PVC-based hybrid membranes containing metal-organic frameworks for Li+/Mg2+ separation

Zhang, Chengyi; Mu, Yingxin; Zhang, Wen; Zhao, Song; Wang, Yuxin

doi:10.1016/j.memsci.2019.117724

Cited by 103 publications

(75 citation statements)

References 60 publications

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“…Previous studies have demonstrated MOF‐based membranes with diverse subnanometer pore structures and ion selectivities for efficient ion separation applications. [ 91 ] Recently, Wang's group developed ultrafast selective transport of alkali metal ions in an ultrathin ZIF‐8 membrane fabricated by a nanoporous GO‐assisted interfacial growth method on AAO substrate ( Figure a). [ 92 ] This membrane can selectively transport Li + at a very fast rate.…”

Section: Applicationsmentioning

confidence: 99%

Construction of Metal‐Organic Frameworks (MOFs)–Based Membranes and Their Ion Transport Applications

Yang

Wang

et al. 2021

Small Science

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Biological ion channels with delicate ion transport functions exist widely in living organisms. Bioinspired solid‐state channels have emerged as promising platforms to mimic the working mechanism of natural channels. These channels help in understanding the mechanism of ion transport in biosystems and pave the way for applications in several interesting areas. Metal‐organic frameworks (MOFs), constructed by connecting metal ions and organic ligands, exhibit high porosity and unique pore structures. They also possess tunable pore sizes and are versatile in their compositions. And there are rich molecule/ion‐specific functional groups in the frameworks, which can intelligently modulate ion transport. Thus, MOFs are promising candidates that mimic biological ion channels. Herein, the recent progress in the design and construction of artificial solid‐state MOF‐based channels is focused on. The excellent ion transport properties of MOF‐based membranes are also summarized, including ionic selectivity, ionic rectification, and ionic gating. Following this, four emerging ion transport applications, namely, energy conversion, ion/molecule separation, biosensing, and water desalination, are highlighted. Finally, an outlook on future developments and challenges in this exciting research area is presented.

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Section: Applicationsmentioning

confidence: 99%

Construction of Metal‐Organic Frameworks (MOFs)–Based Membranes and Their Ion Transport Applications

Yang

Wang

et al. 2021

Small Science

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“…Very recently, six MOFs including ZIF-8, UiO-66, HSO 3 -UiO-66, HKUST-1, MOF-808, and SO 4 -MOF-808 were used to fabricate MMMs (MOFs@PVC) via the casting method (Figure 11a). [49] To evaluate the application potential of Li + /Mg 2+ separation performance, diffusion experiments of the HSO 3 -UiO-66@ PVC membrane were carried out, showing an average separation ratio of Li + /Mg 2+ more than 4 (Figure 11b). MOFs with tunable pores and functional groups distributed in the matrix can construct transport pathways for ions in membranes.…”

Section: Ion Separationmentioning

confidence: 99%

Section: Ion Separationmentioning

confidence: 99%

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Metal–Organic Framework‐Based Ion‐Selective Membranes

Hill

Wang

et al. 2021

Adv Materials Technologies

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(2 of 15)www.advmattechnol.de Figure 1. Design of artificial ion-selective membranes based on MOFs with versatile channel structures. a) MOFs with versatile channel structures (i.e., MIL-121 with 1D channels (Reproduced with permission. [38] Copyright 2020, Wiley-VCH), Al-TCPP with 2D interlayers (Reproduced with permission. [52] Copyright 2020, AAAS), and 3D MOFs ZIF-8, HKUST-1 and UiO-66-X with window-cavity channels (Reproduced with permission. [45] Copyright 2020, American Chemical Society.)) for the construction of artificial ion-selective membranes. b) Design of artificial ion-selective MOF-based membranes. The sub-1-nanometer MOF channels serve as ion conduction pathways for ion transport, and selective filters function as specific ion binding sites for ion sieving.

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“…If the interlayer spacing of the MXene@PSS composite membrane is large enough (@ hydrated diameters of metal ions), the sequence of ion permeation rate should be consistent with the order of the hydrated diameters, as shown above. [25] For the MXene@PSS composite membranes, the interlayer spacing is ca. 6 , as calculated from Figure 2 d, which is smaller than all of the hydrated metal ionic diameters.…”

mentioning

confidence: 99%

A Lamellar MXene (Ti₃C₂T_x)/PSS Composite Membrane for Fast and Selective Lithium‐Ion Separation

Zong

Ding

et al. 2021

Angewandte Chemie

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A two‐dimensional (2D) laminar membrane with Li+ selective transport channels is obtained by stacking MXene nanosheets with the introduction of poly(sodium 4‐styrene sulfonate) (PSS) with active sulfonate sites, which exhibits excellent Li+ selectivity from ionic mixture solutions of Na+, K+, and Mg2+. The Li+ permeation rate through the MXene@PSS composite membrane is as high as 0.08 mol m−2 h−1, while the Li+/Mg2+, Li+/Na+, and Li+/K+ selectivities are 28, 15.5, and 12.7, respectively. Combining the simulation and experimental results, we further confirm that the highly selective rapid transport of partially dehydrated Li+ within subnanochannels can be attributed to the precisely controlled interlayer spacing and the relatively weaker ion‐terminal (−SO3−) interaction. This study deepens the understanding of ion‐selective permeation in confined channels and provides a general membrane design concept.

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PVC-based hybrid membranes containing metal-organic frameworks for Li+/Mg2+ separation

Cited by 103 publications

References 60 publications

Construction of Metal‐Organic Frameworks (MOFs)–Based Membranes and Their Ion Transport Applications

Construction of Metal‐Organic Frameworks (MOFs)–Based Membranes and Their Ion Transport Applications

Metal–Organic Framework‐Based Ion‐Selective Membranes

A Lamellar MXene (Ti₃C₂T_x)/PSS Composite Membrane for Fast and Selective Lithium‐Ion Separation

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PVC-based hybrid membranes containing metal-organic frameworks for Li+/Mg2+ separation

Cited by 103 publications

References 60 publications

Construction of Metal‐Organic Frameworks (MOFs)–Based Membranes and Their Ion Transport Applications

Construction of Metal‐Organic Frameworks (MOFs)–Based Membranes and Their Ion Transport Applications

Metal–Organic Framework‐Based Ion‐Selective Membranes

A Lamellar MXene (Ti3C2Tx)/PSS Composite Membrane for Fast and Selective Lithium‐Ion Separation

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A Lamellar MXene (Ti₃C₂T_x)/PSS Composite Membrane for Fast and Selective Lithium‐Ion Separation