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Mei B, Jasim DJ, Alizadeh A, Hekmatifar M, Nasajpour-Esfahani N, Salahshour S, Sabetvand R, Toghraie D. The effect of the initial temperature, pressure, and shape of carbon nanopores on the separation process of SiO 2 molecules from water vapor by molecular dynamics simulation. Chemosphere 2024; 349:140966. [PMID: 38109972 DOI: 10.1016/j.chemosphere.2023.140966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 11/27/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023]
Abstract
Today, with the advancement of science in nanotechnology, it is possible to remove dust nanostructures from the air breathed by humans or other fluids. In the present study, the separation of SiO2 molecules from H2O vapor is studied using molecular dynamics (MD) simulation. This research studied the effect of initial temperature, nanopore geometry, and initial pressure on the separation of SiO2 molecules. The obtained results show that by increasing the temperature to 500 K, the maximum velocity (Max-Vel) of the samples reached 2.47 Å/fs. Regarding the increasing velocity of particles, more particles pass via the nanopores. Moreover, the shape of the nanopore could affect the number of passing particles. The results show that in the samples with a cylindrical nanopore, 20 and 40% of SiO2 molecules, and with the sphere cavity, about 32 and 38% of SiO2 particles passed in the simulated structure. So, it can be concluded that the performance of carbon nanosheets with a cylindrical pore and 450 K was more optimal. Also, the results show that an increase in initial pressure leads to a decrease in the passage of SiO2 particles. The results reveal that about 14 and 54% of Silica particles passed via the carbon membrane with increasing pressure. Therefore, for use in industry, in terms of separating dust particles, in addition to applying an EF, temperature, nanopore geometry, and initial pressure should be controlled.
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Affiliation(s)
- Bing Mei
- College of Construction Engineering, Yunnan Agricultural University, Kunming, Yunnan, 650000, China.
| | - Dheyaa J Jasim
- Department of Petroleum Engineering, Al-Amarah University College, Maysan, Iraq
| | - As'ad Alizadeh
- Department of Civil Engineering, College of Engineering, Cihan University-Erbil, Erbil, Iraq
| | - Maboud Hekmatifar
- Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran
| | - Navid Nasajpour-Esfahani
- Department of Material Science and Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
| | - Soheil Salahshour
- Faculty of Engineering and Natural Sciences, Istanbul Okan University, Istanbul, Turkey; Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Turkey; Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
| | - Roozbeh Sabetvand
- Department of Energy Engineering and Physics, Faculty of Condensed Matter Physics, Amirkabir University of Technology, Tehran, Iran
| | - D Toghraie
- Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran.
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