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Membranes
Special Issues
High-Performance Composite Membrane for Gas Separation and Capture
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High-Performance Composite Membrane for Gas Separation and Capture

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

Deadline for manuscript submissions: 1 October 2025 | Viewed by 255

Special Issue Editors

Dr. Wenping Li

E-Mail Website
Guest Editor
Biomass & Biorefinery Research Lab, Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada
Interests: catalytic membrane reactor development; membrane materials study for gas separation
Dr. Pandeng Li

E-Mail Website
Guest Editor
Biomass & Biorefinery Research Lab, Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada
Interests: organic membrane fabrication for photovoltaic modules

Special Issue Information

Dear Colleagues,

We are pleased to invite you to contribute to the Special Issue "High-Performance Composite Membrane for Gas Separation and Capture" and share your valuable insights on related emerging technologies.

This Special Issue aims to explore the latest innovations and advancements in the design, development, and application of composite membranes. As global energy demands and environmental challenges increase, the need for efficient gas separation technologies has become critical, particularly in sectors like carbon capture, hydrogen production, natural gas purification, and industrial gas processing. Composite membranes offer unique advantages due to their tailored structures, enabling enhanced selectivity, permeability, and stability, which are essential for meeting the rigorous requirements of gas separation processes. This issue seeks to highlight cutting-edge research that addresses both the theoretical understanding and practical applications of composite membranes. By gathering diverse perspectives from leading experts, this Special Issue aims to provide a comprehensive overview of current trends and future directions in the field, contributing to the advancement of sustainable and energy-efficient gas separation technologies.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following: novel composite membrane material, composite membrane fabrication methods, and their performance in gas separation processes such as carbon capture, hydrogen separation, industrial gas processing, and sustainable gas technologies.

We look forward to receiving your contributions.

Dr. Wenping Li
Dr. Pandeng Li
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. 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

  • composite membranes
  • gas separation
  • carbon capture
  • hydrogen purification
  • CO2 separation
  • industrial gas processing
  • sustainable gas technologies

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

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Research

18 pages, 5149 KiB  
Article
Construction of Transport Channels by HNTs@ZIF-67 Composites in a Mixed-Matrix Membrane for He/CH4 Separation
by Jiale Zhang, Huixin Dong, Fei Guo, Huijun Yi, Xiaobin Jiang, Gaohong He and Wu Xiao
Membranes 2025, 15(7), 197; https://doi.org/10.3390/membranes15070197 - 30 Jun 2025
Abstract
In this work, HNTs@ZIF-67 composites were synthesized using the in situ growth method and incorporated into 6FDA-TFMB to prepare mixed-matrix membranes (MMMs). Scanning electron microscope (SEM) and transmission electron microscope (TEM) proved that the HNTs@ZIF-67 composite not only retained the hollow structure of [...] Read more.
In this work, HNTs@ZIF-67 composites were synthesized using the in situ growth method and incorporated into 6FDA-TFMB to prepare mixed-matrix membranes (MMMs). Scanning electron microscope (SEM) and transmission electron microscope (TEM) proved that the HNTs@ZIF-67 composite not only retained the hollow structure of HNTs, but also formed a continuous ZIF-67 transport layer on the surface of HNTs. The results of gas permeability experiments showed that with the increase in HNTs@ZIF-67 incorporation, the He permeability and He/CH4 selectivity of MMMs showed a trend of increasing first and then decreasing. When the loading is 5 wt%, the He permeability and He/CH4 selectivity of MMMs reach 116 Barrer and 305, which are 22.11% and 79.41% higher than the pure 6FDA-TFMB membrane. The results of density functional theory (DFT) and Monte Carlo (MC) calculations reveal that He diffuses more easily inside ZIF-67, HNTs and 6FDA-TFMB than CH4, and ZIF-67 shows larger adsorption energy with He than HNTs and 6FDA-TFMB, indicating that He is easily adsorbed by ZIF-67 in MMMs. Based on experimental and molecular simulation results, the mechanism of HNTs@ZIF-67 improving the He/CH4 separation performance of MMMs was summarized. With the advantage of a smaller molecular kinetic diameter, He can diffuse through ZIF-67 on the tube orifice of HNTs@ZIF-67 and enter the HNTs’ hollow tube for rapid transmission. At the same time, He can also be rapidly transferred in the continuous ZIF-67 transport channel layer, which improves the He permeability and the He/CH4 selectivity of MMMs. Full article
(This article belongs to the Special Issue High-Performance Composite Membrane for Gas Separation and Capture)
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