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Membranes
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Research Progress of Metal-Organic-Framework (MOF) Membranes
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Research Progress of Metal-Organic-Framework (MOF) Membranes

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Applications".

Deadline for manuscript submissions: closed (14 August 2023) | Viewed by 12727

Special Issue Editor

Dr. Indrani Choudhuri

E-Mail Website
Guest Editor
Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
Interests: computational chemistry; material chemistry; bio-physical
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to invite you to the Special Issue “Study Progress of Metal-Organic-Framework (MOF) Membranes” to uncover the potential of MOFs as membranes for a wide range of applications. The discovery of MOFs opens significant opportunities for applications in the vast field due to their precise pore sizes and intrinsic diverse structures. However, there is still a lot of room for developments in the field of MOFs as membranes for a wide range of applications such as forward-osmosis (FO), reverse-osmosis (RO), nanofiltration (NF), and ultrafiltration (UF) processes in gas separation and chemical separation.
Despite the wide range of studies performed on mesoporous and microporous materials in the last decades, many problems are still unsolved, including:

  1. Development of new force fields may lead to new advancements in this area.
  2. Synthesis and theoretical modelling of new MOFs as efficient membrane materials, which always attract the interest of the scientific community.
  3. Kinetics of MOFs towards the filtration process is a prospering area.
  4. Industrialization of MOFs as membranes for gas and liquid separation.
  5. Kinetic pathways, mechanistic approaches, modelling and application of MOFs toward biomolecules.

This Special Issue aims to present recent advances in the function, structure, and dynamics of MOF membrane from various perspectives. Both original research articles and reviews are welcome. Areas of interest may include (but are not limited to) the following: Chemistry, Biochemistry, Physical Chemistry, Biophysics, Chemical Physics, Computational and Theoretical Chemistry and Multidisciplinary approaches will also be considered. We look forward to receiving your contributions.

Dr. Indrani Choudhuri
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Membranes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metal-organic frameworks (MOFs)
  • gas separation
  • chemical separation
  • liquid separation
  • forward-osmosis (FO)
  • reverse-osmosis (RO)
  • nanofiltration
  • ultrafiltration
  • methods and developments
  • MOF in virus detection

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Published Papers (3 papers)

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Research

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11 pages, 6811 KiB  
Communication
Fabrication of Polycrystalline Zeolitic Imidazolate Framework Membranes by a Vapor-Phase Seeding Method
by Zhiqin Qiang, Zihao Yi, Jun-Wei Wang, Rahul Sampat Khandge and Xiaoli Ma
Membranes 2023, 13(9), 782; https://doi.org/10.3390/membranes13090782 - 7 Sep 2023
Cited by 1 | Viewed by 1463
Abstract
The reliable fabrication of polycrystalline zeolitic imidazolate framework (ZIF) membranes continues to pose challenges for their industrial applications. Here, we present a vapor-phase seeding approach that integrates atomic layer deposition (ALD) with ligand vapor treatment to synthesize ZIF membranes with high propylene/propane separation [...] Read more.
The reliable fabrication of polycrystalline zeolitic imidazolate framework (ZIF) membranes continues to pose challenges for their industrial applications. Here, we present a vapor-phase seeding approach that integrates atomic layer deposition (ALD) with ligand vapor treatment to synthesize ZIF membranes with high propylene/propane separation performance. This method began with depositing a ZnO coating onto the support surface via ALD. The support underwent treatment with 2-methylimidazole vapor to transform ZnO to ZIF-8, forming the seed layer. Subsequent secondary growth was employed at near-room temperature, allowing the seeds to grow into a continuous membrane. ZIF-8 membranes made on macroporous ceramic support by this method consistently demonstrated propylene permeances above 1 × 10−8 mol Pa−1 m−2 s−1 and a propylene/propane separation factor exceeding 50. Moreover, we demonstrated the effectiveness of the vapor-phase seeding method in producing the ZIF-67 membrane. Full article
(This article belongs to the Special Issue Research Progress of Metal-Organic-Framework (MOF) Membranes)
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12 pages, 3495 KiB  
Article
Double-Layered Pebax® 3533/ZIF-8 Membranes with Single-Walled Carbon Nanotube Buckypapers as Support for Gas Separation
by Víctor Berned-Samatán, Carlos Téllez and Joaquín Coronas
Membranes 2023, 13(1), 71; https://doi.org/10.3390/membranes13010071 - 6 Jan 2023
Cited by 8 | Viewed by 2576
Abstract
Single-walled carbon nanotube buckypapers (SWCNT-bps) coated with a metal–organic framework ZIF-8 layer were used as supports for the preparation of Pebax® 3533 TFC membranes by both phase inversion and spin coating techniques. Upon proper characterization of the materials by X-ray diffraction, IR [...] Read more.
Single-walled carbon nanotube buckypapers (SWCNT-bps) coated with a metal–organic framework ZIF-8 layer were used as supports for the preparation of Pebax® 3533 TFC membranes by both phase inversion and spin coating techniques. Upon proper characterization of the materials by X-ray diffraction, IR spectroscopy, thermogravimetry and electron microscopy, the obtained membranes were tested in gas separation experiments with a 15:85 CO2/N2 mixture. These experiments proved that the ZIF-8 layer prevented from the penetration of the polymer selective film into the SWCNT-bp support, giving rise to a highly permeable selective membrane. The optimum membrane was achieved by the spin-coating method, with better permeation results than that prepared by the phase inversion method, obtaining a CO2 permeance of 566 GPU together with a CO2/N2 selectivity of 20.9. Full article
(This article belongs to the Special Issue Research Progress of Metal-Organic-Framework (MOF) Membranes)
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Review

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31 pages, 5141 KiB  
Review
Engineering Metal-Organic-Framework (MOF)-Based Membranes for Gas and Liquid Separation
by Yutian Duan, Lei Li, Zhiqiang Shen, Jian Cheng and Kewu He
Membranes 2023, 13(5), 480; https://doi.org/10.3390/membranes13050480 - 29 Apr 2023
Cited by 15 | Viewed by 7899
Abstract
Separation is one of the most energy-intensive processes in the chemical industry, and membrane-based separation technology contributes significantly to energy conservation and emission reduction. Additionally, metal-organic framework (MOF) materials have been widely investigated and have been found to have enormous potential in membrane [...] Read more.
Separation is one of the most energy-intensive processes in the chemical industry, and membrane-based separation technology contributes significantly to energy conservation and emission reduction. Additionally, metal-organic framework (MOF) materials have been widely investigated and have been found to have enormous potential in membrane separation due to their uniform pore size and high designability. Notably, pure MOF films and MOF mixed matrix membranes (MMMs) are the core of the “next generation” MOF materials. However, there are some tough issues with MOF-based membranes that affect separation performance. For pure MOF membranes, problems such as framework flexibility, defects, and grain orientation need to be addressed. Meanwhile, there still exist bottlenecks for MMMs such as MOF aggregation, plasticization and aging of the polymer matrix, poor interface compatibility, etc. Herein, corresponding methods are introduced to solve these problems, including inhibiting framework flexibility, regulating synthesis conditions, and enhancing the interaction between MOF and substrate. A series of high-quality MOF-based membranes have been obtained based on these techniques. Overall, these membranes revealed desired separation performance in both gas separation (e.g., CO2, H2, and olefin/paraffin) and liquid separation (e.g., water purification, organic solvent nanofiltration, and chiral separation). Full article
(This article belongs to the Special Issue Research Progress of Metal-Organic-Framework (MOF) Membranes)
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