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Barati Farimani O, Cao Z, Barati Farimani A. Fast Water Desalination with a Graphene-MoS 2 Nanoporous Heterostructure. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29355-29363. [PMID: 38769617 PMCID: PMC11163393 DOI: 10.1021/acsami.4c01960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/08/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024]
Abstract
Energy-efficient water desalination is the key to tackle the challenges with drought and water scarcity that affect 1.2 billion people. The material and type of membrane in reverse osmosis water desalination are the key factors in their efficiency. In this work, we explored the potential of a graphene-MoS2 heterostructure membrane for water desalination, focusing on bilayer membranes and their advantages over monolayer counterparts. Through extensive molecular dynamics simulation and statistical analysis, the bilayer MoS2-graphene was investigated and compared to the monolayer of graphene and MoS2. By optimizing the heterostructure membrane, improved water flux was achieved while maintaining a high ion rejection rate. Furthermore, the study delves into the physical mechanisms underlying the superior performance of heterostructure nanopores, comparing them with circular bilayer and monolayer pores. Factors investigated include water structure, hydration shell near the membrane surface, water density, energy barrier using the potential of mean force, and porosity within the nanopore. Our findings contribute to the understanding of heterostructure membranes and their potential in enhancing the water desalination efficiency, providing valuable insights for future membrane design and optimization.
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Affiliation(s)
- Omid Barati Farimani
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania, 15213 United States
| | - Zhonglin Cao
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania, 15213 United States
| | - Amir Barati Farimani
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania, 15213 United States
- Department
of Chemical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
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Cao Z, Barati Farimani O, Ock J, Barati Farimani A. Machine Learning in Membrane Design: From Property Prediction to AI-Guided Optimization. NANO LETTERS 2024; 24:2953-2960. [PMID: 38436240 PMCID: PMC10941251 DOI: 10.1021/acs.nanolett.3c05137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Porous membranes, either polymeric or two-dimensional materials, have been extensively studied because of their outstanding performance in many applications such as water filtration. Recently, inspired by the significant success of machine learning (ML) in many areas of scientific discovery, researchers have started to tackle the problem in the field of membrane design using data-driven ML tools. In this Mini Review, we summarize research efforts on three types of applications of machine learning in membrane design, including (1) membrane property prediction using ML, (2) gaining physical insight and drawing quantitative relationships between membrane properties and performance using explainable artificial intelligence, and (3) ML-guided design, optimization, or virtual screening of membranes. On top of the review of previous research, we discuss the challenges associated with applying ML for membrane design and potential future directions.
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Affiliation(s)
- Zhonglin Cao
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh Pennsylvania 15213, United States
| | - Omid Barati Farimani
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh Pennsylvania 15213, United States
| | - Janghoon Ock
- Department
of Chemical Engineering, Carnegie Mellon
University, Pittsburgh Pennsylvania 15213, United States
| | - Amir Barati Farimani
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh Pennsylvania 15213, United States
- Department
of Chemical Engineering, Carnegie Mellon
University, Pittsburgh Pennsylvania 15213, United States
- Machine
Learning Department, Carnegie Mellon University, Pittsburgh Pennsylvania 15213, United States
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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] [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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Zheng B, Chu X, Peng Z, Tian Y. Improving the separation performance for heavy metals by optimizing the structure of multilayered GO membrane. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Lopez-Fernandez M, Tariq S, Naseem K, Ahmad A, Khan S, Younas U, Javed MS, Fan WS, Luque R, Ali S. Graphene based composite membranes for environmental toxicology remediation, critical approach towards environmental management. CHEMOSPHERE 2022; 307:136034. [PMID: 36029855 DOI: 10.1016/j.chemosphere.2022.136034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/23/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Graphene-based composite membranes, as laminated, stacked, and assembled architectures of graphene, have surpassed other conventional membranes with their advanced and preeminent structural specialization and potential use in a wide range of sustainable and environmental applications. The characteristic membrane features such as distinct laminar morphology, tailored physicochemical properties, as well as extraordinary molecular properties have fascinated scientists. Due to remarkable mechanical properties, these membranes can be easily fabricated. Recent progress has been achieved by graphene and its derivatives-based membranes to purify water and gases for environmental remediation. This review explained the latest and groundbreaking advances in chemical design, fabrication, and application of graphene-based membranes. Special attention is paid to the recent developments on graphene-based composites into membranes with various forms: free-standing, layered, and graphene-based nanocomposite membranes. Furthermore, a unique approach on environmental management with as-fabricated membranes is provided by discussing the effect of physicochemical properties. Consequently, their full-scale use for environmental management, water purification, gas purification, and biological treatments will pave the way for their promising features and realize their future prospects.
