of Technology and Science, Padur, Chennai-603103, India
https://orcid.org/0000-0002-3297-4921
D.G. Harris Samuel
Department of Mechanical Engineering, Hindustan Institute of Technology and Science, Padur, Chennai-603103, India
https://orcid.org/0000-0002-0909-0159
V. Parthasarathy
Department of Physics, Hindustan Institute of Technology and Science, Padur, Chennai-603103, India
https://orcid.org/0000-0001-7621-1371

Corresponding Author(s) : Annie Aureen Albert

annieaahits@gmail.com

Asian Journal of Chemistry, Vol. 32 No. 3 (2020): Vol 32 Issue 3

Abstract

CuO-PVA hybrid nanofluid was synthesized within PVA matrix by a simple wet chemical precipitation method. The influence of rate of addition of precursor (NaOH) on the structure, morphology and stability of CuO-PVA hybrid nanofluids were studied. The structure was confirmed by XRD and UV-visible spectroscopy. High resolution transmission microscopy (HRTEM) images revealed the formation of smaller particles for addition of precursor in solid form or rapid addition (RA), whereas slow addition of precursor (SA) resulted in uniform particle size. The selected area electron diffraction (SAED) pattern of sample SA shows rings with small bright spots indicating that the sample is nano crystalline. The SAED pattern of sample RA shows diffuse rings with lesser number of bright spots indicating that it is less crystalline. The stability studies indicate that both the samples were stable for more than one year.

Keywords

Hybrid nanofluid CuO nanoparticles PVA Dispersion TEM Zeta potential Nanofluid stability
Albert, A. A., Harris Samuel, D., & Parthasarathy, V. (2020). Wet Chemical Synthesis of CuO-PVA Hybrid Nanofluid Stabilized by Steric Repulsion. Asian Journal of Chemistry, 32(3), 570–574. https://doi.org/10.14233/ajchem.2020.22424
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