Experimental investigation on the dispersion stability of Al2O3-CuO hybrid nanofluid using ultraviolet (UV)-visible spectroscopy and Zeta potential analyzer
This paper focuses on an experimental investigation on the dispersion stability of 60:40 water and ethylene glycol based Al2O3-CuO hybrid nanofluids. The volume and concentration of hybrid nanofluids were set to be 30 ml and 0.5%. Three different surfactants (PVP, CTAB, and SLS) with different surfa...
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American Institute of Physics Inc.
2023
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| author | Zulkafli R.W. Wanatasanappan V.V. |
| author2 | 57226390031 |
| author_facet | 57226390031 Zulkafli R.W. Wanatasanappan V.V. |
| author_sort | Zulkafli R.W. |
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| collection | Institutional Repository |
| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | This paper focuses on an experimental investigation on the dispersion stability of 60:40 water and ethylene glycol based Al2O3-CuO hybrid nanofluids. The volume and concentration of hybrid nanofluids were set to be 30 ml and 0.5%. Three different surfactants (PVP, CTAB, and SLS) with different surfactant ratios (1:10 and 5:10) were used to ensure the nanofluids remained homogenous for a longer period. Dispersion stability is studied using several methods such as sedimentation observation, zeta potential, and UV-Vis. FESEM testing is conducted to study the morphological behavior of the nanoparticles powder, including particle size and structure. Visual inspection showed that only pure Al2O3-CuO and Al2O3-CuO-PVP (1:10) remained homogenous without any visible separation layer. As for UV-Vis spectroscopy, the absorbance value for all samples was below than 1%. Thus, to further investigate the stability Al2O3-CuO hybrid nanofluid, the Zeta potential test is also conducted. Analysis of Zeta potential indicated that PVP with surfactant ratio 1:10 provided better result on the nanofluid stability. The pH value for sample with the PVP dispersant is then measured to be 7.7 which is slightly further from the IEP (pH 9.7-10) � 2021 Author(s). |
| format | Conference Paper |
| id | my.uniten.dspace-26084 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2023 |
| publisher | American Institute of Physics Inc. |
| record_format | dspace |
| spelling | my.uniten.dspace-260842023-05-29T17:06:40Z Experimental investigation on the dispersion stability of Al2O3-CuO hybrid nanofluid using ultraviolet (UV)-visible spectroscopy and Zeta potential analyzer Zulkafli R.W. Wanatasanappan V.V. 57226390031 57217224948 This paper focuses on an experimental investigation on the dispersion stability of 60:40 water and ethylene glycol based Al2O3-CuO hybrid nanofluids. The volume and concentration of hybrid nanofluids were set to be 30 ml and 0.5%. Three different surfactants (PVP, CTAB, and SLS) with different surfactant ratios (1:10 and 5:10) were used to ensure the nanofluids remained homogenous for a longer period. Dispersion stability is studied using several methods such as sedimentation observation, zeta potential, and UV-Vis. FESEM testing is conducted to study the morphological behavior of the nanoparticles powder, including particle size and structure. Visual inspection showed that only pure Al2O3-CuO and Al2O3-CuO-PVP (1:10) remained homogenous without any visible separation layer. As for UV-Vis spectroscopy, the absorbance value for all samples was below than 1%. Thus, to further investigate the stability Al2O3-CuO hybrid nanofluid, the Zeta potential test is also conducted. Analysis of Zeta potential indicated that PVP with surfactant ratio 1:10 provided better result on the nanofluid stability. The pH value for sample with the PVP dispersant is then measured to be 7.7 which is slightly further from the IEP (pH 9.7-10) � 2021 Author(s). Final 2023-05-29T09:06:39Z 2023-05-29T09:06:39Z 2021 Conference Paper 10.1063/5.0051492 2-s2.0-85111388837 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85111388837&doi=10.1063%2f5.0051492&partnerID=40&md5=26672ce59564f41f034245ee6b70b25d https://irepository.uniten.edu.my/handle/123456789/26084 2347 20152 American Institute of Physics Inc. Scopus |
| spellingShingle | Zulkafli R.W. Wanatasanappan V.V. Experimental investigation on the dispersion stability of Al2O3-CuO hybrid nanofluid using ultraviolet (UV)-visible spectroscopy and Zeta potential analyzer |
| title | Experimental investigation on the dispersion stability of Al2O3-CuO hybrid nanofluid using ultraviolet (UV)-visible spectroscopy and Zeta potential analyzer |
| title_full | Experimental investigation on the dispersion stability of Al2O3-CuO hybrid nanofluid using ultraviolet (UV)-visible spectroscopy and Zeta potential analyzer |
| title_fullStr | Experimental investigation on the dispersion stability of Al2O3-CuO hybrid nanofluid using ultraviolet (UV)-visible spectroscopy and Zeta potential analyzer |
| title_full_unstemmed | Experimental investigation on the dispersion stability of Al2O3-CuO hybrid nanofluid using ultraviolet (UV)-visible spectroscopy and Zeta potential analyzer |
| title_short | Experimental investigation on the dispersion stability of Al2O3-CuO hybrid nanofluid using ultraviolet (UV)-visible spectroscopy and Zeta potential analyzer |
| title_sort | experimental investigation on the dispersion stability of al2o3-cuo hybrid nanofluid using ultraviolet (uv)-visible spectroscopy and zeta potential analyzer |
| url_provider | http://dspace.uniten.edu.my/ |