1
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Ozcan A, Fan D, Datta SJ, Diaz-Marquez A, Semino R, Cheng Y, Joarder B, Eddaoudi M, Maurin G. Tuning MOF/polymer interfacial pore geometry in mixed matrix membrane for upgrading CO 2 separation performance. SCIENCE ADVANCES 2024; 10:eadk5846. [PMID: 38985866 PMCID: PMC11235163 DOI: 10.1126/sciadv.adk5846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 06/05/2024] [Indexed: 07/12/2024]
Abstract
The current paradigm considers the control of the MOF/polymer interface mostly for achieving a good compatibility between the two components to ensure the fabrication of continuous mixed-matrix metal-organic framework (MMMOF) membranes. Here, we unravel that the interfacial pore shape nanostructure plays a key role for an optimum molecular transport. The prototypical ultrasmall pore AlFFIVE-1-Ni MOF was assembled with the polymer PIM-1 to design a composite with gradually expanding pore from the MOF entrance to the MOF/polymer interfacial region. Concentration gradient-driven molecular dynamics simulations demonstrated that this pore nanostructuring enables an optimum guided path for the gas molecules at the MOF/polymer interface that decisively leads to an acceleration of the molecular transport all along the MMMOF membrane. This numerical prediction resulted in the successful fabrication of a [001]-oriented nanosheets AlFFIVE-1-Ni/PIM-1 MMMOF membrane exhibiting an excellent CO2 permeability, better than many MMMs, and ideally associated with a sufficiently high CO2/CH4 selectivity that makes this membrane very promising for natural gas/biogas purification.
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Affiliation(s)
- Aydin Ozcan
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
- Materials Technologies, TÜBITAK Marmara Research Center, 41470 Gebze, Kocaeli, Türkiye
| | - Dong Fan
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
- School of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, P.R. China
| | - Shuvo Jit Datta
- Division of Physical Science and Engineering (PSE), Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, Functional Materials Design, Discovery and Development (FMD3), KAUST, Thuwal 23955-6900, Saudi Arabia
| | | | - Rocio Semino
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
- CNRS, Physico-chimie des Electrolytes et Nanosystèmes Interfaciaux, PHENIX, Sorbonne Université, F-75005 Paris, France
| | - Youdong Cheng
- Division of Physical Science and Engineering (PSE), Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, Functional Materials Design, Discovery and Development (FMD3), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Biplab Joarder
- Division of Physical Science and Engineering (PSE), Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, Functional Materials Design, Discovery and Development (FMD3), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Mohamed Eddaoudi
- Division of Physical Science and Engineering (PSE), Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, Functional Materials Design, Discovery and Development (FMD3), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Guillaume Maurin
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
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Li B, Liu X, He X, Liu J, Mao S, Tao W, Li Z. Amidation-Reaction Strategy Constructs Versatile Mixed Matrix Composite Membranes towards Efficient Volatile Organic Compounds Adsorption and CO 2 Separation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310644. [PMID: 38386306 DOI: 10.1002/smll.202310644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/06/2024] [Indexed: 02/23/2024]
Abstract
Mixed matrix composite membranes (MMCMs) have shown advantages in reducing VOCs and CO2 emissions. Suitable composite layer, substrate, and good compatibility between the filler and the matrix in the composite layer are critical issues in designing MMCMs. This work develops a high-performance UiO-66-NA@PDMS/MCE for VOCs adsorption and CO2 permea-selectivity, based on a simple and facile fabrication of composite layer using amidation-reaction approach on the substrate. The composite layer shows a continuous morphological appearance without interface voids. This outstanding compatibility interaction between UiO-66-NH2 and PDMS is confirmed by molecular simulations. The Si─O functional group and UiO-66-NH2 in the layer leads to improved VOCs adsorption via active sites, skeleton interaction, electrostatic interaction, and van der Waals force. The layer and ─CONH─ also facilitate CO2 transport. The MMCMs show strong four VOCs adsorption and high CO2 permeance of 276.5 GPU with a selectivity of 36.2. The existence of VOCs in UiO-66-NA@PDMS/MCE increases the polarity and fine-tunes the pore size of UiO-66-NH2, improving the affinity towards CO2 and thus promoting the permea-selectivity for CO2, which is further verified by GCMC and EMD methods. This work is expected to offer a facile composite layer manufacturing method for MMCMs with high VOC adsorption and CO2 permea-selectivity.
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Affiliation(s)
- Boyu Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Xiaohui Liu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Xuanting He
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Jiaxiang Liu
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China
| | - Shun Mao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Wenquan Tao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Zhuo Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
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3
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He X, Wu Z, Lu J, Liu J, Li B, Liu X, Tao W, Li Z. A Sunlight-Driven Self-Cleaning CuCo-MOF Composite Membrane for Highly Efficient Emulsion Separation and Water Purification. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402589. [PMID: 38881318 DOI: 10.1002/smll.202402589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/09/2024] [Indexed: 06/18/2024]
Abstract
The fouling phenomenon of membranes has hindered the rapid development of separation technology in wastewater treatment. The integration of materials into membranes with both excellent separation performance and self-cleaning properties still pose challenges. Here, a self-assembled composite membrane with solar-driven self-cleaning performance is reported for the treatment of complex oil-water emulsions. The mechanical robustness of the composite membrane is enhanced by the electrostatic attraction between chitosan and metal-organic frameworks (MOF) CuCo-HHTP as well as the crosslinking effect of glutaraldehyde. Molecular dynamics (MD) simulations also revealed the hydrogen bonding interaction between chitosan and CuCo-HHTP. The composite membrane of CuCo-HHTP-5@CS/MPVDF exhibits a high flux ranging from 700.6 to 2350.6 L∙m-2∙h-1∙bar-1 and excellent separation efficiency (>99.0%) for various oil-water emulsions, including crude oil, kerosene, and other light oils. The addition of CuCo-HHTP shows remarkable photothermal effects, thus demonstrating excellent solar-driven self-cleaning capability and antibacterial performance (with an efficiency of ≈100%). Furthermore, CuCo-HHTP-5@CS/MPVDF can activate peroxomonosulfate (PMS) under sunlight, quickly removing oil-fouling and dyes. Density functional theory (DFT) calculations indicate that the bimetallic sites of Cu and Co in CuCo-HHTP effectively promoted the activation of PMS. This study provides distinctive insights into the multifaceted applications of MOFs-derived photothermal anti-fouling composite membranes.
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Affiliation(s)
- Xuanting He
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Zixuan Wu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Jihan Lu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Jiaxiang Liu
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, China
| | - Boyu Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Xiaohui Liu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Wenquan Tao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Zhuo Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
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4
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Hardian R, Jia J, Diaz-Marquez A, Naskar S, Fan D, Shekhah O, Maurin G, Eddaoudi M, Szekely G. Design of Mixed-Matrix MOF Membranes with Asymmetric Filler Density and Intrinsic MOF/Polymer Compatibility for Enhanced Molecular Sieving. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314206. [PMID: 38517323 DOI: 10.1002/adma.202314206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/03/2024] [Indexed: 03/23/2024]
Abstract
The separation of high-value-added chemicals from organic solvents is important for many industries. Membrane-based nanofiltration offers a more energy-efficient separation than the conventional thermal processes. Conceivably, mixed-matrix membranes (MMMs), encompassing metal-organic frameworks (MOFs) as fillers, are poised to promote selective separation via molecular sieving, synergistically combining polymers flexibility and fine-tuned porosity of MOFs. Nevertheless, conventional direct mixing of MOFs with polymer solutions results in underutilization of the MOF fillers owing to their uniform cross-sectional distribution. Therefore, in this work, a multizoning technique is proposed to produce MMMs with an asymmetric-filler density, in which the MOF fillers are distributed only on the surface of the membrane, and a seamless interface at the nanoscale. The design strategy demonstrates five times higher MOF surface coverage, which results in a solvent permeance five times higher than that of conventional MMMs while maintaining high selectivity. Practically, MOFs are paired with polymers of similar chemical nature to enhance their adhesion without the need for surface modification. The approach offers permanently accessible MOF porosity, which translates to effective molecular sieving, as exemplified by the polybenzimidazole and Zr-BI-fcu-MOF system. The findings pave the way for the development of composite materials with a seamless interface.
