Temperature-induced oriented growth of large area, few-layer 2D metal–organic framework nanosheets

Jian, Meipeng; Liu, Huiyuan; Williams, Tim; Ma, Jisheng; Wang, Huanting; Zhang, Xiwang

doi:10.1039/c7cc06988j

Cited by 55 publications

(35 citation statements)

References 37 publications

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“…Bulk-type Al-MOF was prepared following a modified method in our previous study (28). The glass vial was then capped, and the mixture was stirred on an orbital vortex shaker (Labco) for 1 min.…”

Section: Synthesis Of Al-mof Bulksmentioning

confidence: 99%

Ultrathin water-stable metal-organic framework membranes for ion separation

et al. 2020

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Owing to the rich porosity and uniform pore size, metal-organic frameworks (MOFs) offer substantial advantages over other materials for the precise and fast membrane separation. However, achieving ultrathin water-stable MOF membranes remains a great challenge. Here, we first report the successful exfoliation of two-dimensional (2D) monolayer aluminum tetra-(4-carboxyphenyl) porphyrin framework (termed Al-MOF) nanosheets. Ultrathin water-stable Al-MOF membranes are assembled by using the exfoliated nanosheets as building blocks. While achieving a water flux of up to 2.2 mol m−2 hour−1 bar−1, the obtained 2D Al-MOF laminar membranes exhibit rejection rates of nearly 100% on investigated inorganic ions. The simulation results confirm that intrinsic nanopores of the Al-MOF nanosheets domain the ion/water separation, and the vertically aligned aperture channels are the main transport pathways for water molecules.

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Section: Synthesis Of Al-mof Bulksmentioning

confidence: 99%

Ultrathin water-stable metal-organic framework membranes for ion separation

et al. 2020

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“…Sci. This strategy has been also used for the preparation of MOF nanosheets [50,[165][166][167] Zhang and co-workers synthesized a series of tetrakis(4-carboxyphenyl)porphyrin (TCPP) based ultrathin 2D MOFs through a surfactant-assisted method, such as Zn-TCPP, Cu-TCPP, Cd-TCPP, Co-TCPP(Fe), Cu-TCPP(Fe), Zn-TCPP(Fe), and PPF-3 nanosheets. The key of this method is to inhibit the growth of crystal in a certain direction.…”

Section: Bulk Solution Preparationmentioning

confidence: 99%

“…It is well known that surfactant is able to selectively attach to a certain crystallographic plane, which decreases surface energy and promotes anisotropic growth of crystal. This strategy has been also used for the preparation of MOF nanosheets Zhang and co‐workers synthesized a series of tetrakis(4‐carboxyphenyl)porphyrin (TCPP) based ultrathin 2D MOFs through a surfactant‐assisted method, such as Zn‐TCPP, Cu‐TCPP, Cd‐TCPP, Co‐TCPP(Fe), Cu‐TCPP(Fe), Zn‐TCPP(Fe), and PPF‐3 nanosheets . As illustrated in Figure a, bulk Zn‐TCPP crystals with layered structure were formed without addition of surfactants in the synthetic process .…”

Section: Synthetic Strategies For Ld Mof‐based Materialsmentioning

confidence: 99%

Structural Engineering of Low‐Dimensional Metal–Organic Frameworks: Synthesis, Properties, and Applications

et al. 2019

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Low‐dimensional metal–organic frameworks (LD MOFs) have attracted increasing attention in recent years, which successfully combine the unique properties of MOFs, e.g., large surface area, tailorable structure, and uniform cavity, with the distinctive physical and chemical properties of LD nanomaterials, e.g., high aspect ratio, abundant accessible active sites, and flexibility. Significant progress has been made in the morphological and structural regulation of LD MOFs in recent years. It is still of great significance to further explore the synthetic principles and dimensional‐dependent properties of LD MOFs. In this review, recent progress in the synthesis of LD MOF‐based materials and their applications are summarized, with an emphasis on the distinctive advantages of LD MOFs over their bulk counterparties. First, the unique physical and chemical properties of LD MOF‐based materials are briefly introduced. Synthetic strategies of various LD MOFs, including 1D MOFs, 2D MOFs, and LD MOF‐based composites, as well as their derivatives, are then summarized. Furthermore, the potential applications of LD MOF‐based materials in catalysis, energy storage, gas adsorption and separation, and sensing are introduced. Finally, challenges and opportunities of this fascinating research field are proposed.

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“…By the bottom–up method, 2D MOF nanosheets are directly synthesized from metal ions and ligands through selectively controlling the growth direction of the MOF crystal by adding modulators or using the liquid/liquid or liquid/air interface . The nanosheets obtained are usually in size uniformity but thicker than the nanosheets obtained by top‐down methods.…”

Section: Synthesis and Characterization Methodologiesmentioning

confidence: 99%

Two‐Dimensional Metal‐Organic Framework Nanosheets: A Rapidly Growing Class of Versatile Nanomaterials for Gas Separation, MALDI‐TOF Matrix and Biomimetic Applications

Yang

2018

Chemistry A European J

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Two-dimensional (2D) metal-organic framework (MOF) nanosheets, as an emerging type of 2D materials, attract numerous attention due to their unique properties. First, the ultrathin thickness and nanoscale of the materials results in homogeneous dispersion in aqueous solution, giving the materials more opportunities to be utilized in solution chemistry, especially beneficial to the biomimetic catalysis and bio-related analytical applications. Second, the large surface area and accessible active sites of the MOF nanosheets are favorable to the binding between materials and the substrate, leading to their superior performance in catalysis, sensing and enzyme inhibition. Third, the suitable sizes of nanopores on the 2D MOF nanosheets give them the abilities to act as membranes for highly selective and energy-saving gas separation. This minireview covers the synthesis, characterization as well as bio-related and separation applications of 2D MOF nanosheets.

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Temperature-induced oriented growth of large area, few-layer 2D metal–organic framework nanosheets

Cited by 55 publications

References 37 publications

Ultrathin water-stable metal-organic framework membranes for ion separation

Ultrathin water-stable metal-organic framework membranes for ion separation

Structural Engineering of Low‐Dimensional Metal–Organic Frameworks: Synthesis, Properties, and Applications

Two‐Dimensional Metal‐Organic Framework Nanosheets: A Rapidly Growing Class of Versatile Nanomaterials for Gas Separation, MALDI‐TOF Matrix and Biomimetic Applications

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