Mixed-dimensional membranes: chemistry and structure-property relationships

Tremendous progress in two-dimensional (2D) nanomaterial chemistry affords abundant opportunities for the sustainable development of membranes and membrane processes. In this review, we propose the concept of mixed dimensional membranes (MDMs), which are fabricated through the integration of 2D mate...

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Published inChemical Society reviews Vol. 5; no. 21; pp. 11747 - 11765
Main Authors Liu, Yanan, Coppens, Marc-Olivier, Jiang, Zhongyi
Format Journal Article
LanguageEnglish
Published London Royal Society of Chemistry 01.11.2021
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Summary:Tremendous progress in two-dimensional (2D) nanomaterial chemistry affords abundant opportunities for the sustainable development of membranes and membrane processes. In this review, we propose the concept of mixed dimensional membranes (MDMs), which are fabricated through the integration of 2D materials with nanomaterials of different dimensionality and chemistry. Complementing mixed matrix membranes or hybrid membranes, MDMs stimulate different conceptual thinking about designing advanced membranes from the angle of the dimensions of the building blocks as well as the final structures, including the nanochannels and the bulk structures. In this review, we survey MDMs (denoted n D/2D, where n is 0, 1 or 3) in terms of the dimensions of membrane-forming nanomaterials, as well as their fabrication methods. Subsequently, we highlight three kinds of nanochannels, which are 1D nanochannels within 1D/2D membranes, 2D nanochannels within 0D/2D membranes, and 3D nanochannels within 3D/2D membranes. Strategies to tune the physical and chemical microenvironments of the nanochannels as well as the bulk structures based on the size, type, structure and chemical character of nanomaterials are discussed. Some representative applications of MDMs are illustrated for gas molecular separations, liquid molecular separations, ionic separations and oil/water separation. Finally, current challenges and a future perspective on MDMs are presented. This review highlights the design and construction of mixed-dimensional membranes (MDMs) and their applications in molecular separations, ionic separations and oil/water separations.
Bibliography:Marc-Olivier Coppens is Ramsay Memorial Professor in Chemical Engineering at UCL, since 2012, after professorships at Rensselaer and TUDelft. He is also Vice-Dean for Engineering (Interdisciplinarity, Innovation). He directs the Centre for Nature-Inspired Engineering, which was granted EPSRC "Frontier Engineering" (2013) and "Progression" (2019) Awards. He is most recognised for pioneering nature-inspired chemical engineering (NICE): learning from fundamental mechanisms underpinning desirable traits in nature to develop innovative solutions to engineering challenges. He is Fellow of AIChE, IChemE, Corresponding Member of the Saxon Academy of Sciences (Germany), Qiushi Professor at Zhejiang University, and has delivered >50 named lectures, plenaries and keynotes.
Zhongyi Jiang is a Professor of School of Chemical Engineering and Technology, Tianjin University, Changjiang Scholars, the winner of National Science Fund for Distinguished Young Scholars. He received his PhD from Tianjin University in 1994. He served as a visiting scholar of University of Minnesota in 1996-1998 and California Institute of technology in 2009. His research interest includes membranes and membrane processes and enzymatic catalysis. Till now, he has published more than 600 SCI papers with total citations over 25 000 times (H index = 85). He is an associate editor for Advanced Membranes, a member of the editorial board for Journal of Membrane Science, Research, Green Chemical Engineering, etc.
Yanan Liu is currently working as a postdoc with Prof. Marc-Olivier Coppens in the Department of Chemical Engineering at University College London. She received her PhD degree in Chemical Technology from Tianjin University in 2019 under the tutelage of Prof. Zhongyi Jiang. Her research interests include nanomaterials, membrane technology for water treatment and nature-inspired methodology for membrane technology.
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ISSN:0306-0012
1460-4744
1460-4744
DOI:10.1039/d1cs00737h