Special Issue "MOF-Based Membranes"

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Crystal Engineering".

Deadline for manuscript submissions: closed (31 August 2018)

Special Issue Editors

Guest Editor
Prof. Jinsoo Kim

Department of Chemical Engineering, Kyung Hee University, Gyeonggi-do, Korea
Website | E-Mail
Interests: MOF membranes; MOF crystals; ceramic membranes; gas separation
Guest Editor
Prof. Dr. Hae-Kwon Jeong

Artie McFerrin Department of Chemical Engineering, Department ofMaterials Science and Engineering, Texas A&M University, CollegeStation, TX, United States
Website | E-Mail
Interests: gas separation; molecular sieve membranes; metal-organic frameworks; polycrystalline films; adsorbents

Special Issue Information

Dear Colleagues,

Metal-organic frameworks (MOFs), which are constructed from metal ions (or clusters) and organic linkers, are organic-inorganic hybrid materials with well-defined pore structures. MOFs have exceptionally high porosity, uniform but tunable pore sizes and structural diversity and rich functionalities. As a new class of porous solid materials, MOFs have tremendous attention for a variety of industrial applications including separation membranes. After initial steps of developing different MOF structures into membranes, recent studies on MOF-based membranes focus on the improvement of membrane performance and the issues facing in practical large scale applications.

This Special Issue is dedicated to provide a comprehensive coverage on the recent progresses in “MOF-based Membranes” and their applications. It offers a perfect site to report the synthesis and characterization of MOF-based membranes including polycrystalline MOF membranes and MOF containing mixed matrix membranes, the related membrane fabrication methods, and their applications to gas separation, water separation, etc. Both original papers and critical reviews are welcome.

Prof. Jinsoo Kim
Prof. Hae-Kwon Jeong
Guest Editors

Manuscript Submission Information

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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. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • MOF membranes
  • Mixed matrix membranes
  • Crystal growth
  • Gas separation

Published Papers (2 papers)

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Research

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Open AccessArticle Propylene-Selective Thin Zeolitic Imidazolate Framework Membranes on Ceramic Tubes by Microwave Seeding and Solvothermal Secondary Growth
Crystals 2018, 8(10), 373; https://doi.org/10.3390/cryst8100373
Received: 26 August 2018 / Revised: 10 September 2018 / Accepted: 17 September 2018 / Published: 21 September 2018
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Abstract
Zeolitic imidazolate framework (ZIF-8) membranes have attracted tremendous interest for their high-resolution kinetic separation of propylene/propane mixtures. Current polycrystalline ZIF-8 membranes are supported mostly on planar ceramic substrates (e.g., alumina disks) because of their high thermal, chemical, and mechanical stabilities and facile manufacturing
[...] Read more.
Zeolitic imidazolate framework (ZIF-8) membranes have attracted tremendous interest for their high-resolution kinetic separation of propylene/propane mixtures. Current polycrystalline ZIF-8 membranes are supported mostly on planar ceramic substrates (e.g., alumina disks) because of their high thermal, chemical, and mechanical stabilities and facile manufacturing in the labs. Planar supports are, however, not scalable for practical separation applications owing to their low packing density (typically 30–500 m2/m3). On the other hand, ceramic tubes provide order-of-magnitude higher packing densities than planar supports (i.e., much higher membrane areas per module). Here, we report polycrystalline ZIF-8 membranes with thicknesses of ~1.2 μm grown on the bore side of commercially-available ceramic tubes using the microwave seeding and secondary growth technique. The tubular ZIF-8 membranes showed excellent propylene/propane separation factors of ~80, exceeding all currently-reported ZIF-8 membranes on ceramic tubes. It was found that the secondary growth time was critical to enhance the propylene/propane separation factor of the membranes. Membranes were also grown on the shell side of tubular supports, showing the versatility of our technique. Full article
(This article belongs to the Special Issue MOF-Based Membranes)
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Review

Jump to: Research

Open AccessReview Luminescent Metal–Organic Framework Thin Films: From Preparation to Biomedical Sensing Applications
Crystals 2018, 8(9), 338; https://doi.org/10.3390/cryst8090338
Received: 4 August 2018 / Revised: 15 August 2018 / Accepted: 17 August 2018 / Published: 23 August 2018
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Abstract
Metal-organic framework (MOF) thin films are receiving increasing attention in a number of different application fields, such as optoelectronics, gas separation, catalysis electronic devices, and biomedicine. In particular, their tunable composition and structure, accessible metal sites and potential for post-synthetic modification for molecular
[...] Read more.
Metal-organic framework (MOF) thin films are receiving increasing attention in a number of different application fields, such as optoelectronics, gas separation, catalysis electronic devices, and biomedicine. In particular, their tunable composition and structure, accessible metal sites and potential for post-synthetic modification for molecular recognition make MOF thin films promising candidates for biosensing applications. Compared with solution-based powdery probes, film-based probes have distinct advantages of good stability and portability, tunable shape and size, real-time detection, non-invasion, extensive suitability in gas/vapor sensing, and recycling. In this review, we summarize the recent advances in luminescent MOF thin films, including the fabrication methods and origins of luminescence. Specifically, luminescent MOF thin films as biosensors for temperature, ions, gases and biomolecules are highlighted. Full article
(This article belongs to the Special Issue MOF-Based Membranes)
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