Effective ultrasonication process for better colloidal dispersion of nanofluid

I. M. Mahbubul; R. Saidur; M. A. Amalina; E. B. Elcioglu; T. Okutucu-Ozyurt

doi:10.1016/j.ultsonch.2015.01.005

Effective ultrasonication process for better colloidal dispersion of nanofluid

I. M. Mahbubul, R. Saidur^*, M. A. Amalina, E. B. Elcioglu, T. Okutucu-Ozyurt

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

150 Citations (Scopus)

Abstract

Improving dispersion stability of nanofluids through ultrasonication has been shown to be effective. Determining specific conditions of ultrasonication for a certain nanofluid is necessary. For this purpose, nanofluids of varying nanoparticle concentrations were prepared and studied to find out a suitable and rather mono-dispersed concentration (i.e.; 0.5 vol.%, determined through transmission electron microscopy (TEM) analyses). This study aims to report applicable ultrasonication conditions for the dispersion of Al₂O₃ nanoparticles within H₂O through the two-step production method. The prepared samples were ultrasonicated via an ultrasonic horn for 1-5 h at two different amplitudes (25% and 50%). The microstructure, particle size distribution (PSD), and zeta potentials were analyzed to investigate the dispersion characteristics. Better particle dispersion, smaller aggregate sizes, and higher zeta potentials were observed at 3 and 5 h of ultrasonication duration for the 50% and 25% of sonicator power amplitudes, respectively.

Original language	English
Pages (from-to)	361-369
Number of pages	9
Journal	Ultrasonics Sonochemistry
Volume	26
DOIs	https://doi.org/10.1016/j.ultsonch.2015.01.005
Publication status	Published - 1 Sept 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V.

Funding

The authors are thankful to University of Malaya for financial support under the “High Impact Research MoE Grant: UM.C/625/1/HIR/MoE/ENG/40 (D000040-16001) from the Ministry of Education Malaysia ”.

Funders	Funder number
Ministry of Higher Education, Malaysia
Universiti Malaya	D000040-16001, UM.C/625/1/HIR/MoE/ENG/40

Keywords

Microstructure
Nanofluid
Particle size distribution
Sonicator amplitude
Ultrasonication duration
Zeta potential

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10.1016/j.ultsonch.2015.01.005

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title = "Effective ultrasonication process for better colloidal dispersion of nanofluid",

abstract = "Improving dispersion stability of nanofluids through ultrasonication has been shown to be effective. Determining specific conditions of ultrasonication for a certain nanofluid is necessary. For this purpose, nanofluids of varying nanoparticle concentrations were prepared and studied to find out a suitable and rather mono-dispersed concentration (i.e.; 0.5 vol.\%, determined through transmission electron microscopy (TEM) analyses). This study aims to report applicable ultrasonication conditions for the dispersion of Al2O3 nanoparticles within H2O through the two-step production method. The prepared samples were ultrasonicated via an ultrasonic horn for 1-5 h at two different amplitudes (25\% and 50\%). The microstructure, particle size distribution (PSD), and zeta potentials were analyzed to investigate the dispersion characteristics. Better particle dispersion, smaller aggregate sizes, and higher zeta potentials were observed at 3 and 5 h of ultrasonication duration for the 50\% and 25\% of sonicator power amplitudes, respectively.",

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AU - Mahbubul, I. M.

AU - Saidur, R.

AU - Amalina, M. A.

AU - Elcioglu, E. B.

AU - Okutucu-Ozyurt, T.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - Improving dispersion stability of nanofluids through ultrasonication has been shown to be effective. Determining specific conditions of ultrasonication for a certain nanofluid is necessary. For this purpose, nanofluids of varying nanoparticle concentrations were prepared and studied to find out a suitable and rather mono-dispersed concentration (i.e.; 0.5 vol.%, determined through transmission electron microscopy (TEM) analyses). This study aims to report applicable ultrasonication conditions for the dispersion of Al2O3 nanoparticles within H2O through the two-step production method. The prepared samples were ultrasonicated via an ultrasonic horn for 1-5 h at two different amplitudes (25% and 50%). The microstructure, particle size distribution (PSD), and zeta potentials were analyzed to investigate the dispersion characteristics. Better particle dispersion, smaller aggregate sizes, and higher zeta potentials were observed at 3 and 5 h of ultrasonication duration for the 50% and 25% of sonicator power amplitudes, respectively.

AB - Improving dispersion stability of nanofluids through ultrasonication has been shown to be effective. Determining specific conditions of ultrasonication for a certain nanofluid is necessary. For this purpose, nanofluids of varying nanoparticle concentrations were prepared and studied to find out a suitable and rather mono-dispersed concentration (i.e.; 0.5 vol.%, determined through transmission electron microscopy (TEM) analyses). This study aims to report applicable ultrasonication conditions for the dispersion of Al2O3 nanoparticles within H2O through the two-step production method. The prepared samples were ultrasonicated via an ultrasonic horn for 1-5 h at two different amplitudes (25% and 50%). The microstructure, particle size distribution (PSD), and zeta potentials were analyzed to investigate the dispersion characteristics. Better particle dispersion, smaller aggregate sizes, and higher zeta potentials were observed at 3 and 5 h of ultrasonication duration for the 50% and 25% of sonicator power amplitudes, respectively.

KW - Microstructure

KW - Nanofluid

KW - Particle size distribution

KW - Sonicator amplitude

KW - Ultrasonication duration

KW - Zeta potential

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AN - SCOPUS:84929454154

SN - 1350-4177

VL - 26

SP - 361

EP - 369

JO - Ultrasonics Sonochemistry

JF - Ultrasonics Sonochemistry

ER -

Effective ultrasonication process for better colloidal dispersion of nanofluid

Abstract

Bibliographical note

Funding

Keywords

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