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Affiliation(s)
- Rifan Hardian
- Advanced Membranes & Porous Materials Center, Physical Sciences and Engineering Division (PSE), Sustainable Separation Engineering Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Jiangtao Jia
- Advanced Membranes & Porous Materials Center, Physical Sciences and Engineering Division (PSE), Functional Materials Design Discovery, and Development Laboratory (FMD3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | | | - Supriyo Naskar
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, 34293, France
| | - Dong Fan
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, 34293, France
| | - Osama Shekhah
- Advanced Membranes & Porous Materials Center, Physical Sciences and Engineering Division (PSE), Functional Materials Design Discovery, and Development Laboratory (FMD3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Guillaume Maurin
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, 34293, France
| | - Mohamed Eddaoudi
- Advanced Membranes & Porous Materials Center, Physical Sciences and Engineering Division (PSE), Functional Materials Design Discovery, and Development Laboratory (FMD3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Chemical Science Program, Physical Science and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Gyorgy Szekely
- Advanced Membranes & Porous Materials Center, Physical Sciences and Engineering Division (PSE), Sustainable Separation Engineering Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Chemical Engineering Program, Physical Science and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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5
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Gulbalkan H, Aksu GO, Ercakir G, Keskin S. Accelerated Discovery of Metal-Organic Frameworks for CO 2 Capture by Artificial Intelligence. Ind Eng Chem Res 2024; 63:37-48. [PMID: 38223500 PMCID: PMC10785804 DOI: 10.1021/acs.iecr.3c03817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 01/16/2024]
Abstract
The existence of a very large number of porous materials is a great opportunity to develop innovative technologies for carbon dioxide (CO2) capture to address the climate change problem. On the other hand, identifying the most promising adsorbent and membrane candidates using iterative experimental testing and brute-force computer simulations is very challenging due to the enormous number and variety of porous materials. Artificial intelligence (AI) has recently been integrated into molecular modeling of porous materials, specifically metal-organic frameworks (MOFs), to accelerate the design and discovery of high-performing adsorbents and membranes for CO2 adsorption and separation. In this perspective, we highlight the pioneering works in which AI, molecular simulations, and experiments have been combined to produce exceptional MOFs and MOF-based composites that outperform traditional porous materials in CO2 capture. We outline the future directions by discussing the current opportunities and challenges in the field of harnessing experiments, theory, and AI for accelerated discovery of porous materials for CO2 capture.
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Affiliation(s)
| | | | - Goktug Ercakir
- Department of Chemical and Biological
Engineering, Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Seda Keskin
- Department of Chemical and Biological
Engineering, Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
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6
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Dassouki K, Dasgupta S, Dumas E, Steunou N. Interfacing metal organic frameworks with polymers or carbon-based materials: from simple to hierarchical porous and nanostructured composites. Chem Sci 2023; 14:12898-12925. [PMID: 38023506 PMCID: PMC10664523 DOI: 10.1039/d3sc03659f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
In the past few years, metal organic frameworks (MOFs) have been assembled with (bio)polymers and a series of carbon-based materials (graphene, graphene oxide, carbon nanotubes, carbon quantum dots, etc.) leading to a wide range of composites differing in their chemical composition, pore structure and functionality. The objective was mainly to overcome the limitations of MOFs in terms of mechanical properties, chemical stability and processability while imparting novel functionality (electron conductivity, (photo)catalytic activity, etc.) and hierarchical porosity. These composites were considered for numerous applications including gas/liquid adsorption and separation, (photo)catalysis, biomedicine, energy storage, conversion and so on. The performance of such composites depends strongly on their microstructural and physico-chemical properties which are mainly driven by the chemical strategies used to design and process such composites. In this perspective article, we propose to cover this topic and provide a useful survey of recent progress in the synthesis and design of MOFs-carbon material composites. This article will describe the development of composites with increasing complexity in terms of porous architecture, spatial structuration and organisation, and functionality.
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Affiliation(s)
- Khaled Dassouki
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St Quentin en Yvelines, Université Paris Saclay Versailles France
| | - Sanchari Dasgupta
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St Quentin en Yvelines, Université Paris Saclay Versailles France
| | - Eddy Dumas
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St Quentin en Yvelines, Université Paris Saclay Versailles France
| | - Nathalie Steunou
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St Quentin en Yvelines, Université Paris Saclay Versailles France
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7
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Naskar S, Fan D, Ghoufi A, Maurin G. Microscopic insight into the shaping of MOFs and its impact on CO 2 capture performance. Chem Sci 2023; 14:10435-10445. [PMID: 37799984 PMCID: PMC10548504 DOI: 10.1039/d3sc04218a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/06/2023] [Indexed: 10/07/2023] Open
Abstract
The traditional synthesis method produces microcrystalline powdered MOFs, which prevents direct implementation in real-world applications which demand strict control of shape, morphology and physical properties. Therefore, shaping of MOFs via the use of binders is of paramount interest for their practical use in gas adsorption/separation, catalysis, sensors, etc. However, so far, the binders have been mostly selected by trial-and-error without anticipating the adhesion between the MOF and binder components to ensure the processability of homogeneous and mechanically stable shaped MOFs and the impact of the shaping on the intrinsic properties of the MOFs has been overlooked. Herein, we deliver a first systematic multiscale computational exploration of MOF/binder composites by selecting CALF-20, a prototypical MOF for real application in the field of CO2 capture, and a series of binders that cover a rather broad spectrum of properties in terms of rigidity/flexibility, porosity, and chemical functionality. The adhesion between the two components and hence the effectiveness of the shaping as well as the impact of the overall porosity of the CALF-20/binder on the CO2/N2 selectivity, CO2 sorption capacity and kinetics was analyzed. Shaping of CALF-20 by carboxymethyl cellulose was predicted to enable a fair compromise between excellent adhesion between the two components, whilst maintaining high CO2/N2 selectivity, large CO2 uptake and CO2 transport as fast as in the CALF-20. This multiscale computational tool paves the way towards the selection of an appropriate binder to achieve an optimum shaping of a given MOF in terms of processability whilst maintaining its high level of performance.
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Affiliation(s)
- Supriyo Naskar
- ICGM, Université de Montpellier, CNRS, ENSCM Montpellier 34293 France
| | - Dong Fan
- ICGM, Université de Montpellier, CNRS, ENSCM Montpellier 34293 France
| | - Aziz Ghoufi
- Institut de Physique de Rennes, IPR, UMR CNRS 6251 263 Avenue du Général Leclerc 35042 Rennes France
- Univ Paris-East Creteil, CNRS, ICMPE (UMR 7182) 2 rue Henri Dunant Thiais F-94320 France
| | - Guillaume Maurin
- ICGM, Université de Montpellier, CNRS, ENSCM Montpellier 34293 France
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8
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Carta M, Antonangelo AR, Jansen JC, Longo M. The Difference in Performance and Compatibility between Crystalline and Amorphous Fillers in Mixed Matrix Membranes for Gas Separation (MMMs). Polymers (Basel) 2023; 15:2951. [PMID: 37447596 DOI: 10.3390/polym15132951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/17/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
An increasing number of high-performing gas separation membranes is reported almost on a daily basis, yet only a few of them have reached commercialisation while the rest are still considered pure research outcomes. This is often attributable to a rapid change in the performance of these separation systems over a relatively short time. A common approach to address this issue is the development of mixed matrix membranes (MMMs). These hybrid systems typically utilise either crystalline or amorphous additives, so-called fillers, which are incorporated into polymeric membranes at different loadings, with the aim to improve and stabilise the final gas separation performance. After a general introduction to the most relevant models to describe the transport properties in MMMs, this review intends to investigate and discuss the main advantages and disadvantages derived from the inclusion of fillers of different morphologies. Particular emphasis will be given to the study of the compatibility at the interface between the filler and the matrix created by the two different classes of additives, the inorganic and crystalline fillers vs. their organic and amorphous counterparts. It will conclude with a brief summary of the main findings.
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Affiliation(s)
- Mariolino Carta
- Department of Chemistry, Faculty of Science and Engineering, Swansea University, Grove Building, Singleton Park, Swansea SA2 8PP, UK
| | - Ariana R Antonangelo
- Department of Chemistry, Faculty of Science and Engineering, Swansea University, Grove Building, Singleton Park, Swansea SA2 8PP, UK
| | - Johannes Carolus Jansen
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci 17/C, 87036 Rende, Italy
| | - Mariagiulia Longo
- Institute on Membrane Technology, National Research Council of Italy (CNR-ITM), Via P. Bucci 17/C, 87036 Rende, Italy
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9
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Zhu B, He S, Yang Y, Li S, Lau CH, Liu S, Shao L. Boosting membrane carbon capture via multifaceted polyphenol-mediated soldering. Nat Commun 2023; 14:1697. [PMID: 36973263 PMCID: PMC10043006 DOI: 10.1038/s41467-023-37479-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 03/14/2023] [Indexed: 03/29/2023] Open
Abstract
Advances in membrane technologies are significant for mitigating global climate change because of their low cost and easy operation. Although mixed-matrix membranes (MMMs) obtained via the combination of metal-organic frameworks (MOFs) and a polymer matrix are promising for energy-efficient gas separation, the achievement of a desirable match between polymers and MOFs for the development of advanced MMMs is challenging, especially when emerging highly permeable materials such as polymers of intrinsic microporosity (PIMs) are deployed. Here, we report a molecular soldering strategy featuring multifunctional polyphenols in tailored polymer chains, well-designed hollow MOF structures, and defect-free interfaces. The exceptional adhesion nature of polyphenols results in dense packing and visible stiffness of PIM-1 chains with strengthened selectivity. The architecture of the hollow MOFs leads to free mass transfer and substantially improves permeability. These structural advantages act synergistically to break the permeability-selectivity trade-off limit in MMMs and surpass the conventional upper bound. This polyphenol molecular soldering method has been validated for various polymers, providing a universal pathway to prepare advanced MMMs with desirable performance for diverse applications beyond carbon capture.
