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Membranes
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Graphene Oxide Membrane for Sustainable Energy and Environmental Applications
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Graphene Oxide Membrane for Sustainable Energy and Environmental Applications

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

Deadline for manuscript submissions: closed (31 January 2025) | Viewed by 4603

Special Issue Editors

Dr. Mengchen Zhang

E-Mail Website
Guest Editor
School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020, China
Interests: Graphene oxide membrane
Dr. Chao Xing

E-Mail Website
Guest Editor
UQ Dow Centre for Sustainable Engineering Innovation, School of Chemical Engineering, University of Queensland, Brisbane, QLD 4072, Australia
Interests: graphene oxide membrane
Prof. Dr. Gongping Liu

E-Mail Website
Guest Editor
College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
Interests: mxed-matrix membranes; 2D-materials membranes; gas separation; pervaporation

Special Issue Information

Dear Colleagues,

Membrane separation technologies have revolutionized various industrial processes due to their low cost, high efficiency, and environmental sustainability. In recent years, the emergence of two-dimensional graphene oxide material has brought about new possibilities in membrane design, offering unique atomic thickness and tuneable physical and chemical properties as an ideal membrane building block. High-performance graphene oxide membranes featuring well-defined nano/subnanometer-scale channels for controllable mass transport (for instance, gases, liquids, and ions) display tremendous potential for precise and selective molecular/ionic separation, and have been utilized in a broad spectrum of important applications related to the resources, energy, and environment fields.

The purpose of this Special Issue, “Graphene Oxide Membrane for Sustainable Energy and Environmental Applications”, is to collect recent advancements on developments and applications of innovative graphene oxide membranes. Original research articles, reviews and communications on membrane fabrications, membrane characterizations, channel constructions/regulations, transport and separation mechanisms, molecular dynamics (MD) simulations/calculations, membrane stability and scaling up technologies of graphene oxide membranes, and their utilisation and integration within sustainable energy and clean industry applications in fields including, but not limited to, gas separation, liquid separation, water purification, desalination, ions extraction and energy storage and conversation are welcome. 

Dr. Mengchen Zhang
Dr. Chao Xing
Prof. Dr. Gongping Liu
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

  • graphene oxide
  • graphene oxide membranes
  • nano/subnanometer-scale channels
  • molecular/ionic separation
  • membrane performance
  • membrane applications

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Published Papers (2 papers)

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20 pages, 13636 KiB  
Article
Cross-Linked Self-Standing Graphene Oxide Membranes: A Pathway to Scalable Applications in Separation Technologies
by Juan A. G. Carrio, Vssl Prasad Talluri, Swamy T. Toolahalli, Sergio G. Echeverrigaray and Antonio H. Castro Neto
Membranes 2025, 15(1), 31; https://doi.org/10.3390/membranes15010031 - 15 Jan 2025
Viewed by 1415
Abstract
The large-scale implementation of 2D material-based membranes is hindered by mechanical stability and mass transport control challenges. This work describes the fabrication, characterisation, and testing of self-standing graphene oxide (GO) membranes cross-linked with oxides such as Fe2O3, Al2 [...] Read more.
The large-scale implementation of 2D material-based membranes is hindered by mechanical stability and mass transport control challenges. This work describes the fabrication, characterisation, and testing of self-standing graphene oxide (GO) membranes cross-linked with oxides such as Fe2O3, Al2O3, CaSO4, Nb2O5, and a carbide, SiC. These cross-linking agents enhance the mechanical stability of the membranes and modulate their mass transport properties. The membranes were prepared by casting aqueous suspensions of GO and SiC or oxide powders onto substrates, followed by drying and detachment to yield self-standing films. This method enabled precise control over membrane thickness and the formation of laminated microstructures with interlayer spacings ranging from 0.8 to 1.2 nm. The resulting self-standing membranes, with areas between 0.002 m2 and 0.090 m2 and thicknesses from 0.6 μm to 20 μm, exhibit excellent flexibility and retain their chemical and physical integrity during prolonged testing in direct contact with ethanol/water and methanol/water mixtures in both liquid and vapour phases, with stability demonstrated over 24 h and up to three months. Gas permeation and chemical characterisation tests evidence their suitability for gas separation applications. The interactions promoted by the oxides and carbide with the functional groups of GO confer great stability and unique mass transport properties—the Nb2O5 cross-linked membranes present distinct performance characteristics—creating the potential for scalable advancements in cross-linked 2D material membranes for separation technologies. Full article
(This article belongs to the Special Issue Graphene Oxide Membrane for Sustainable Energy and Environmental Applications)
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14 pages, 4224 KiB  
Article
Facilitating Water Permeation in Graphene Oxide Membranes via Incorporating Sulfonato Calix[n]arenes
by Yufan Ji, Shurui Dong, Yiping Huang, Changhai Yue, Hao Zhu, Dan Wu and Jing Zhao
Membranes 2024, 14(2), 32; https://doi.org/10.3390/membranes14020032 - 24 Jan 2024
Cited by 3 | Viewed by 2270
Abstract
Graphene oxide (GO) with its atomic thickness and abundant functional groups holds great potential in molecular-scale membrane separation. However, constructing high-speed and highly selective water transport channels within GO membranes remains a key challenge. Herein, sulfonato calix[n]arenes (SCn) molecules with a cavity structure, [...] Read more.
Graphene oxide (GO) with its atomic thickness and abundant functional groups holds great potential in molecular-scale membrane separation. However, constructing high-speed and highly selective water transport channels within GO membranes remains a key challenge. Herein, sulfonato calix[n]arenes (SCn) molecules with a cavity structure, hydrophilic entrance, and hydrophobic wall were incorporated into GO interlayer channels through a layer-by-layer assembly approach to facilitate water permeation in a water/ethanol separation process. The hydrophilic entrance enables preferential access of water molecules to the cavity over ethanol molecules, while the high hydrophobicity of the cavity wall confers low resistance for water diffusion. After incorporating SCn molecules, the membrane shows a remarkable increase in the water/ethanol separation factor from 732 to 1260, while the permeate flux also increases by about 50%. In addition, the strong electrostatic interactions between the building blocks endow the membrane with excellent swelling resistance even under a high water content. This work provides an effective strategy of constructing high-efficiency water transport channels in membrane. Full article
(This article belongs to the Special Issue Graphene Oxide Membrane for Sustainable Energy and Environmental Applications)
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