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Affiliation(s)
- Miriam Lopez-Fernandez
- Departamento de Quimica Organica, Universidad de Cordoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014, Cordoba, Spain
| | - Sadaf Tariq
- Department of Biochemistry, Government College University, Faisalabad, 38000, Pakistan
| | - Khalida Naseem
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of central punjab, Lahore, Pakistan
| | - Awais Ahmad
- Departamento de Quimica Organica, Universidad de Cordoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014, Cordoba, Spain
| | - Safia Khan
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Umer Younas
- Department of Chemistry, The University of Lahore, Lahore, 54590, Pakistan
| | - Muhammad Sufyan Javed
- School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, PR China.
| | - Wong Siew Fan
- Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology & Innovation, 57000, Kuala Lumpur, Malaysia
| | - Rafael Luque
- Departamento de Quimica Organica, Universidad de Cordoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014, Cordoba, Spain; Peoples Friendship University of Russia (RUDN University), 6 Miklukho Maklaya str., 117198, Moscow, Russian Federation.
| | - Shafaqat Ali
- Department of Environmental Sciences & Engineering, Government College University, Faisalabad, 38000, Pakistan; Department of Biological Sciences and Technology, China Medical University, Taichung, 40402, Taiwan.
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Lazarenko NS, Golovakhin VV, Shestakov AA, Lapekin NI, Bannov AG. Recent Advances on Membranes for Water Purification Based on Carbon Nanomaterials. MEMBRANES 2022; 12:915. [PMID: 36295674 PMCID: PMC9606928 DOI: 10.3390/membranes12100915] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/13/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Every year the problem of water purification becomes more relevant. This is due to the continuous increase in the level of pollution of natural water sources, an increase in the population, and sharp climatic changes. The growth in demand for affordable and clean water is not always comparable to the supply that exists in the water treatment market. In addition, the amount of water pollution increases with the increase in production capacity, the purification of which cannot be fully handled by conventional processes. However, the application of novel nanomaterials will enhance the characteristics of water treatment processes which are one of the most important technological problems. In this review, we considered the application of carbon nanomaterials in membrane water purification. Carbon nanofibers, carbon nanotubes, graphite, graphene oxide, and activated carbon were analyzed as promising materials for membranes. The problems associated with the application of carbon nanomaterials in membrane processes and ways to solve them were discussed. Their efficiency, properties, and characteristics as a modifier for membranes were analyzed. The potential directions, opportunities and challenges for application of various carbon nanomaterials were suggested.
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Transport behavior of water and ions through positively charged nanopores. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Effect of the Structure Morphology on the Mechanical Properties of Crumpled Graphene Fiber. FIBERS 2021. [DOI: 10.3390/fib9120085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Crumpled graphene fiber is a promising structure to be a graphene precursor to enhance the production and mechanical properties of various carbon fibers. The primary goal of the present work is to study the crumpled graphene of different morphologies using molecular dynamics simulations to find the effect of the structural peculiarities on the mechanical properties, such as the tensile strength, elastic modulus, and deformation characteristics. Mono- and poly-disperse structures are considered under uniaxial tension along two different axes. As it is found, both structures are isotropic and stress–strain curves for tension along different directions are very similar. Young’s modulus of crumpled graphene is close, about 50 and 80 GPa; however, the strength of the polydisperse structure is bigger at the elastic regime. While a monodisperse structure can in-elastically deform until high tensile strength of 90 GPa, structure analysis showed that polydisperse crumpled graphene fiber pores appeared two times faster than the monodisperse ones.
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Cao Z, Markey G, Barati Farimani A. Ozark Graphene Nanopore for Efficient Water Desalination. J Phys Chem B 2021; 125:11256-11263. [PMID: 34591487 DOI: 10.1021/acs.jpcb.1c06327] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A nanoporous graphene membrane is crucial to energy-efficient reverse osmosis water desalination given its high permeation rate and ion selectivity. However, the ion selectivity of the common circular graphene nanopore is dependent on the pore size and scales inversely with the water permeation rate. Larger, circular graphene nanopores give rise to the high water permeation rate but compromise the ability to reject ions. Therefore, the pursuit of a higher permeation rate while maintaining high ion selectivity can be challenging. In this work, we discover that the geometry of graphene nanopore can play a significant role in its water desalination performance. We demonstrate that the ozark graphene nanopore, which has an irregular slim shape, can reject over 12% more ions compared with a circular nanopore with the same water permeation rate. To reveal the physical reason behind the outstanding performance of the ozark nanopore, we compared it with circular, triangular, and rhombic pores from perspectives including interfacial water density, energy barrier, water/ion distribution in pores, the ion-water RDF in pores, and the hydraulic diameter. The ozark graphene nanopore further explores the potential of graphene for efficient water desalination.
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Affiliation(s)
- Zhonglin Cao
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Greta Markey
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Amir Barati Farimani
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.,Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
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