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Affiliation(s)
- Bin Zhu
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Shanshan He
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Yan Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Songwei Li
- Key Laboratory of Materials Processing and Mold (Ministry of Education), National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China
| | - Cher Hon Lau
- School of Engineering, The University of Edinburgh, Edinburgh, UK
| | - Shaomin Liu
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Australia
| | - Lu Shao
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.
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10
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Hirosawa F, Watanabe K, Miyagawa M, Takaba H. Direct evaluation of void effect on gas permeation in mixed matrix membrane by non-equilibrium molecular dynamics. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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11
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Ouinten ML, Szymczyk A, Ghoufi A. Molecular Dynamics Simulation Study of Organic Solvents Confined in PIM-1 and P84 Polyimide Membranes. J Phys Chem B 2023; 127:1237-1243. [PMID: 36696629 DOI: 10.1021/acs.jpcb.2c05796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Organic solvent nanofiltration (OSN) has recently proved to be a promising separation process thanks to the development of membrane materials with suitable resistance toward organic solvents. Among those materials, P84 polyimide membranes are currently the most used in OSN while PIM-1 membranes have recently attracted attention due to their high permeance in apolar solvents and alcohols. Both P84 and PIM-1 membranes have nanosized free volumes, and their separation performance is finely connected to polymer/solvent interactions. Consequently, modeling OSN membranes at the molecular scale is highly desirable in order to rationalize experimental observations and gain a deeper insight into the molecular mechanisms ruling solvent and solute permeation. A prerequisite for understanding solvent transport through OSN membranes is therefore to characterize the membrane/solvent interactions at the molecular level. For that purpose, we carried out molecular simulations of three different solvents, acetone, methanol, and toluene in contact with P84 and PIM-1 membranes. The solvent uptake by both membranes was found to be correlated to the degree of confinement of the solvent, the polymer swelling ability and polymer/solvent interactions. The translational dynamics of the solvent molecules in the PIM-1 membrane was found to be correlated with the solvent viscosity due to the relatively large pores of this membrane. That was not the case with the P84 membrane, which has a much denser structure than the PIM-1 membrane and for which it was observed that the translational dynamics of the confined solvent molecules was directly correlated to the affinity between the P84 polymer and the solvent.
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Affiliation(s)
- Mohammed-Lamine Ouinten
- Université Rennes, CNRS, IPR (Institut de Physique de Rennes) - UMR 6251F-35000Rennes, France.,Université Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226F-35000Rennes, France
| | - Anthony Szymczyk
- Université Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226F-35000Rennes, France
| | - Aziz Ghoufi
- Université Rennes, CNRS, IPR (Institut de Physique de Rennes) - UMR 6251F-35000Rennes, France
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12
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Palomba JM, Saygin V, Brown KA. Experimental observation of metal-organic framework-polymer interaction forces and intercalation. Chem Commun (Camb) 2023; 59:290-293. [PMID: 36477153 DOI: 10.1039/d2cc06381f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
We attach a MOF crystallite to an atomic force microscope cantilever to realize a system for rapidly and quantitatively studying the interaction between single-crystal MOFs and polymer films. Using this method, we find evidence of polymer intercalation into MOF pores. This approach can accelerate composite design.
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Affiliation(s)
- Joseph M Palomba
- Soldier Protection Directorate, U.S. Army Combat Capabilities Development Command Soldier Center, Natick, MA, 01760, USA
| | - Verda Saygin
- Department of Mechanical Engineering, Boston University, 110 Cummington Mall, Boston, Massachusetts 02215, USA.
| | - Keith A Brown
- Department of Mechanical Engineering, Boston University, 110 Cummington Mall, Boston, Massachusetts 02215, USA. .,Physics Department and Division of Materials Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA
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13
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Hansen solubility parameters-guided mixed matrix membranes with linker-exchanged metal-organic framework fillers showing enhanced gas separation performance. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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14
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Bonilla MR, García Daza FA, Cortés HA, Carrasco J, Akhmatskaya E. On the interfacial lithium dynamics in Li7La3Zr2O12:poly(ethylene oxide) (LiTFSI) composite polymer-ceramic solid electrolytes under strong polymer phase confinement. J Colloid Interface Sci 2022; 623:870-882. [DOI: 10.1016/j.jcis.2022.05.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/30/2022] [Accepted: 05/11/2022] [Indexed: 11/25/2022]
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15
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Li Y, Li SH, Xu LH, Mao H, Zhang AS, Zhao ZP. Highly selective PDMS membranes embedded with ILs-decorated halloysite nanotubes for ethyl acetate pervaporation separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Ouinten ML, Szymczyk A, Ghoufi A. Interactions between methanol/toluene binary mixtures and an organic solvent nanofiltration PIM-1 membrane. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Yoshimoto Y, Tomita Y, Sato K, Higashi S, Yamato M, Takagi S, Kawakami H, Kinefuchi I. Gas Adsorption and Diffusion Behaviors in Interfacial Systems Composed of a Polymer of Intrinsic Microporosity and Amorphous Silica: A Molecular Simulation Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:7567-7579. [PMID: 35666952 DOI: 10.1021/acs.langmuir.2c00661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We investigate the adsorption and diffusion behaviors of CO2, CH4, and N2 in interfacial systems composed of a polymer of intrinsic microporosity (PIM-1) and amorphous silica using grand canonical Monte Carlo (GCMC) and molecular dynamics (MD) simulations. We build model systems of mixed matrix membranes (MMMs) with PIM-1 chains sandwiched between silica surfaces. Gas adsorption analysis using GCMC simulations shows that gas molecules are preferentially adsorbed in microcavities distributed near silica surfaces, resulting in an increase in the solubility coefficients of CO2, CH4, and N2 compared to bulk PIM-1. In contrast, diffusion coefficients obtained from MD simulations and then calibrated using the dual-mode sorption model show different tendencies depending on gas species: CO2 diffusivity decreases in MMMs compared to PIM-1, whereas CH4 and N2 diffusivities increase. These differences are attributed to competing effects of silica surfaces: the emergence of larger pores as a result of chain packing disruption, which enhances gas diffusion, and a quadrupole-dipole interaction between gas molecules and silica surface hydroxyl groups, which retards gas diffusion. The former has a greater impact on CH4 and N2 diffusivities, whereas the latter has a greater impact on CO2 diffusivity due to the strong quadrupole-dipole interaction between CO2 and surface hydroxyls. These findings add to our understanding of gas adsorption and diffusion behaviors in the vicinity of PIM-1/silica interfaces, which are unobtainable in experimental studies.
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Affiliation(s)
- Yuta Yoshimoto
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuiko Tomita
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kohei Sato
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shiori Higashi
- Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Masafumi Yamato
- Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Shu Takagi
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroyoshi Kawakami
- Department of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Ikuya Kinefuchi
- Department of Mechanical Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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18
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Fan D, Ozcan A, Ramsahye NA, Maurin G, Semino R. Putting Forward NUS-8-CO 2H/PIM-1 as a Mixed Matrix Membrane for CO 2 Capture. ACS APPLIED MATERIALS & INTERFACES 2022; 14:16820-16829. [PMID: 35349279 DOI: 10.1021/acsami.2c00090] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Mixed matrix membranes (MMMs) composed of NUS-8 metal-organic framework (MOF) nanosheets dispersed into a polymer of intrinsic microporosity 1 (PIM-1) polymer matrix are known to be promising candidates for CO2/N2 separation because of a solubility-driven separation mechanism. In this work, we predict that a chemical functionalization of the organic linker of NUS-8 by a CO2-philic function confers an even better separation performance to the resulting MMM. Our simulations revealed that the NUS-8-CO2H/PIM-1 composite exhibits a 3-fold increase in CO2/N2 selectivity versus the NUS-8/PIM-1 analogue while achieving a high CO2 permeability (6700 barrer). We demonstrated that this improved level of performance is due to an increase both in the total MOF/polymer interfacial pore volume and in the CO2-affinity due to the chemical functionalization. These results suggest that an appropriate choice of chemical functionalization of a MOF is a promising strategy to improve gas separation performances for MMM composites that exhibit a solubility-driven separation mechanism.
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Affiliation(s)
- Dong Fan
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, 34293, France
| | - Aydin Ozcan
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, 34293, France
| | - Naseem A Ramsahye
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, 34293, France
| | - Guillaume Maurin
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, 34293, France
| | - Rocio Semino
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, 34293, France
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19
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Li L, Lin J, Fu F, Dai Z, Zhou G, Yang Z. Molecular-Level Understanding of Surface Roughness Boosting Segregation Behavior at the ZIF-8/Ionic Liquid Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4175-4187. [PMID: 35349284 DOI: 10.1021/acs.langmuir.1c02922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Here, we perform a series of classical molecular dynamics simulations for two different [HEMIM][DCA] and [BMIM][BF4] ionic liquids (ILs) on the ZIF-8 surface to explore the interfacial properties of metal-organic framework (MOFs)/IL composite materials at the molecular level. Our simulation results reveal that the interfacial structures of anions and cations on the ZIF-8 surface are dominated by the surface roughness due to the steric hindrance, which is extremely different from the driving mechanism based on solid-ion interactions of ILs on flat solid surfaces. At the ZIF-8/IL interfaces, the open sodalite (SOD) cages of the ZIF-8 surface can block most of the large-size cations outside and significantly boost the segregation behavior of anions and cations. In comparison with the [BMIM][BF4] IL, the [HEMIM][DCA] IL has much more anions entering into the open SOD cages owing to the combination of stronger ZIF-8-[DCA]- interactions and more ordered arrangement of [DCA]- anions on the ZIF-8 surface. Furthermore, more and stronger ZIF-8-[BF4]- hydrogen bonds (HBs) are found to exist on the cage edges than the ZIF-8-[DCA]- HBs, further preventing [BF4]- anions from entering into SOD cages. By more detailed analyses, we find that the hydrophobic interaction has an important influence on the interfacial structures of the side chains of [HEMIM]+ and [BMIM]+ cations, while the π-π stacking interaction plays a key role in determining the interfacial structures of the imidazolium rings of both cations. Our simulation results in this work provide a molecular-level understanding of the underlying driving mechanism on segregation behavior at the ZIF-8/IL interfaces.
