Assessment of the Hydrophilic-Hydrophobic Balance of Alumina Oxidized at Different Temperatures via H₂O and C₄H₁₀ Vapor Adsorption
- The hydrophilic-hydrophobic surface area of alumina powder (Al₂O₃) oxidized at different temperatures was determined on the base of adsorption of water and butane vapor at 25°C. In the order to study the influence of thermal oxidation upon hydrophilic/hydrophobic character of the surface, samples of Al₂O₃ were characterized using granulometry, SEM and BET surface area measurement. SEM results showed that the thermal treatment does not affect the morphology of the Alunima. However, the increase of treatment temperature from 250 to 900°C results in changing of the hydrophilic-hydrophobic balance of Al₂O₃ surface.
Author: | Naouel Hezil, Mamoun Fellah, Ridha Djellabi, Mohamed Zine Touhami, Alex Montagne, Fethia Bouaksa, Alain Iost, Alberto Mejias, Aleksei ObrosovORCiD |
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URL: | https://www.scientific.net/DDF.397.161 |
DOI: | https://doi.org/10.4028/www.scientific.net/DDF.397.161 |
ISSN: | 1662-9507 |
Title of the source (English): | Defect and Diffusion Forum |
Document Type: | Scientific journal article peer-reviewed |
Language: | English |
Year of publication: | 2019 |
Tag: | Adsorption; Alumina; Heterogeneity; Hydrophilic-Hydrophobic Balance; Surface Area; Thermal Treatment |
Volume/Year: | 397 |
First Page: | 161 |
Last Page: | 168 |
Faculty/Chair: | Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Metallkunde und Werkstofftechnik |