Vapor phase synthesis of metal–organic frameworks on a nanofibrous aerogel creates enhanced functionality

Rahmanian, Vahid; Ahmad Ebrahim, Muhammed Ziauddin; Razavi, Seyedamin; Abdelmigeed, Mai; Barbieri, Eduardo; Menegatti, Stefano; Parsons, Gregory N.; Li, Fanxing; Pirzada, Tahira; Khan, Saad A.

doi:10.1039/d3ta05299k

Cited by 7 publications

(2 citation statements)

References 67 publications

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“…Nye et al converted ALD‐grown ZnO on a fiber mat substrate into ZIF‐8 by exposing the substrate to HmIM vapor in glass vessels 69 . Similarly, Rahmaniam et al used this method to convert a ZnO‐coated nanofibrous aerogel into a ZIF‐8‐decorated nanofibrous aerogel 70 …”

Section: Cvdmentioning

confidence: 99%

Vapor‐phase synthesis of MOF films

Choe,

Lee,

Choi

2024

Bulletin Korean Chem Soc

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Fabrication of thin films is the most crucial step in introducing promising new materials into practical devices. Among the various materials, metal–organic framework (MOF) thin films have gained widespread attention with the advantage of diverse applications. In this review, two representative vapor‐phase synthetic methods, (1) molecular layer deposition (MLD), (2) chemical vapor deposition (CVD) are addressed as emerging techniques.

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Section: Cvdmentioning

confidence: 99%

Vapor‐phase synthesis of MOF films

Choe,

Lee,

Choi

2024

Bulletin Korean Chem Soc

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“…Nanofiber aerogels can realize functional expansion after being compounded with other materials. Rahmanian et al [28] innovatively synthesized metal organic framework materials (MOF) on electrospun porous nanofiber aerogel (NFA) so that composite materials have functional diversity. Liu et al [29] developed polyaniline (PANI) modified polyarylene ether nitrile (PEN) electrospinned nanofiber membranes (PANI@PEN) that can be used in the field of seawater desalination with an evaporation rate of 1.527 kg m −2 h −1 .…”

Section: Introductionmentioning

confidence: 99%

(Ca0.25La0.5Dy0.25)CrO3 Ceramic Fiber@Biomass-Derived Carbon Aerogel with Enhanced Solute Transport Channels for Highly Efficient Solar Interface Evaporation

Zhang,

Xue,

Zhang

et al. 2024

Materials

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The use of solar interface evaporation for seawater desalination or sewage treatment is an environmentally friendly and sustainable approach; however, achieving efficient solar energy utilization and ensuring the long-term stability of the evaporation devices are two major challenges for practical application. To address these issues, we developed a novel ceramic fiber@bioderived carbon composite aerogel with a continuous through-hole structure via electrospinning and freeze-casting methods. Specifically, an aerogel was prepared by incorporating perovskite oxide (Ca0.25La0.5Dy0.25)CrO3 ceramic fibers (CCFs) and amylopectin-derived carbon (ADC). The CCFs exhibited remarkable photothermal conversion efficiencies, and the ADC served as a connecting agent and imparted hydrophilicity to the aerogel due to its abundant oxygen-containing functional groups. After optimizing the composition and microstructure, the (Ca0.25La0.5Dy0.25)CrO3 ceramic fiber@biomass-derived carbon aerogel demonstrated remarkable properties, including efficient light absorption and rapid transport of water and solutes. Under 1 kW m−2 light intensity irradiation, this novel material exhibited a high temperature (48.3 °C), high evaporation rate (1.68 kg m−2 h−1), and impressive solar vapor conversion efficiency (91.6%). Moreover, it exhibited long-term stability in water evaporation even with highly concentrated salt solutions (25 wt%). Therefore, the (Ca0.25La0.5Dy0.25)CrO3 ceramic fiber@biomass-derived carbon aerogel holds great promise for various applications of solar interface evaporation.

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Highly Mesoporous Zr‐Based MOF‐Fabric Composites: A Benign Approach for Expeditious Degradation of Chemical Warfare Agents and Simulants

Abdelmigeed,

Mahle,

Peterson

et al. 2024

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Recent research has demonstrated the degradation of organophosphonates through hydrolysis using microporous UiO–66–NH2‐fabric composites. Yet, challenges remain due to the limitations of organophosphonates accessing active sites in large, engineered granules. To address this, an innovative approach to integrate mesoporous UiO–66–NH2 onto various fabrics is provided, thereby overcoming previous mass transfer limitations. Mesoporosity in the UiO–66–NH2‐fabric is attributed to the amphoteric cocamidopropylbetaine (CAPB) surfactant which templates the mesochannel construction. Unexpectedly, because the synthesis is aqueous, benign, low temperature (60°C), and avoids strong acids and toxic solvents, it is compatible with fragile supports such as untreated cotton. The UiO–66–NH2‐fabric composite formed using treated polypropylene (PP) attains a BET specific surface area of 360 m2 g−1comp. Remarkably, the mesoporous UiO–66–NH2‐composites exhibit a pore volume as large as 0.2 cm3 g−1comp, 33% in the mesoporous range, which is higher than other previous reports. Practically, the mesoporous UiO–66–NH2‐treated PP composite enhances the rate of methyl paraoxon (DMNP) degradation, showing a t1/2 value that is 15 times faster than microporous UiO–66–NH2 composites measured under the same conditions. Similar trends are observed in the degradation of actual nerve agents. These composites hold significant potential across diverse applications, including filtration, protection, and catalysis.

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Vapor phase synthesis of metal–organic frameworks on a nanofibrous aerogel creates enhanced functionality

Abstract: Vapor-phase synthesis of metal–organic frameworks (MOFs) on nanofibrous aerogels provides a hierarchically porous and mechanically robust material platform for use in a multitude of applications, from carbon dioxide capture to heavy metal removal.

Cited by 7 publications

References 67 publications

Vapor‐phase synthesis of MOF films

Vapor‐phase synthesis of MOF films

(Ca0.25La0.5Dy0.25)CrO3 Ceramic Fiber@Biomass-Derived Carbon Aerogel with Enhanced Solute Transport Channels for Highly Efficient Solar Interface Evaporation

Highly Mesoporous Zr‐Based MOF‐Fabric Composites: A Benign Approach for Expeditious Degradation of Chemical Warfare Agents and Simulants

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