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Affiliation(s)
- Li Li
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
| | - Jie Lin
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
| | - Fangjia Fu
- School of Mathematical Sciences, Peking University, Beijing 100871, People's Republic of China
| | - Zhongyang Dai
- National Supercomputing Center in Shenzhen, Shenzhen 518055, People's Republic of China
| | - Guobing Zhou
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
| | - Zhen Yang
- Institute of Advanced Materials (IAM), State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, People's Republic of China
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20
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Zhang S, Zheng H, Yang Y, Qian G, Cui Y. Cationic Metal–Organic Framework-Based Mixed-Matrix Membranes for Fast Sensing and Removal of Cr2O72− Within Water. Front Chem 2022; 10:852402. [PMID: 35295977 PMCID: PMC8918786 DOI: 10.3389/fchem.2022.852402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 02/10/2022] [Indexed: 11/28/2022] Open
Abstract
Considering that metal–organic framework (MOF)-polymer mixed-matrix membranes (MMMs) can overcome the drawbacks of intrinsic fragility and poor processability of pure-MOF membranes, we designed MOF-based MMMs for efficient removal and fast fluorescence sensing of heavily toxic ions within water systems simultaneously. In this work, a series of MOF-based MMMs are prepared by mixing a hydrolytically stable cationic [Eu7 (mtb)5(H2O)16]·NO3 8DMA·18H2O (denoted as Eu-mtb) MOF material into poly (vinylidene fluoride) with high loadings up to 70%. The free volume at the interface between the polymer and Eu-mtb particles, combined with the permanent porosity and uniform distribution of Eu-mtb particles, enables these MMMs to show fast enrichment of Cr2O72- from solutions and consequently have a full contact between the analyte and MOFs. The developed Eu-mtb MMM (70wt% loading) thus shows both efficient removal and exceptional fluorescence sensing of Cr2O72- in aqueous media. The overall adsorption capacity of the Eu-mtb MMM (70 wt% loading) for Cr2O72- reaches up to 33.34 mg/g, which is 3.4 times that of powder-form Eu-mtb. The detection limit of the Eu-mtb MMM (70 wt% loading) for Cr2O72- is around 5.73 nM, which is lower than that of the reported powder-form Eu-mtb. This work demonstrates that it is feasible to develop flexible luminescent MOF-based MMMs as a significant platform for efficient removal and sensitive sensing of pollutants from water systems simultaneously.
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Affiliation(s)
| | | | - Yu Yang
- *Correspondence: Yu Yang, ; Yuanjing Cui,
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21
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Zhang Y, Gao L, Ma S, Hu T. Cd (II) coordination polymer as a strip based fluorescence sensor for sensing Fe 3+ ions in aqueous system. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120525. [PMID: 34752993 DOI: 10.1016/j.saa.2021.120525] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/26/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
The design and construction of a sensor that can sensitively and conveniently recognize metal ions are essential for the treatment of industrial wastewater. In this work, {[Cd4(HL)2(pyp)2(H2O)2]·2H2O·1.5Diox}n (1) was synthesized under solvothermal condition and presented a 2D 3,5-connected layered network with the point symbol of {3.4.5} {32.4.5.62.74}, which was coated on the surface of polyvinylidene fluoride (PVDF) to construct a novel paper sensor (1@PVDF). Meanwhile, the stability of 1@PVDF was characterized by powder X-ray diffraction (PXRD) and thermogravimetric analysis (TGA). In addition, fluorescence sensing experiments of 1@PVDF sensor for cations in aqueous system indicated that it has high sensitivity for sensing Fe3+ ions with the detection limit (DL) of 4.0 × 10-8 M. By the characterization of PXRD, UV-vis spectra, ICP, XPS, time-resolved excited-state decay measurements, the sensing mechanisms of 1@PVDF for Fe3+ ions were attributed to the competitive absorption and interaction between 1 and Fe3+. And the sensing process of 1@PVDF for Fe3+ ions was static in the Fe3+ concentration of 0 to 0.05 mM. In addition, the binding energies of Fe3+ and Zn2+ with the framework of 1 were calculated by density functional theory (DFT), which further proved that there was an obvious interaction between Fe3+ and the uncoordinated O atom in 1. Based on the thin film technology, a portable and convenient paper-based probe has been developed for practical applications.
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Affiliation(s)
- Yujuan Zhang
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, PR China
| | - Lingling Gao
- College of Chemistry and Chemical Engineering, Jinzhong University, Taiyuan 030606, PR China
| | - Sai Ma
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, PR China
| | - Tuoping Hu
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, PR China.
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22
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Park K, Hyeon S, Kang KM, Eum K, Kim J, Kim DW, Jung HT. Long-Range alignment of liquid crystalline small molecules on Metal-Organic framework micropores by physical anchoring. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Soto C, Torres-Cuevas ES, González-Ortega A, Palacio L, Prádanos P, Freeman BD, Lozano ÁE, Hernandez A. Hydrogen Recovery by Mixed Matrix Membranes Made from 6FCl-APAF HPA with Different Contents of a Porous Polymer Network and Their Thermal Rearrangement. Polymers (Basel) 2021; 13:4343. [PMID: 34960894 PMCID: PMC8703379 DOI: 10.3390/polym13244343] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 01/16/2023] Open
Abstract
Mixed matrix membranes (MMMs) consisting of a blend of a hydroxypolyamide (HPA) matrix and variable loads of a porous polymer network (PPN) were thermally treated to induce the transformation of HPA to polybenzoxazole (β-TR-PBO). Here, the HPA matrix was a hydroxypolyamide having two hexafluoropropyilidene moieties, 6FCl-APAF, while the PPN was prepared by reacting triptycene (TRP) and trifluoroacetophenone (TFAP) in a superacid solution. The most probable size of the PPN particles was 75 nm with quite large distributions. The resulting membranes were analyzed by SEM and AFM. Up to 30% PPN loads, both SEM and AFM images confirmed quite planar surfaces, at low scale, with limited roughness. Membranes with high hydrogen permeability and good selectivity for the gas pairs H2/CH4 and H2/N2 were obtained. For H2/CO2, selectivity almost vanished after thermal rearrangement. In all cases, their hydrogen permeability increased with increasing loads of PPN until around 30% PPN with ulterior fairly abrupt decreasing of permeability for all gases studied. Thermal rearrangement of the MMMs resulted in higher permeabilities but lower selectivities. For all the membranes and gas pairs studied, the balance of permeability vs. selectivity surpassed the 1991 Robeson's upper bound, and approached or even exceeded the 2008 line, for MMMs having 30% PPN loads. In all cases, the HPA-MMMs before thermal rearrangement provided good selectivity versus permeability compromise, similar to their thermally rearranged counterparts but in the zone of high selectivity. For H2/CH4, H2/N2, these nonthermally rearranged MMMs approach the 2008 Robeson's upper bound while H2/CO2 gives selective transport favoring H2 on the 1991 Robeson's bound. Thus, attending to the energy cost of thermal rearrangement, it could be avoided in some cases especially when high selectivity is the target rather than high permeability.
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Affiliation(s)
- Cenit Soto
- Surfaces and Porous Materials (SMAP), Associated Research Unit to CSIC, Facultad de Ciencias, University of Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain; (C.S.); (L.P.); (P.P.)
- Institute of Sustainable Processes (ISP), Dr. Mergelina s/n, E-47011 Valladolid, Spain
| | - Edwin S. Torres-Cuevas
- McKetta Department of Chemical Engineering, Texas Materials Institute, The University of Texas at Austin, 200 E Dean Keeton St., Austin, TX 78712, USA; (E.S.T.-C.); (B.D.F.)
| | - Alfonso González-Ortega
- Department of Organic Chemistry, School of Sciences, Facultad de Ciencias, University of Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain;
| | - Laura Palacio
- Surfaces and Porous Materials (SMAP), Associated Research Unit to CSIC, Facultad de Ciencias, University of Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain; (C.S.); (L.P.); (P.P.)
- Institute of Sustainable Processes (ISP), Dr. Mergelina s/n, E-47011 Valladolid, Spain
| | - Pedro Prádanos
- Surfaces and Porous Materials (SMAP), Associated Research Unit to CSIC, Facultad de Ciencias, University of Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain; (C.S.); (L.P.); (P.P.)
