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Processes
Special Issues
Applications of Metal–Organic Frameworks for Gas Adsorption and Permeation
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Applications of Metal–Organic Frameworks for Gas Adsorption and Permeation

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: closed (15 August 2021) | Viewed by 6815

Special Issue Editors

Dr. Isabel A.A.C. Esteves

E-Mail Website
Guest Editor
LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
Interests: gas adsorption processes; adsorbent materials; metal–organic frameworks; ionic liquids; gas separation; biomass to energy; biogas upgrading; carbon capture
Dr. Luisa A. Neves

E-Mail Website
Guest Editor
LAQV/REQUIMTE, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
Interests: mixed matrix membranes; ionic liquids; metal–organic frameworks; gas separation; biopolymeric structures; biomedical applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue on “Applications of Metal–Organic Frameworks for Gas Adsorption and Permeation” is aimed at promoting research and progress in the field of metal–organic frameworks (MOFs) applied to gas separation, specifically in adsorption and membrane processes applications.

MOFs have gained their share on the advance of porous materials and their applications. The highly varying structural properties and chemical functionalities of MOFs, which can be tailored during their syntheses, have led to a panoply of derived materials. This opens prospects and challenges in the advancement of gas adsorption and task-specific gas membrane permeation applications, namely for carbon dioxide (CO2) and biogas-related separation technologies. Specifically, MOFs and their composite materials present unusual high CO2 selectivities which lead to high expectations in potential future developments of interest in separations, catalysis, and drug delivery.

This Special Issue will be focusing on:

  1. Fundamentals on design strategies, synthesis, characterization, and modeling;
  2. MOF-based adsorbents;
  3. MOF-based membranes;
  4. MOFs supporting ionic liquids (ILs@MOFs);
  5. Applications on gas separation.

An up-to-date picture of recent advances and breakthroughs in these areas, both fundamental, including modeling and experiments, and applied in the relevant technical fields, are most welcome either as original research papers, communication or as reviews.

Dr. Isabel A.A.C. Esteves
Dr. Luisa A. Neves
Guest Editors

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. Processes 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 2400 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
  • adsorption
  • membrane permeation
  • gas separation

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Published Papers (2 papers)

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15 pages, 4315 KiB  
Article
Unveiling the Temperature Influence on the Sorptive Behaviour of ZIF-8 Composite Materials Impregnated with [CnMIM][B(CN)4] Ionic Liquids
by Tiago J. Ferreira, Laura M. Esteves, José M. S. S. Esperança and Isabel A. A. C. Esteves
Processes 2022, 10(2), 247; https://doi.org/10.3390/pr10020247 - 27 Jan 2022
Cited by 5 | Viewed by 2513
Abstract
Composite sorbent materials (IL@MOF) with a metal-organic framework (MOF) ZIF-8 and [B(CN)4]−-based ionic liquids (ILs) were produced for the first time. Characterization results indicate the successful IL impregnation and conservation of the ZIF-8 crystalline structure and morphology. The data [...] Read more.
Composite sorbent materials (IL@MOF) with a metal-organic framework (MOF) ZIF-8 and [B(CN)4]−-based ionic liquids (ILs) were produced for the first time. Characterization results indicate the successful IL impregnation and conservation of the ZIF-8 crystalline structure and morphology. The data collected from the nitrogen (N2) physisorption at 77 K suggest that these IL@ZIF-8 materials are nonporous as their textural properties, such as BET specific surface area and total pore volume, are negligible. However, CO2, CH4, and N2 adsorption/desorption measurements in the IL@ZIF-8 composites at 303 and 273 K contradict the N2 data at 77 K, given that the obtained isotherms are Type I, typical of (micro)porous materials. Their gas adsorption capacity and ultramicroporous volume are in the same order of magnitude as the pristine microporous ZIF-8. The case study [C6MIM][B(CN)4] IL revealed a high affinity to both CO2 and CH4. This compromised the selectivity performance of its respective composite when compared with pristine ZIF-8. This work highlights the importance of accurate experimental gas adsorption/desorption equilibrium measurements to characterize the adsorption uptake and the porous nature of adsorbent materials. Full article
(This article belongs to the Special Issue Applications of Metal–Organic Frameworks for Gas Adsorption and Permeation)
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14 pages, 2653 KiB  
Article
Choline-Based Ionic Liquids-Incorporated IRMOF-1 for H2S/CH4 Capture: Insight from Molecular Dynamics Simulation
by Mohamad Adil Iman Ishak, Mohd Faisal Taha, Mohd Dzul Hakim Wirzal, Muhammad Najib Nordin, Muslim Abdurrahman and Khairulazhar Jumbri
Processes 2020, 8(4), 412; https://doi.org/10.3390/pr8040412 - 1 Apr 2020
Cited by 11 | Viewed by 3238
Abstract
The removal of H2S and CH4 from natural gas is crucial as H2S causes environmental contamination, corrodes the gas stream pipelines, and decreases the feedstock for industrial productions. Many scientific researches have shown that the metal-organic framework (MOF)/ionic [...] Read more.
The removal of H2S and CH4 from natural gas is crucial as H2S causes environmental contamination, corrodes the gas stream pipelines, and decreases the feedstock for industrial productions. Many scientific researches have shown that the metal-organic framework (MOF)/ionic liquids (ILs) have great potential as alternative adsorbents to capture H2S. In this work, molecular dynamics (MD) simulation was carried out to determine the stability of ILs/IRMOF-1 as well as to study the solubility of H2S and CH4 gases in this ILs/IRMOF-1 hybrid material. Three choline-based ILs were incorporated into IRMOF-1 with different ratios of 0.4, 0.8, and 1.2% w/w, respectively, in which the most stable choline-based ILs/IRMOF-1 composite was analysed for H2S/CH4 solubility selectivity. Among the three choline-based ILs/IRMOF-1, [Chl] [SCN]/IRMOF-1 shows the most stable incorporation. However, the increment of ILs loaded in the IRMOF-1 significantly reduced the stability of the hybrid due to the crowding effect. Solvation free energy was then computed to determine the solubility of H2S and CH4 in the [Chl] [SCN]/IRMOF-1. H2S showed higher solubility compared to CH4, where its solubility declined with the increase of choline-based IL loading. Full article
(This article belongs to the Special Issue Applications of Metal–Organic Frameworks for Gas Adsorption and Permeation)
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