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Micari M, Duan X, Agrawal KV. Atmospheric water harvesting in semi-arid regions by membranes: A techno-economic assessment. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Liu Y, Li N, Cui X, Yan W, Su J, Jin L. A Review on the Morphology and Material Properties of the Gas Separation Membrane: Molecular Simulation. MEMBRANES 2022; 12:1274. [PMID: 36557181 PMCID: PMC9783095 DOI: 10.3390/membranes12121274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Gas membrane separation technology is widely applied in different industry processes because of its advantages relating to separation performance and economic efficiency. It is usually difficult and time consuming to determine the suitable membrane materials for specific industrial separation processes through traditional experimental research methods. Molecular simulation is widely used to investigate the microscopic morphology and macroscopic properties of materials, and it guides the improvement of membrane materials. This paper comprehensively reviews the molecular-level exploration of the dominant mechanism and influencing factors of gas membrane-based separation. The thermodynamics and kinetics of polymer membrane synthesis, the molecular interactions among the penetrated gases, the relationships between the membrane properties and the transport characteristics of different gases in the composite membrane are summarized and discussed. The limitations and perspectives of the molecular simulation method in the study of the gas membrane separation process are also presented to rationalize its potential and innovative applications. This review provides a more comprehensive reference for promoting the materials' design and engineering application of the gas separation membrane.
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Affiliation(s)
- Yilin Liu
- School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
| | - Na Li
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
| | - Xin Cui
- School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
| | - Weichao Yan
- School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
| | - Jincai Su
- School of Life Sciences & Chemical Technology, Ngee Ann Polytechnic, 535 Clementi Road, Singapore 599489, Singapore
| | - Liwen Jin
- School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, China
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Longo M, Monteleone M, Esposito E, Fuoco A, Tocci E, Ferrari MC, Comesaña-Gándara B, Malpass-Evans R, McKeown NB, Jansen JC. Thin Film Composite Membranes Based on the Polymer of Intrinsic Microporosity PIM-EA(Me 2)-TB Blended with Matrimid ®5218. MEMBRANES 2022; 12:881. [PMID: 36135900 PMCID: PMC9502825 DOI: 10.3390/membranes12090881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/25/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
In this work, thin film composite (TFC) membranes were fabricated with the selective layer based on a blend of polyimide Matrimid®5218 and polymer of intrinsic microporosity (PIM) composed of Tröger's base, TB, and dimethylethanoanthracene units, PIM-EA(Me2)-TB. The TFCs were prepared with different ratios of the two polymers and the effect of the PIM content in the blend of the gas transport properties was studied for pure He, H2, O2, N2, CH4, and CO2 using the well-known time lag method. The prepared TFC membranes were further characterized by IR spectroscopy and scanning electron microscopy (SEM). The role of the support properties for the TFC membrane preparation was analysed for four different commercial porous supports (Nanostone Water PV 350, Vladipor Fluoroplast 50, Synder PAN 30 kDa, and Sulzer PAN UF). The Sulzer PAN UF support with a relatively small pore size favoured the formation of a defect-free dense layer. All the TFC membranes supported on Sulzer PAN UF presented a synergistic enhancement in CO2 permeance, and CO2/CH4 and CO2/N2 ideal selectivity. The permeance increased about two orders of magnitude with respect to neat Matrimid, up to ca. 100 GPU, the ideal CO2/CH4 selectivity increased from approximately 10 to 14, and the CO2/N2 selectivity from approximately 20 to 26 compared to the thick dense reference membrane of PIM-EA(Me2)-TB. The TFC membranes exhibited lower CO2 permeances than expected on the basis of their thickness-most likely due to enhanced aging of thin films and to the low surface porosity of the support membrane, but a higher selectivity for the gas pairs CO2/N2, CO2/CH4, O2/N2, and H2/N2.
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Affiliation(s)
- Mariagiulia Longo
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci, 17/C, 87036 Rende, Italy
| | - Marcello Monteleone
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci, 17/C, 87036 Rende, Italy
| | - Elisa Esposito
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci, 17/C, 87036 Rende, Italy
| | - Alessio Fuoco
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci, 17/C, 87036 Rende, Italy
| | - Elena Tocci
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci, 17/C, 87036 Rende, Italy
| | - Maria-Chiara Ferrari
- School of Engineering, University of Edinburgh, Robert Stevenson Road, Edinburgh EH9 3FB, UK
| | - Bibiana Comesaña-Gándara
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, UK
| | - Richard Malpass-Evans
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, UK
| | - Neil B. McKeown
- EaStCHEM, School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, UK
| | - Johannes C. Jansen
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci, 17/C, 87036 Rende, Italy
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