- Institute of Sustainable Processes (ISP), Dr. Mergelina s/n, E-47011 Valladolid, Spain
| | - Benny D. Freeman
- McKetta Department of Chemical Engineering, Texas Materials Institute, The University of Texas at Austin, 200 E Dean Keeton St., Austin, TX 78712, USA; (E.S.T.-C.); (B.D.F.)
| | - Ángel E. Lozano
- Surfaces and Porous Materials (SMAP), Associated Research Unit to CSIC, Facultad de Ciencias, University of Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain; (C.S.); (L.P.); (P.P.)
- Departament of Macromolecular Chemistry, Institute for Polymer Science and Technology (ICTP-CSIC), Juan de la Cierva 3, E-28006 Madrid, Spain
- IU CINQUIMA, University of Valladolid, Paseo Belén 5, E-47011 Valladolid, Spain
| | - Antonio Hernandez
- Surfaces and Porous Materials (SMAP), Associated Research Unit to CSIC, Facultad de Ciencias, University of Valladolid, Paseo Belén 7, E-47011 Valladolid, Spain; (C.S.); (L.P.); (P.P.)
- Institute of Sustainable Processes (ISP), Dr. Mergelina s/n, E-47011 Valladolid, Spain
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24
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Wang L, Guo X, Zhang F, Li N. Blending and in situ thermally crosslinking of dual rigid polymers for anti-plasticized gas separation membranes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Han X, Chen W, Su R, Tian Y, Liu P, Guan P, Luo M, Han J, Cao X, Pan M, Chen M. Visualizing the {110} surface structure of equilibrium-form ZIF-8 crystals by low-dose Cs-corrected TEM. NANOSCALE 2021; 13:13215-13219. [PMID: 34477728 DOI: 10.1039/d1nr03829j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The properties of zeolitic imidazolate framework (ZIF) crystals highly depend on the structures of the low-energy surfaces, such as {110} of ZIF-8. However, the atomic/molecular configurations of the ZIF-8 {110} surfaces remain debated. In this study, the near-atomic-scale characterization of {110} surfaces of ZIF-8 is conducted by low-dose aberration-corrected transmission electron microscopy (TEM). The real-space images with mitigated surface delocalization by minimized spherical aberration of TEM, together with the solvent corrected surface energy calculations, demonstrate that the {110} surfaces of ZIF-8 crystals with an equilibrium-form rhombic morphology have a zigzag-type termination. This study provides experimental evidence to clarify the debated structure of {110} ZIF-8 surfaces and has important implications in understanding the crystal growth and surface related properties of ZIF-8.
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Affiliation(s)
- Xiaocang Han
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
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Daglar H, Erucar I, Keskin S. Recent advances in simulating gas permeation through MOF membranes. MATERIALS ADVANCES 2021; 2:5300-5317. [PMID: 34458845 PMCID: PMC8366394 DOI: 10.1039/d1ma00026h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 07/21/2021] [Indexed: 05/20/2023]
Abstract
In the last two decades, metal organic frameworks (MOFs) have gained increasing attention in membrane-based gas separations due to their tunable structural properties. Computational methods play a critical role in providing molecular-level information about the membrane properties and identifying the most promising MOF membranes for various gas separations. In this review, we discuss the current state-of-the-art in molecular modeling methods to simulate gas permeation through MOF membranes and review the recent advancements. We finally address current opportunities and challenges of simulating gas permeation through MOF membranes to guide the development of high-performance MOF membranes in the future.
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Affiliation(s)
- Hilal Daglar
- Department of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu Sariyer 34450 Istanbul Turkey +90-(212)-338-1362
| | - Ilknur Erucar
- Department of Natural and Mathematical Sciences, Faculty of Engineering, Ozyegin University, Cekmekoy 34794 Istanbul Turkey
| | - Seda Keskin
- Department of Chemical and Biological Engineering, Koc University, Rumelifeneri Yolu Sariyer 34450 Istanbul Turkey +90-(212)-338-1362
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27
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Htira T, Zid S, Zinet M, Espuche E. Finite Element Analysis of Gas Diffusion in Polymer Nanocomposite Systems Containing Rod-like Nanofillers. Polymers (Basel) 2021; 13:polym13162615. [PMID: 34451155 PMCID: PMC8399843 DOI: 10.3390/polym13162615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/22/2021] [Accepted: 08/03/2021] [Indexed: 11/16/2022] Open
Abstract
Polymer-based films with improved gas barrier properties are of great interest for a large range of applications, including packaging and coatings. The barrier effect is generally obtained via the addition of a sufficient amount of impermeable nanofillers within the polymer matrix. Due to their low environmental footprint, bio-based nanocomposites such as poly(lactic acid)-cellulose nanocrystal (PLA-CNC) nanocomposites seem to be an interesting alternative to synthetic-polymer-based nanocomposites. The morphology of such systems consists of the dispersion of impermeable rod-like fillers of finite length in a more permeable matrix. The aim of this work is to analyze, through finite element modeling (FEM), the diffusion behavior of 3D systems representative of PLA-CNC nanocomposites, allowing the determination of the nanocomposites' effective diffusivity. Parametric studies are carried out to evaluate the effects of various parameters, such as the filler volume fraction, aspect ratio, polydispersity, and agglomeration, on the improvement of the barrier properties. The role of the filler-matrix interfacial area (or interphase) is also investigated and is shown to be particularly critical to the overall barrier effect for highly diffusive interphases.
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28
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Bonilla MR, García Daza FA, Ranque P, Aguesse F, Carrasco J, Akhmatskaya E. Unveiling Interfacial Li-Ion Dynamics in Li 7La 3Zr 2O 12/PEO(LiTFSI) Composite Polymer-Ceramic Solid Electrolytes for All-Solid-State Lithium Batteries. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30653-30667. [PMID: 34161063 DOI: 10.1021/acsami.1c07029] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Unlocking the full potential of solid-state electrolytes (SSEs) is key to enabling safer and more-energy dense technologies than today's Li-ion batteries. In particular, composite materials comprising a conductive, flexible polymer matrix embedding ceramic filler particles are emerging as a good strategy to provide the combination of conductivity and mechanical and chemical stability demanded from SSEs. However, the electrochemical activity of these materials strongly depends on their polymer/ceramic interfacial Li-ion dynamics at the molecular scale, whose fundamental understanding remains elusive. While this interface has been explored for nonconductive ceramic fillers, atomistic modeling of interfaces involving a potentially more promising conductive ceramic filler is still lacking. We address this shortfall by employing molecular dynamics and enhanced Monte Carlo techniques to gain unprecedented insights into the interfacial Li-ion dynamics in a composite polymer-ceramic electrolyte, which integrates polyethylene oxide plus LiN(CF3SO2)2 lithium imide salt (LiTFSI), and Li-ion conductive cubic Li7La3Zr2O12 (LLZO) inclusions. Our simulations automatically produce the interfacial Li-ion distribution assumed in space-charge models and, for the first time, a long-range impact of the garnet surface on the Li-ion diffusivity is unveiled. Based on our calculations and experimental measurements of tensile strength and ionic conductivity, we are able to explain a previously reported drop in conductivity at a critical filler fraction well below the theoretical percolation threshold. Our results pave the way for the computational modeling of other conductive filler/polymer combinations and the rational design of composite SSEs.
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Affiliation(s)
- Mauricio R Bonilla
- BCAM-Basque Center for Applied Mathematics, Alameda de Mazarredo 14, E-48009 Bilbao, Spain
| | - Fabián A García Daza
- Department of Chemical Engineering and Analytical Science, The University of Manchester, M13 9PL Manchester, U.K
| | - Pierre Ranque
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
| | - Frederic Aguesse
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
| | - Javier Carrasco
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain
| | - Elena Akhmatskaya
- BCAM-Basque Center for Applied Mathematics, Alameda de Mazarredo 14, E-48009 Bilbao, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
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Carja ID, Tavares SR, Shekhah O, Ozcan A, Semino R, Kale VS, Eddaoudi M, Maurin G. Insights into the Enhancement of MOF/Polymer Adhesion in Mixed-Matrix Membranes via Polymer Functionalization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:29041-29047. [PMID: 34105948 DOI: 10.1021/acsami.1c03859] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
MOF-based mixed-matrix membranes (MMMs) prepared using standard routes often exhibit poor adhesion between polymers and MOFs. Herein, we report an unprecedented systematic exploration on polymer functionalization as the key to achieving defect-free MMMs. As a case study, we explored computationally MMMs based on the combination of the prototypical UiO-66(Zr) MOF with polymer of intrinsic porosity-1 (PIM-1) functionalized with various groups including amidoxime, tetrazole, and N-((2-ethanolamino)ethyl)carboxamide. Distinctly, the amidoxime-derivative PIM-1/UiO-66(Zr) MMM was predicted to express the desired enhanced MOF/polymer interfacial interactions and thus subsequently prepared and evaluated experimentally. Prominently, high-resolution transmission electron microscopy confirmed optimal adhesion between the two components in contrast to the nanometer-sized voids/defects shown by the pristine PIM-1/UiO-66(Zr) MMM. Notably, single-gas permeation measurements further corroborated the need of optimal MOF/polymer adhesion in order to effectively enable the MOF to play a role in the gas transport of the resulting MMM.
