Effective ultrasonication process for better colloidal dispersion of nanofluid

Mahbubul, I.M. and Saidur, Rahman and Amalina, M.A. and Elcioglu, E.B. and Okutucu-Ozyurt, T. (2015) Effective ultrasonication process for better colloidal dispersion of nanofluid. Ultrasonics Sonochemistry, 26. pp. 361-369. ISSN 1350-4177, DOI https://doi.org/10.1016/j.ultsonch.2015.01.005.

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Official URL: http://www.ncbi.nlm.nih.gov/pubmed/25616639


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. (C) 2015 Elsevier B.V. All rights reserved.

Item Type: Article
Funders: University of Malaya from the Ministry of Education Malaysia UM.C/625/1/HIR/MoE/ENG/40 (D000040-16001)
Additional Information: ISI Document Delivery No.: CI8LR Times Cited: 0 Cited Reference Count: 23 Cited References: Amrollahi A, 2008, NANOTECHNOLOGY, V19, DOI 10.1088/0957-4484/19/31/315701 Chakraborty S, 2012, ULTRASON SONOCHEM, V19, P1044, DOI 10.1016/j.ultsonch.2012.01.016 Chen HS, 2007, NEW J PHYS, V9, DOI 10.1088/1367-2630/9/10/367 Chung SJ, 2009, POWDER TECHNOL, V194, P75, DOI 10.1016/j.powtec.2009.03.025 Elcioglu E.B., 2014, INT C THERM MECH PRO Garg P, 2009, INT J HEAT MASS TRAN, V52, P5090, DOI 10.1016/j.ijheatmasstransfer.2009.04.029 Ghadimi A, 2011, INT J HEAT MASS TRAN, V54, P4051, DOI 10.1016/j.ijheatmasstransfer.2011.04.014 Goharshadi EK, 2009, ULTRASON SONOCHEM, V16, P120, DOI 10.1016/j.ultsonch.2008.05.017 Kabir ME, 2007, MAT SCI ENG A-STRUCT, V459, P111, DOI 10.1016/j.msea.2007.01.031 Kole M, 2012, THERMOCHIM ACTA, V535, P58, DOI 10.1016/j.tca.2012.02.016 Kwak K, 2005, KOREA-AUST RHEOL J, V17, P35 Lam CK, 2005, MATER LETT, V59, P1369, DOI 10.1016/j.matlet.2004.12.048 Lee JH, 2008, INT J HEAT MASS TRAN, V51, P2651, DOI 10.1016/j.ijheatmasstransfer.2007.10.026 Mahbubul I. M., 2012, INT J HEAT MASS TRAN, V55, P877 Mahbubul IM, 2014, IND ENG CHEM RES, V53, P6677, DOI 10.1021/ie500705j Mandzy N, 2005, POWDER TECHNOL, V160, P121, DOI 10.1016/j.powtec.2005.08.020 Muller R.H., 1996, ZETAPOTENTIAL PARTIK, Vfirst Nguyen VS, 2011, ULTRASON SONOCHEM, V18, P382, DOI 10.1016/j.ultsonch.2010.07.003 Ruan BL, 2012, NANOSCALE RES LETT, V7, P1, DOI 10.1186/1556-276X-7-127 Taurozzi J., 2012, NANOEHS PROTOCOLS NA Yang Y, 2006, J APPL PHYS, V99, DOI 10.1063/1.2193161 Zhu H., 2007, LEADING EDGE NANOTEC Zhu HT, 2010, SCI CHINA TECHNOL SC, V53, P360, DOI 10.1007/s11431-010-0032-5 Mahbubul, I. M. Saidur, R. Amalina, M. A. Elcioglu, E. B. Okutucu-Ozyurt, T. Engineering, Faculty /I-7935-2015 Engineering, Faculty /0000-0002-4848-7052 University of Malaya from the Ministry of Education Malaysia UM.C/625/1/HIR/MoE/ENG/40 (D000040-16001) 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". 0 ELSEVIER SCIENCE BV AMSTERDAM ULTRASON SONOCHEM
Uncontrolled Keywords: Nanofluid, Ultrasonication duration, Sonicator amplitude, Microstructure, Particle size distribution, Zeta potential, AQUEOUS NANOFLUIDS, ULTRASOUND SONICATION, THERMAL-CONDUCTIVITY, VISCOSITY, ZNO,
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 18 Apr 2016 00:46
Last Modified: 25 Oct 2019 06:29
URI: http://eprints.um.edu.my/id/eprint/15783

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