Identifying the features of surface roughness and H2 bubble production on the super-hydrophobic properties of Al2O3 and Mg membranes

Authors

DOI:

https://doi.org/10.15587/1729-4061.2023.286391

Keywords:

hybrid technology, superhydrophobicity, surface roughness, hybrid composition, membranes

Abstract

This research investigates Alumina (Al2O3) and Magnesium nano membrane layers using hybrid technology. Hybrid is a concept of combining two or more materials/elements to achieve something better. Hybrid technology was developed because of the possibility of combining materials/elements which, if used simultaneously, has more advantages than if used independently. The problem to be solved is to find the best composition of Alumina and Magnesium hybrid membranes. Superhydrophobic properties of the membrane are achieved at a percentage of Mg: 50 %, Al2O3:50 %. At a composition below 50 % Mg, the small surface roughness has a low surface tension, while the H2 production reaction by Mg is also low, so the surface tension carrying capacity of the gas and the roughness of the droplets is not strong, which causes the hydrophobicity to be low. In compositions above 50 % Mg, H2 production by high Mg makes bubbles cover the roughness peaks so that the surface tension is lower and changes the superhydrophobic to hydrophobic properties. At a high Mg percentage, H2 production is very large, while surface roughness decreases due to minimal Al2O3. As a result, the roughness grooves are unable to accommodate H2 gas bubbles, the bubbles completely cover the roughness peaks which are the source of surface tension so that the hydrophobic properties become hydrophilic. The results of this best hybrid composition can be used as a guide in making superhydrophobic membranes on Alumina (Al2O3) and Magnesium alloys. This membrane application is used as a filtration membrane in the water purification process. Superhydrophobic membranes are widely applied in membrane distillation, membrane gas absorption and pervaporation

Supporting Agency

  • The author would like to thank Lambung Mangkurat University for funding this research through DIPA funding from Lambung Mangkurat University for the 2023 Fiscal Year with Number: SP-DIPA – 023.17.2.677518/2023 dated 30 November 2022

Author Biographies

Rachmat Subagyo, Lambung Mangkurat University

Profesor of Mechanical Engineering

Department of Mechanical Engineering

I. N. G. Wardana, Brawijaya University

Profesor of Mechanical Engineering

Department of Mechanical Engineering

Agung Sugeng Widodo, Brawijaya University

Doctoral of Mechanical Engineering

Department of Mechanical Engineering

Eko Siswanto, Brawijaya University

Doctoral of Mechanical Engineering

Department of Mechanical Engineering

Andy Nugraha, Lambung Mangkurat University

Magister of Mechanical Engineering

Department of Mechanical Engineering

M. Munawar Fadilah, Lambung Mangkurat University

Student of Mechanical Engineering

Department of Mechanical Engineering

Agusnaedi, Lambung Mangkurat University

Student of Mechanical Engineering

Department of Mechanical Engineering

Ahmad Fadhila Ramadhani, Lambung Mangkurat University

Student of Mechanical Engineering

Department of Mechanical Engineering

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Identifying the features of surface roughness and H2 bubble production on the super-hydrophobic properties of Al2O3 and Mg membranes

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Published

2023-10-31

How to Cite

Subagyo, R., Wardana, I. N. G., Widodo, A. S., Siswanto, E., Nugraha, A., Fadilah, M. M., Agusnaedi, & Ramadhani, A. F. (2023). Identifying the features of surface roughness and H2 bubble production on the super-hydrophobic properties of Al2O3 and Mg membranes. Eastern-European Journal of Enterprise Technologies, 5(6 (125), 36–48. https://doi.org/10.15587/1729-4061.2023.286391

Issue

Vol. 5 No. 6 (125) (2023): Technology organic and inorganic substances

Section

Technology organic and inorganic substances

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Copyright (c) 2023 Rachmat Subagyo, I. N. G. Wardana, Agung Sugeng Widodo, Eko Siswanto, Andy Nugraha, M. Munawar Fadilah, Agusnaedi, Ahmad Fadhila Ramadhani

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