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Affiliation(s)
- Ionela-Daniela Carja
- Functional Materials, Design, Discovery & Development (FMD3), Advanced Membrane & Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | | | - Osama Shekhah
- Functional Materials, Design, Discovery & Development (FMD3), Advanced Membrane & Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Aydin Ozcan
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Rocio Semino
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Vinayak S Kale
- Functional Materials, Design, Discovery & Development (FMD3), Advanced Membrane & Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Mohamed Eddaoudi
- Functional Materials, Design, Discovery & Development (FMD3), Advanced Membrane & Porous Materials (AMPM) Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Guillaume Maurin
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier 34095, France
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30
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Browe MA, Landers J, Tovar TM, Mahle JJ, Balboa A, Gordon WO, Fukuto M, Karwacki CJ. Laponite-Incorporated UiO-66-NH 2-Polyethylene Oxide Composite Membranes for Protection against Chemical Warfare Agent Simulants. ACS APPLIED MATERIALS & INTERFACES 2021; 13:10500-10512. [PMID: 33606491 DOI: 10.1021/acsami.1c00397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A strategy is developed to enhance the barrier protection of polyethylene oxide (PEO)-metal-organic framework (MOF) composite films against chemical warfare agent simulants. To achieve enhanced protection, an impermeable high-aspect-ratio filler in the form of Laponite RD (LRD) clay platelets was incorporated into a composite PEO film containing MOF UiO-66-NH2. The inclusion of the platelets aids in mitigating permeation of inert hydrocarbons (octane) and toxic chemicals (2-chloroethyl ethyl sulfide, 2-CEES) of dimensions/chemistry similar to prominent vesicant threats while still maintaining high water vapor transport rates (WVTR). By utilizing small-angle neutron scattering, small-angle X-ray scattering, and wide-angle X-ray scattering, the LRD platelet alignment of the films was determined, and the structure of the films was correlated with performance as a barrier material. Performance of the membranes against toxic chemical threats was assessed using permeation testing of octane and 2-CEES, a common simulant for the vesicant mustard gas, and breathability of the membranes was assessed using WVTR measurements. To assess their robustness, chemical exposure (in situ diffuse reflectance infrared Fourier transform spectroscopy) and mechanical (tensile strength) measurements were also performed. It was demonstrated that the barrier performance of the film upon inclusion of the LRD platelets exceeds that of other MOF-polymer composites found in the literature and that this approach establishes a new path for improving permselective materials for chemical protection applications.
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Affiliation(s)
- Matthew A Browe
- DEVCOM Chemical Biological Center, 8198 Blackhawk Rd., Aberdeen Proving Ground, Maryland 21010, United States
| | - John Landers
- DEVCOM Chemical Biological Center, 8198 Blackhawk Rd., Aberdeen Proving Ground, Maryland 21010, United States
- National Research Council, Washington, D.C. 20001, United States
| | - Trenton M Tovar
- DEVCOM Chemical Biological Center, 8198 Blackhawk Rd., Aberdeen Proving Ground, Maryland 21010, United States
- National Research Council, Washington, D.C. 20001, United States
| | - John J Mahle
- DEVCOM Chemical Biological Center, 8198 Blackhawk Rd., Aberdeen Proving Ground, Maryland 21010, United States
| | - Alex Balboa
- DEVCOM Chemical Biological Center, 8198 Blackhawk Rd., Aberdeen Proving Ground, Maryland 21010, United States
| | - Wesley O Gordon
- DEVCOM Chemical Biological Center, 8198 Blackhawk Rd., Aberdeen Proving Ground, Maryland 21010, United States
| | - Masafumi Fukuto
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Christopher J Karwacki
- DEVCOM Chemical Biological Center, 8198 Blackhawk Rd., Aberdeen Proving Ground, Maryland 21010, United States
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31
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Paudel HP, Shi W, Hopkinson D, Steckel JA, Duan Y. Computational modelling of adsorption and diffusion properties of CO2 and CH4 in ZIF-8 for gas separation applications: a density functional theory approach. REACT CHEM ENG 2021. [DOI: 10.1039/d0re00416b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Understanding of zeolitic imidazolate framework-8 (ZIF-8) interaction with different gas molecules is crucial when ZIF-8 is used in gas separation.
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Affiliation(s)
- Hari P. Paudel
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
| | - Wei Shi
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
| | - David Hopkinson
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
| | - Janice A. Steckel
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
| | - Yuhua Duan
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
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32
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Fu Y, Guan H, Yin J, Kong X. Probing molecular motions in metal-organic frameworks with solid-state NMR. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213563] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Vornholt SM, Duncan MJ, Warrender SJ, Semino R, Ramsahye NA, Maurin G, Smith MW, Tan JC, Miller DN, Morris RE. Multifaceted Study of the Interactions between CPO-27-Ni and Polyurethane and Their Impact on Nitric Oxide Release Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:58263-58276. [PMID: 33325239 DOI: 10.1021/acsami.0c17937] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A multifaceted study involving focused ion beam scanning electron microscopy techniques, mechanical analysis, water adsorption measurements, and molecular simulations is employed to rationalize the nitric oxide release performance of polyurethane films containing 5, 10, 20, and 40 wt % of the metal-organic framework (MOF) CPO-27-Ni. The polymer and the MOF are first demonstrated to exhibit excellent compatibility. This is reflected in the even distribution and encapsulation of large wt % MOF loadings throughout the full thickness of the films and by the rather minimal influence of the MOF on the mechanical properties of the polymer at low wt %. The NO release efficiency of the MOF is attenuated by the polymer and found to depend on wt % of MOF loading. The formation of a fully connected network of MOF agglomerates within the films at higher wt % is proposed to contribute to a more complex guest transport in these formulations, resulting in a reduction of NO release efficiency and film ductility. An optimum MOF loading of 10 wt % is identified for maximizing NO release without adversely impacting the polymer properties. Bactericidal efficacy of released NO from the films is demonstrated against Pseudomonas aeruginosa, with a >8 log10 reduction in cell density observed after a contact period of 24 h.
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Affiliation(s)
- Simon M Vornholt
- School of Chemistry, University of St. Andrews, Purdie Building, St. Andrews KY16 9ST, U.K
| | - Morven J Duncan
- School of Chemistry, University of St. Andrews, Purdie Building, St. Andrews KY16 9ST, U.K
| | - Stewart J Warrender
- School of Chemistry, University of St. Andrews, Purdie Building, St. Andrews KY16 9ST, U.K
| | - Rocio Semino
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier 75005, France
| | - Naseem A Ramsahye
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier 75005, France
| | - Guillaume Maurin
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier 75005, France
| | - Martin W Smith
- Defence Science and Technology Laboratory (Dstl), Porton Down, Salisbury, Wiltshire SP4 0JQ, U.K
| | - Jin-Chong Tan
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, U.K
| | - David N Miller
- School of Chemistry, University of St. Andrews, Purdie Building, St. Andrews KY16 9ST, U.K
| | - Russell E Morris
- School of Chemistry, University of St. Andrews, Purdie Building, St. Andrews KY16 9ST, U.K
- Department of Physical and Macromolecular Chemistry, Faculty of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
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34
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Ahmad MZ, Castro-Muñoz R, Budd PM. Boosting gas separation performance and suppressing the physical aging of polymers of intrinsic microporosity (PIM-1) by nanomaterial blending. NANOSCALE 2020; 12:23333-23370. [PMID: 33210671 DOI: 10.1039/d0nr07042d] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In recent decades, polymers of intrinsic microporosity (PIMs), especially the firstly introduced PIM-1, have been actively explored for various membrane-based separation purposes and widely recognized as the next generation membrane materials of choice for gas separation due to their ultra-permeable characteristics. Unfortunately, the polymers suffer substantially the negative impacts of physical aging, a phenomenon that is primarily noticeable in high free volume polymers. The phenomenon occurs at the molecular level, which leads to changes in the physical properties, and consequently the separation performance and membrane durability. This review discusses the strategies that have been employed to manage the physical aging issue, with a focus on the approach of blending with nanomaterials to give mixed matrix membranes. A detailed discussion is provided on the types of materials used, their inherent properties, the effects on gas separation performance, and their benefits in the suppression of the aging problem.
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Affiliation(s)
- Mohd Zamidi Ahmad
- Organic Materials Innovation Center (OMIC), Department of Chemistry, University of Manchester, Oxford Road, M13 9PL, UK.
