Metal–organic framework membranes fabricated via reactive seeding

Hu, Yaoxin; Dong, Xueliang; Nan, Jiangpu; Jin, Wanqin; Ren, Xiao‐Ming; Xu, Nanping; Lee, Young Moo

doi:10.1039/c0cc03927f

Cited by 376 publications

(250 citation statements)

References 28 publications

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“…[4] Owing to similar crystallization mechanisms between MOFs and zeolites,t he main strategies for synthesizing zeolite membranes have been widely adopted to fabricate MOF membranes. [5] TheTsapatsis and Li groups recently made breakthroughs in the preparation of ultrathin zeolite membranes by secondary growth of two-dimensional (2D) seeds consisting of their exfoliated nanosheets or slice-shaped zeolites.…”

Section: Metal-organic Framework (Mof) Films Have Been Studiedmentioning

confidence: 99%

Zeolitic Imidazolate Framework/Graphene Oxide Hybrid Nanosheets as Seeds for the Growth of Ultrathin Molecular Sieving Membranes

et al. 2015

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A defect-free zeolitic imidazolate framework-8 (ZIF-8)/graphene oxide (GO) membrane with a thickness of 100 nm was prepared using two-dimensional (2D) ZIF-8/GO hybrid nanosheets as seeds. Hybrid nanosheets with a suitable amount of ZIF-8 nanocrystals were essential for producing a uniform seeding layer that facilitates fast crystal intergrowth during membrane formation. Moreover, the seeding layer acts as a barrier between two different synthesis solutions, and self-limits crystal growth and effectively eliminates defects during the contra-diffusion process. The resulting ultrathin membranes show excellent molecular sieving gas separation properties, such as with a high CO2 /N2 selectivity of 7.0. This 2D nano-hybrid seeding strategy can be readily extended to the fabrication of other defect-free and ultrathin MOF or zeolite molecular sieving membranes for a wide range of separation applications.

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Section: Metal-organic Framework (Mof) Films Have Been Studiedmentioning

confidence: 99%

Zeolitic Imidazolate Framework/Graphene Oxide Hybrid Nanosheets as Seeds for the Growth of Ultrathin Molecular Sieving Membranes

et al. 2015

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“…Partial self-conversion of inorganic support to metal-organic frameworks (MOFs) membrane can effectively promote the heterogeneous nucleation and enhance the binding strength between MOF grain and support, improving the reproducibility of as-synthesized membranes (Dong et al, 2012;Guo et al, 2009;Hu et al, 2011;Khaletskaya et al, 2014;Liu et al, 2014b;Marti et al, 2013;Zhang et al, 2013;Zhang et al, 2014). For example, Jin et al (Hu et al, 2011) prepared continuous MIL-53(Al) membranes on α-alumina supports, in which the α-alumina support acted as the inorganic source reacting with the organic ligand to grow a seeding layer.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Jin et al (Hu et al, 2011) prepared continuous MIL-53(Al) membranes on α-alumina supports, in which the α-alumina support acted as the inorganic source reacting with the organic ligand to grow a seeding layer.…”

Section: Introductionmentioning

confidence: 99%

ZIF-8 membranes with improved reproducibility fabricated from sputter-coated ZnO/alumina supports

Pan

Wang

et al. 2016

Chemical Engineering Science

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Zeolitic imidazolate framework-8 (ZIF-8) membrane has shown great potential for propylene/propane separation based on molecular sieving mechanism. Although diverse synthesis strategies were applied to prepare ZIF-8 membranes, it is still a challenge for reproducible fabrication of high-quality membranes. In this study, high-quality ZIF-8 membranes were prepared through hydrothermal synthesis under the partial self-conversion of sputter-coated ZnO layer on porous α-alumina supports.The reproducibility was significantly improved, compared with that from sol-gel coated ZnO layer, due to the highly controllable sputtering deposition of ZnO precursor. The relationship between the quality of as-synthesized membrane and amount of deposited ZnO was also determined. The effect of pressure drop in C 3 H 6 /C 3 H 8 separation on separating performance was also examined.

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“…Different Al-MOFs have been obtained as thin layers [139,142,143] and as membranes [144][145][146][147][148][149][150]. Especially the mesostructuring of such membranes has been demonstrated for Al-based MOFs.…”

Section: Recent Developments In Synthesismentioning

confidence: 99%

Synthesis, Structure, and Selected Properties of Aluminum-, Gallium-, and Indium-Based Metal-Organic Frameworks

Schilling

Reinsch

Stock

2016

The Chemistry of Metal-Organic Frameworks: Synthesis, Characterization, and Applications

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Metal–organic framework membranes fabricated via reactive seeding

Abstract: A facile reactive seeding (RS) method was developed for the preparation of continuous MOF membranes on alumina porous supports, in which the porous support acted as the inorganic source reacting with the organic precursor to grow a seeding layer.

Cited by 376 publications

References 28 publications

Zeolitic Imidazolate Framework/Graphene Oxide Hybrid Nanosheets as Seeds for the Growth of Ultrathin Molecular Sieving Membranes

Zeolitic Imidazolate Framework/Graphene Oxide Hybrid Nanosheets as Seeds for the Growth of Ultrathin Molecular Sieving Membranes

ZIF-8 membranes with improved reproducibility fabricated from sputter-coated ZnO/alumina supports

Synthesis, Structure, and Selected Properties of Aluminum-, Gallium-, and Indium-Based Metal-Organic Frameworks

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