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Wettability of Nanostructured Transition-Metal Oxide (Al(2)O(3), CeO(2), and AlCeO(3)) Powder Surfaces

Wettability has been the focal point of many studies in metal oxide materials due to their applications in water–gas shift reactions, organic reactions, thermochemical water splitting, and photocatalysis. This paper presents the results of systematic experimental studies on the wettability of surfac...

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Autores principales: Alheshibri, Muidh, Albetran, H. M., Abdelrahman, B. H., Al-Yaseri, A., Yekeen, N., Low, I. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9410445/
https://www.ncbi.nlm.nih.gov/pubmed/36013622
http://dx.doi.org/10.3390/ma15165485
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author Alheshibri, Muidh
Albetran, H. M.
Abdelrahman, B. H.
Al-Yaseri, A.
Yekeen, N.
Low, I. M.
author_facet Alheshibri, Muidh
Albetran, H. M.
Abdelrahman, B. H.
Al-Yaseri, A.
Yekeen, N.
Low, I. M.
author_sort Alheshibri, Muidh
collection PubMed
description Wettability has been the focal point of many studies in metal oxide materials due to their applications in water–gas shift reactions, organic reactions, thermochemical water splitting, and photocatalysis. This paper presents the results of systematic experimental studies on the wettability of surfaces of nanostructured transition-metal oxides (TMOs) (Al(2)O(3), CeO(2), and AlCeO(3)). The wettability of nanoparticles was investigated by measuring contact angles of different concentrations of water-based nanofluids (0.05–0.1 wt%) on the glass slide. The morphology, the heterostructure, and the nature of incorporated nanoparticles were confirmed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Characteristic diffraction patterns of the nanomaterials were evaluated using energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) techniques. The contact angles of water–Al(2)O(3), water–CeO(2), and water–AlCeO(3) were measured as 77.5 ± 5°, 89.8 ± 4°, and 69.2 ± 1°, respectively. This study suggests that AlCeO(3) is strongly water-wet (hydrophilic), while CeO(2) is weakly water-wet (hydrophobic). It further demonstrated that the sizes and compositions of the nanoparticles are key parameters that influence their wetting behaviors.
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spelling pubmed-94104452022-08-26 Wettability of Nanostructured Transition-Metal Oxide (Al(2)O(3), CeO(2), and AlCeO(3)) Powder Surfaces Alheshibri, Muidh Albetran, H. M. Abdelrahman, B. H. Al-Yaseri, A. Yekeen, N. Low, I. M. Materials (Basel) Article Wettability has been the focal point of many studies in metal oxide materials due to their applications in water–gas shift reactions, organic reactions, thermochemical water splitting, and photocatalysis. This paper presents the results of systematic experimental studies on the wettability of surfaces of nanostructured transition-metal oxides (TMOs) (Al(2)O(3), CeO(2), and AlCeO(3)). The wettability of nanoparticles was investigated by measuring contact angles of different concentrations of water-based nanofluids (0.05–0.1 wt%) on the glass slide. The morphology, the heterostructure, and the nature of incorporated nanoparticles were confirmed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Characteristic diffraction patterns of the nanomaterials were evaluated using energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) techniques. The contact angles of water–Al(2)O(3), water–CeO(2), and water–AlCeO(3) were measured as 77.5 ± 5°, 89.8 ± 4°, and 69.2 ± 1°, respectively. This study suggests that AlCeO(3) is strongly water-wet (hydrophilic), while CeO(2) is weakly water-wet (hydrophobic). It further demonstrated that the sizes and compositions of the nanoparticles are key parameters that influence their wetting behaviors. MDPI 2022-08-10 /pmc/articles/PMC9410445/ /pubmed/36013622 http://dx.doi.org/10.3390/ma15165485 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Alheshibri, Muidh
Albetran, H. M.
Abdelrahman, B. H.
Al-Yaseri, A.
Yekeen, N.
Low, I. M.
Wettability of Nanostructured Transition-Metal Oxide (Al(2)O(3), CeO(2), and AlCeO(3)) Powder Surfaces
title Wettability of Nanostructured Transition-Metal Oxide (Al(2)O(3), CeO(2), and AlCeO(3)) Powder Surfaces
title_full Wettability of Nanostructured Transition-Metal Oxide (Al(2)O(3), CeO(2), and AlCeO(3)) Powder Surfaces
title_fullStr Wettability of Nanostructured Transition-Metal Oxide (Al(2)O(3), CeO(2), and AlCeO(3)) Powder Surfaces
title_full_unstemmed Wettability of Nanostructured Transition-Metal Oxide (Al(2)O(3), CeO(2), and AlCeO(3)) Powder Surfaces
title_short Wettability of Nanostructured Transition-Metal Oxide (Al(2)O(3), CeO(2), and AlCeO(3)) Powder Surfaces
title_sort wettability of nanostructured transition-metal oxide (al(2)o(3), ceo(2), and alceo(3)) powder surfaces
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9410445/
https://www.ncbi.nlm.nih.gov/pubmed/36013622
http://dx.doi.org/10.3390/ma15165485
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