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35
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Xu K, Hu Q, Wu H, Guo S, Zhang F. Achieving directional migration of hindered phenols in polymer‐based damping hybrid via the construction of alternating layers. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kangming Xu
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
- College of Materials Science and Engineering Chongqing University of Arts and Sciences Chongqing China
| | - Qiaoman Hu
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
- College of Materials Science and Engineering Chongqing University of Arts and Sciences Chongqing China
| | - Hong Wu
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Shaoyun Guo
- State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan University Chengdu China
| | - Fengshun Zhang
- Institute of Chemical Materials China Academy of Engineering Physics Mianyang China
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Chmelik C, Gläser R, Haase J, Hwang S, Kärger J. Application of microimaging to diffusion studies in nanoporous materials. ADSORPTION 2020. [DOI: 10.1007/s10450-020-00279-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
AbstractMicroimaging on the basis of, respectively, interference microscopy and IR microscopy permit the observation of the distribution of guest molecules in nanoporous solids and their variation with time. Thus attainable knowledge of both concentration gradients and diffusion fluxes provides direct access to the underlying diffusion phenomena. This includes, in particular, the measurement of transport diffusion under transient, i. e. under non-equilibrium conditions, and of self- or tracer diffusion on considering the rate of tracer exchange. Correlating the difference in guest concentration close to the external surface to its equilibrium value with the influx into the nanoporous solid, microimaging does as well allow the direct determination of surface resistances. Examples illustrating the variety of information thus attainable include the comparison of mass transfer under equilibrium and non-equilibrium conditions, single- and multicomponent diffusion and chemical reactions. They, finally, introduce into the potentials of microimaging for an in-depth study of mass transfer in mixed-matrix membranes. This tutorial review may serve as first introduction into the topic. Further references are linked for the interested reader.
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Li H, Lv W, Xu J, Hu J, Liu H. Can flexible framework fillers keep breathing in mixed matrix membranes to enhance separation performance? J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Daglar H, Keskin S. Recent advances, opportunities, and challenges in high-throughput computational screening of MOFs for gas separations. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213470] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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39
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Cardo-type porous organic nanospheres: Tailoring interfacial compatibility in thermally rearranged mixed matrix membranes for improved hydrogen purification. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118414] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Balçık M, Tantekin-Ersolmaz SB, Ahunbay MG. Interfacial analysis of mixed-matrix membranes under exposure to high-pressure CO2. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118147] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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41
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Qian Q, Asinger PA, Lee MJ, Han G, Mizrahi Rodriguez K, Lin S, Benedetti FM, Wu AX, Chi WS, Smith ZP. MOF-Based Membranes for Gas Separations. Chem Rev 2020; 120:8161-8266. [PMID: 32608973 DOI: 10.1021/acs.chemrev.0c00119] [Citation(s) in RCA: 452] [Impact Index Per Article: 113.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Metal-organic frameworks (MOFs) represent the largest known class of porous crystalline materials ever synthesized. Their narrow pore windows and nearly unlimited structural and chemical features have made these materials of significant interest for membrane-based gas separations. In this comprehensive review, we discuss opportunities and challenges related to the formation of pure MOF films and mixed-matrix membranes (MMMs). Common and emerging separation applications are identified, and membrane transport theory for MOFs is described and contextualized relative to the governing principles that describe transport in polymers. Additionally, cross-cutting research opportunities using advanced metrologies and computational techniques are reviewed. To quantify membrane performance, we introduce a simple membrane performance score that has been tabulated for all of the literature data compiled in this review. These data are reported on upper bound plots, revealing classes of MOF materials that consistently demonstrate promising separation performance. Recommendations are provided with the intent of identifying the most promising materials and directions for the field in terms of fundamental science and eventual deployment of MOF materials for commercial membrane-based gas separations.
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Affiliation(s)
- Qihui Qian
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Patrick A Asinger
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Moon Joo Lee
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Gang Han
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Katherine Mizrahi Rodriguez
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Sharon Lin
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Francesco M Benedetti
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Albert X Wu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Won Seok Chi
- School of Polymer Science and Engineering, Chonnam National University, Buk-gu, Gwangju 61186, Korea
| | - Zachary P Smith
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Muschi M, Lalitha A, Sene S, Aureau D, Fregnaux M, Esteve I, Rivier L, Ramsahye N, Devautour‐Vinot S, Sicard C, Menguy N, Serre C, Maurin G, Steunou N. Formation of a Single‐Crystal Aluminum‐Based MOF Nanowire with Graphene Oxide Nanoscrolls as Structure‐Directing Agents. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mégane Muschi
- Institut des Matériaux Poreux de Paris UMR 8004 CNRS-ENS-ESPCI PSL research university Paris France
| | - Anusha Lalitha
- Institut Charles Gerhardt Montpellier Univ. Montpellier, CNRS, ENSCM Montpellier France
| | - Saad Sene
- Institut des Matériaux Poreux de Paris UMR 8004 CNRS-ENS-ESPCI PSL research university Paris France
| | - Damien Aureau
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
| | - Mathieu Fregnaux
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
| | - Imène Esteve
- Sorbonne Université UMR CNRS 7590 MNHN IRD Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie IMPMC 75005 Paris France
| | - Lucie Rivier
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
| | - Naseem Ramsahye
- Institut Charles Gerhardt Montpellier Univ. Montpellier, CNRS, ENSCM Montpellier France
| | | | - Clémence Sicard
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
| | - Nicolas Menguy
- Sorbonne Université UMR CNRS 7590 MNHN IRD Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie IMPMC 75005 Paris France
| | - Christian Serre
- Institut des Matériaux Poreux de Paris UMR 8004 CNRS-ENS-ESPCI PSL research university Paris France
| | - Guillaume Maurin
- Institut Charles Gerhardt Montpellier Univ. Montpellier, CNRS, ENSCM Montpellier France
| | - Nathalie Steunou
- Institut des Matériaux Poreux de Paris UMR 8004 CNRS-ENS-ESPCI PSL research university Paris France
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
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43
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Muschi M, Lalitha A, Sene S, Aureau D, Fregnaux M, Esteve I, Rivier L, Ramsahye N, Devautour‐Vinot S, Sicard C, Menguy N, Serre C, Maurin G, Steunou N. Formation of a Single‐Crystal Aluminum‐Based MOF Nanowire with Graphene Oxide Nanoscrolls as Structure‐Directing Agents. Angew Chem Int Ed Engl 2020; 59:10353-10358. [DOI: 10.1002/anie.202000795] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/16/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Mégane Muschi
- Institut des Matériaux Poreux de Paris UMR 8004 CNRS-ENS-ESPCI PSL research university Paris France
| | - Anusha Lalitha
- Institut Charles Gerhardt Montpellier Univ. Montpellier, CNRS, ENSCM Montpellier France
| | - Saad Sene
- Institut des Matériaux Poreux de Paris UMR 8004 CNRS-ENS-ESPCI PSL research university Paris France
| | - Damien Aureau
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
| | - Mathieu Fregnaux
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
| | - Imène Esteve
- Sorbonne Université UMR CNRS 7590 MNHN IRD Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie IMPMC 75005 Paris France
| | - Lucie Rivier
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
| | - Naseem Ramsahye
- Institut Charles Gerhardt Montpellier Univ. Montpellier, CNRS, ENSCM Montpellier France
| | | | - Clémence Sicard
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
| | - Nicolas Menguy
- Sorbonne Université UMR CNRS 7590 MNHN IRD Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie IMPMC 75005 Paris France
| | - Christian Serre
- Institut des Matériaux Poreux de Paris UMR 8004 CNRS-ENS-ESPCI PSL research university Paris France
| | - Guillaume Maurin
- Institut Charles Gerhardt Montpellier Univ. Montpellier, CNRS, ENSCM Montpellier France
| | - Nathalie Steunou
- Institut des Matériaux Poreux de Paris UMR 8004 CNRS-ENS-ESPCI PSL research university Paris France
- Institut Lavoisier de Versailles UMR CNRS 8180 Université de Versailles St Quentin en Yvelines Université Paris Saclay Versailles France
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Ye C, Wu X, Wu H, Yang L, Ren Y, Wu Y, Liu Y, Guo Z, Zhao R, Jiang Z. Incorporating nano-sized ZIF-67 to enhance selectivity of polymers of intrinsic microporosity membranes for biogas upgrading. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115497] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Proenza YG, Longo RL. Simulation of the Adsorption and Release of Large Drugs by ZIF-8. J Chem Inf Model 2020; 60:644-652. [PMID: 31790249 DOI: 10.1021/acs.jcim.9b00893] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The adsorption and release of two drugs 5FU (5-fluorouracil) and CAF (caffeine) into and from the ZIF-8 framework were simulated by the Gibbs-ensemble Monte Carlo approach employing two models for representing the sorbent: one without surface (ZIF-8P) and another with surface (ZIF-8S). The inner pores of ZIF-8S were inaccessible to the drugs, but accessible to the solvents (methanol or water). The ZIF-8P model is not recommended to describe the actual sorption processes because it lacks surface and solvent effects, which are reflected in the poor quantitative agreement with experimental results. The ZIF-8S model yielded results for the sorption of CAF in very close agreement with the experimental loading from methanol solution and release of the drug into water. For 5FU, the computer simulations provided qualitative agreements, which suggests that the sorbent-5FU interaction potentials should be improved. The excellent performance of the ZIF-8S model is due to its adequate description of the surface and by exposing adsorption sites such as undercoordinated zinc ions to interactions with large molecules. This was achieved by applying periodic conditions to a ZIF-8 nanocrystal, instead of an elementary cell, which is easy to generalize and used to describe several surface defects. Furthermore, the combination of this ZIF-8S model with the Monte Carlo method provides a very simple and efficient approach to simulate the inaccessibility of the ZIF-8 inner porosity to large molecules. Namely, any trial moves that inserted the drug within the pore were disregarded. This is a quite simple and general approach that can be promptly applied to a large number of MOF sorbents and of drugs that cannot access the inner pores.
