Metal–organic framework structure–property relationships for high-performance multifunctional polymer nanocomposite applications

Unnikrishnan, Vishnu; Zabihi, Omid; Ahmadi, Mojtaba; Li, Quanxiang; Blanchard, P.; Kızıltaş, Alper; Naebe, Minoo

doi:10.1039/d0ta11255k

Cited by 54 publications

(18 citation statements)

References 265 publications

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“…Zeolitic imidazolate (ZIF-8) metal organic frameworks have been used for highly efficient PM2.5 capture due to their excellent chemical and thermal stability. ZIF-8-modified soluble polyimide (PI) nanofibrous membranes present a high PM2.5 filtration efficiency (up to 96.6 ± 2.9%), superior thermal stability (up to 300 • C), good transmittance, excellent mechanical properties, and low pressure drop, making them a suitable candidate for PM2.5 capture, especially in harsh conditions [198,199].…”

Section: The Development Of Sustainable Facemasksmentioning

confidence: 99%

Facemask Global Challenges: The Case of Effective Synthesis, Utilization, and Environmental Sustainability

et al. 2022

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Coronavirus disease (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has caused a rapidly spreading pandemic and is severely threatening public health globally. The human-to-human transmission route of SARS-CoV-2 is now well established. The reported clinical observations and symptoms of this infection in humans appear in the range between being asymptomatic and severe pneumonia. The virus can be transmitted through aerosols and droplets that are released into the air by a carrier, especially when the person coughs, sneezes, or talks forcefully in a closed environment. As the disease progresses, the use and handling of contaminated personal protective equipment and facemasks have become major issues with significant environmental risks. Therefore, providing an effective method for treating used/contaminated facemasks is crucial. In this paper, we review the environmental challenges and risks associated with the surge in facemask production. We also discuss facemasks and their materials as sources of microplastics and how disposal procedures can potentially lead to the contamination of water resources. We herein review the potential of developing nanomaterial-based antiviral and self-cleaning facemasks. This review discusses these challenges and concludes that the use of sustainable and alternative facemask materials is a promising and viable solution. In this context, it has become essential to address the emerging challenges by developing a new class of facemasks that are effective against the virus, while being biodegradable and sustainable. This paper represents the potentials of natural and/or biodegradable polymers for manufacturing facemasks, such as wood-based polymers, chitosan, and other biodegradable synthetic polymers for achieving sustainability goals during and after pandemics.

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Section: The Development Of Sustainable Facemasksmentioning

confidence: 99%

Facemask Global Challenges: The Case of Effective Synthesis, Utilization, and Environmental Sustainability

et al. 2022

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“…Recently, metal-organic framework composites have been extensively studied because of their novel physical and chemical properties and improved performances, which cannot be achieved by the individual parts [16][17][18]. It has been shown that by composing MOFs with suitable materials, the structure [19,20], stability [21,22], morphology [23,24], and physicochemical properties [25,26] can be signi cantly enhanced, and thus these materials provide promising applications in the areas of catalysis [27], small-molecule adsorption, storage and separation [28], batteries [29], and biomedical imaging and drug delivery [30].…”

Section: Introductionmentioning

confidence: 99%

A manganese oxide/MOF nano-composite for the adsorption of methylene blue from an aqueous solution

Geranmayeh

Moradi²

2022

Preprint

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Metal-organic framework composites exhibit several advantages, including water stability which is critical for the actual applications of MOF in aqueous-phase media. In this regard, a new MnO2/IRMOF-3 composite material was synthesized via the bottle-around-ship method and characterized using different methods such as FT-IR, PXRD, BET, TGA SEM-EDX analyses. The diffraction peaks reveal the high crystallinity of prepared material. Decrease in surface area for the composite material compared to IRMOF-3 can be attributed to the partial filling of the IRMOF-3 pores by the MnO2 nanoparticles. The potential of the synthesized material was examined for the removal of methylene blue from an aqueous solution. The effect of adsorbent dosages, adsorbate concentration, pH of the solution, and adsorbant-adsorbate contact time was investigated. The synthesized material shows high efficiency in removing the methylene blue from an aqueous solution at almost neutral pH conditions with low contact time. The results reveal the advantages of composite material over parent MOF material for applications in aqueous media.

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“…9 MOFs are highly unique, and their structure can be finely tuned and designed according to the specific applications. 10 Lately, MOFs have been utilized to introduce flame retardancy to polymer matrices in nanocomposites. For example, Shi et al 11 used 3 wt % zeolitic imidazolate framework-8 (ZIF-8) MOFs to improve the limited oxygen index value of the poly(lactic acid) (PLA) reinforced MOF composites by 26%.…”

Section: Introductionmentioning

confidence: 99%

“…Metal–organic frameworks (MOFs), which are a combination of hybrid organic–inorganic compounds with a highly porous and crystalline structure, are increasingly being used in the development of polymer nanocomposites . MOFs are highly unique, and their structure can be finely tuned and designed according to the specific applications . Lately, MOFs have been utilized to introduce flame retardancy to polymer matrices in nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Organophosphorus-Functionalized Zirconium-Based Metal–Organic Framework Nanostructures for Improved Mechanical and Flame Retardant Polymer Nanocomposites

Unnikrishnan

Zabihi

et al. 2021

ACS Appl. Nano Mater.

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Metal−organic framework (MOF) nanostructures provide unique opportunities in the fabrication of multifunctional polymer nanocomposites. However, achieving both enhanced mechanical properties and fire safety using labile metal−organic framework (MOF) reinforced epoxy composites is usually challenging, calling for post-synthetic modification (PSM) of MOFs. In this study, we have synthesized an organophosphorus functionalized zirconium-based MOF, P-UiO-66 NH 2 (P-MOF). This as-synthesized modified MOF when reinforced with epoxy showcased improved mechanical and flame retardancy performance. Interestingly, the addition of 1 wt % of P-MOF in epoxy resin increases the tensile and flexural strength by 13.8 and 28.8% compared to the neat epoxy system. Similarly, in comparison with the pure epoxy nanocomposites, the tensile and flexural modulus of P-MOF reinforced nanocomposites was increased by 21.9 and 27.8%, respectively. Further, the flame retardancy properties of the P-MOF composites exhibited decreasing peak heat release rate (pHRR), smoke production rate (SPR), and carbon monoxide emission (CO) by 30, 42, and 43%, respectively, in parallel to the neat epoxy reinforced nanocomposites. This multifunctional property is primarily attributed to the enriched synergistic effects of the P-MOF with epoxy matrix, which promoted increased char layers on the epoxy surface, thus creating a carbonaceous layer to restrain the flame growth.

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Metal–organic framework structure–property relationships for high-performance multifunctional polymer nanocomposite applications

Abstract: Metal organic frameworks (MOFs) have emerged as a new class of crystalline nanomaterials with ultrahigh porosities and high internal surface areas. Recently, these MOFs structures with their extraordinary inherent properties...

Cited by 54 publications

References 265 publications

Facemask Global Challenges: The Case of Effective Synthesis, Utilization, and Environmental Sustainability

Facemask Global Challenges: The Case of Effective Synthesis, Utilization, and Environmental Sustainability

A manganese oxide/MOF nano-composite for the adsorption of methylene blue from an aqueous solution

Organophosphorus-Functionalized Zirconium-Based Metal–Organic Framework Nanostructures for Improved Mechanical and Flame Retardant Polymer Nanocomposites

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