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Affiliation(s)
- Yaicel G Proenza
- Departamento de Química Fundamental , Universidade Federal de Pernambuco, Cidade Universitária , Recife-PE 50740-560 , Brasil
| | - Ricardo L Longo
- Departamento de Química Fundamental , Universidade Federal de Pernambuco, Cidade Universitária , Recife-PE 50740-560 , Brasil
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Ozcan A, Semino R, Maurin G, Yazaydin AO. Modeling of Gas Transport through Polymer/MOF Interfaces: A Microsecond-Scale Concentration Gradient-Driven Molecular Dynamics Study. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2020; 32:1288-1296. [PMID: 32296263 PMCID: PMC7147253 DOI: 10.1021/acs.chemmater.9b04907] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/07/2020] [Indexed: 05/05/2023]
Abstract
Membrane-based separation technologies offer a cost-effective alternative to many energy-intensive gas separation processes, such as distillation. Mixed matrix membranes (MMMs) composed of polymers and metal-organic frameworks (MOFs) have attracted a great deal of attention for being promising systems to manufacture durable and highly selective membranes with high gas fluxes and high selectivities. Therefore, understanding gas transport through these MMMs is of significant importance. There has been longstanding speculation that the gas diffusion behavior at the interface formed between the polymer matrix and MOF particles would strongly affect the global performance of the MMMs due to the potential presence of nonselective voids or other defects. To shed more light on this paradigm, we have performed microsecond long concentration gradient-driven molecular dynamics (CGD-MD) simulations that deliver an unprecedented microscopic picture of the transport of H2 and CH4 as single components and as a mixture in all regions of the PIM-1/ZIF-8 membrane, including the polymer/MOF interface. The fluxes of the permeating gases are computed and the impact of the polymer/MOF interface on the H2/CH4 permselectivity of the composite membrane is clearly revealed. Specifically, we show that the poor compatibility between PIM-1 and ZIF-8, which manifests itself by the presence of nonselective void spaces at their interface, results in a decrease of the H2/CH4 permselectivity for the corresponding composite membrane as compared to the performances simulated for PIM-1 and ZIF-8 individually. We demonstrate that CGD-MD simulations based on an accurate atomistic description of the polymer/MOF composite is a powerful tool for characterization and understanding of gas transport and separation mechanisms in MMMs.
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Affiliation(s)
- Aydin Ozcan
- Department
of Chemical Engineering, University College
London, London WC1E 7JE, U.K.
| | - Rocio Semino
- Institut
Charles Gerhardt Montpellier, UMR 5253, CNRS, ENSCM, Université de Montpellier, Place E. Bataillon, 34095 Montpellier Cedex 05, France
| | - Guillaume Maurin
- Institut
Charles Gerhardt Montpellier, UMR 5253, CNRS, ENSCM, Université de Montpellier, Place E. Bataillon, 34095 Montpellier Cedex 05, France
| | - A. Ozgur Yazaydin
- Department
of Chemical Engineering, University College
London, London WC1E 7JE, U.K.
- E-mail:
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Kalaj M, Bentz KC, Ayala S, Palomba JM, Barcus KS, Katayama Y, Cohen SM. MOF-Polymer Hybrid Materials: From Simple Composites to Tailored Architectures. Chem Rev 2020; 120:8267-8302. [PMID: 31895556 DOI: 10.1021/acs.chemrev.9b00575] [Citation(s) in RCA: 298] [Impact Index Per Article: 74.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Metal-organic frameworks (MOFs) are inherently crystalline, brittle porous solids. Conversely, polymers are flexible, malleable, and processable solids that are used for a broad range of commonly used technologies. The stark differences between the nature of MOFs and polymers has motivated efforts to hybridize crystalline MOFs and flexible polymers to produce composites that retain the desired properties of these disparate materials. Importantly, studies have shown that MOFs can be used to influence polymer structure, and polymers can be used to modulate MOF growth and characteristics. In this Review, we highlight the development and recent advances in the synthesis of MOF-polymer mixed-matrix membranes (MMMs) and applications of these MMMs in gas and liquid separations and purifications, including aqueous applications such as dye removal, toxic heavy metal sequestration, and desalination. Other elegant ways of synthesizing MOF-polymer hybrid materials, such as grafting polymers to and from MOFs, polymerization of polymers within MOFs, using polymers to template MOFs, and the bottom-up synthesis of polyMOFs and polyMOPs are also discussed. This review highlights recent papers in the advancement of MOF-polymer hybrid materials, as well as seminal reports that significantly advanced the field.
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Affiliation(s)
- Mark Kalaj
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Kyle C Bentz
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Sergio Ayala
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Joseph M Palomba
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Kyle S Barcus
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Yuji Katayama
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States.,Asahi Kasei Corporation, 2-1 Samejima, Fuji-city, Shizuoka 416-8501, Japan
| | - Seth M Cohen
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
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48
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Yan C, Kayser F, Dieden R. Sensitivity enhancement via multiple contacts in the {1H–29Si}–1H cross polarization experiment: a case study of modified silica nanoparticle surfaces. RSC Adv 2020; 10:23016-23023. [PMID: 35520326 PMCID: PMC9054631 DOI: 10.1039/d0ra04995f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 06/10/2020] [Indexed: 01/21/2023] Open
Abstract
{1H–29Si}–1H double cross polarization inverse detection (DCPi) solid-state NMR, has recently been shown to be a powerful tool for studying molecules adsorbed on the silica surface. In this contribution, we develop an improved version (MCPi) which incorporates a block of multiple contact pulses, and quantitatively compare the sensitivities of MCPi and DCPi over a typical range of experimental parameters. The MCPi pulse sequence aims at higher sensitivity and robustness for studying samples with various relaxation characteristics. In the case of dimethyl sulfoxide (DMSO) molecules adsorbed on the silica surface, MCPi performs equally well or up to 2.5 times better than DCPi over a wide range of parameters. The applicability to and performance of MCPi on composite materials was demonstrated using a sample of polymer–silica composite, where significantly higher sensitivity could be achieved at very long total mixing times. The results also showed that both techniques are surface specific in the sense that only the groups close to the surface can be detected. In this paper we demonstrate {1H–29Si}–1H multiple cross polarization inverse detection (MCPi) solid state NMR as a robust technique for studying modified silica nanoparticle surfaces.![]()
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Affiliation(s)
- Chuanyu Yan
- Luxembourg Institute of Science and Technology
- Department of “Materials Research and Technology”
- L-4362 Esch-sur-Alzette
- Luxembourg
- University of Luxembourg
| | - François Kayser
- Goodyear Innovation Center Luxembourg
- L-7750 Colmar-Berg
- Luxembourg
| | - Reiner Dieden
- Luxembourg Institute of Science and Technology
- Department of “Materials Research and Technology”
- L-4362 Esch-sur-Alzette
- Luxembourg
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49
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Thomas A, Ahamed R, Prakash M. Selection of a suitable ZIF-8/ionic liquid (IL) based composite for selective CO2 capture: the role of anions at the interface. RSC Adv 2020; 10:39160-39170. [PMID: 35518407 PMCID: PMC9057324 DOI: 10.1039/d0ra07927h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 10/19/2020] [Indexed: 01/08/2023] Open
Abstract
The interfacial stability of hydrophilic/hydrophobic IL incorporated ZIF-8 is identified and the CO2 selectivity depends on the fluorinated anions in the IL.
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Affiliation(s)
- Anoopa Thomas
- Department of Chemistry
- Faculty of Engineering and Technology
- SRM Institute of Science and Technology
- Chennai
- India
| | - Rafiq Ahamed
- Department of Chemistry
- Faculty of Engineering and Technology
- SRM Institute of Science and Technology
- Chennai
- India
| | - Muthuramalingam Prakash
- Department of Chemistry
- Faculty of Engineering and Technology
- SRM Institute of Science and Technology
- Chennai
- India
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50
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Liu Y, Zhang J, Tan X. High Performance of PIM-1/ZIF-8 Composite Membranes for O 2/N 2 Separation. ACS OMEGA 2019; 4:16572-16577. [PMID: 31616837 PMCID: PMC6788045 DOI: 10.1021/acsomega.9b02363] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 09/19/2019] [Indexed: 05/31/2023]
Abstract
This work reports the preparation, characterization, and O2/N2 separation properties of composite membranes based on the polymer of intrinsic microporosity (PIM-1) and the zeolitic imidazolate framework (ZIF-8). Especially, the composite membranes were prepared by growing ZIF-8 nanoparticles on one side of the PIM-1 membrane in methanol. Fourier transform infrared spectroscopy and thermo-gravimetric analysis indicated that there is no strong chemical interaction between ZIF-8 nanoparticles and PIM-1 chains. Scanning electron microscopy images showed that ZIF-8 nanoparticles adhere well to the PIM-1 membrane surface. The pure-gas permeation results confirmed that growth of ZIF-8 on the PIM-1 membrane can enhance the performance of O2/N2 separation. Particularly, the O2/N2 separation performance of the PIM-1/ZIF-8-7 composite membrane exceeds the Robeson upper bound line.
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