Porous textile composites (PTCs) for the removal and the decomposition of chemical warfare agents (CWAs) – A review

Couzon, Nelly; Dhainaut, Jérémy; Campagne, Christine; Royer, Sébastien; Loiseau, Thierry; Volkringer, Christophe

doi:10.1016/j.ccr.2022.214598

Cited by 25 publications

(47 citation statements)

References 304 publications

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“…Moreover, the hydrolysis profile of DMNP catalyzed by MOF-808@PP-40% presented a short half-life ( t 1/2 ) of 5 min ( Figure 4 d), featuring it as one of the most efficient MOF/polymer composite catalysts for DMNP hydrolysis. 9 , 27 , 36 , 37 Additionally, the membrane of MOF-808@PP-40% showed an air permeability of 6.792 × 10 –3 L cm –2 S –1 , indicating air can pass through the membranes for their practical application as protective layers.…”

Section: Resultsmentioning

confidence: 99%

“…As expected, MOF-808@PP-40%, with the highest MOF-808 content, exhibited the highest catalytic activity toward the hydrolysis of DMNP, achieving 46 and 69% conversions after 2 and 20 min, respectively. Moreover, the hydrolysis profile of DMNP catalyzed by MOF-808@PP-40% presented a short half-life ( t 1/2 ) of 5 min (Figure d), featuring it as one of the most efficient MOF/polymer composite catalysts for DMNP hydrolysis. ,,, Additionally, the membrane of MOF-808@PP-40% showed an air permeability of 6.792 × 10 –3 L cm –2 S –1 , indicating air can pass through the membranes for their practical application as protective layers.…”

Section: Resultsmentioning

confidence: 99%

“…The typical powdered form of Zr-MOFs makes them unfeasible for direct application as protective layers. To solve this problem, Zr-MOFs can be integrated with polymeric fibers ( e.g., cotton, polyester, polysulfone, and polyamide) to produce MOF/polymer composite catalysts that can be readily processed to afford the desired form for improved practicality. − These Zr-MOFs/polymer composites could efficiently catalyze the hydrolysis of nerve agents/simulants in aqueous solutions, but these reactions are typically much slower in the solid phase due to their reliance on water media. The low efficiency of MOF/polymer composites in the solid phase is a major obstacle to their utility as protective layers for CWAs.…”

Section: Introductionmentioning

confidence: 99%

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MOF–Polymer Mixed Matrix Membranes as Chemical Protective Layers for Solid-Phase Detoxification of Toxic Organophosphates

Luo

Lin

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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Zirconium-based metal–organic frameworks (Zr-MOFs) have been demonstrated as potent catalysts for the hydrolytic detoxification of organophosphorus nerve agents and their simulants. However, the practical implementation of these Zr-MOFs is limited by the poor processability of their powdered form and the necessity of water media buffered by a volatile liquid base in the catalytic reaction. Herein, we demonstrate the efficient solid-state hydrolysis of a nerve agent simulant (dimethyl-4-nitrophenyl phosphate, DMNP) catalyzed by Zr-MOF-based mixed matrix membranes. The mixed matrix membranes were fabricated by incorporating MOF-808 into the blending matrix of poly(vinylidene fluoride) (PVDF), poly(vinylpyrrolidone) (PVP), and imidazole (Im), in which MOF-808 provides highly active catalytic sites, the hydrophilic PVP helps to retain water for promoting the hydrolytic reaction, and Im serves as a base for catalytic site regeneration. Impressively, the mixed matrix membranes displayed excellent catalytic performance for the solid-state hydrolysis of DMNP under high humidity, representing a significant step toward the practical application of Zr-MOFs in chemical protective layers against nerve agents.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

MOF–Polymer Mixed Matrix Membranes as Chemical Protective Layers for Solid-Phase Detoxification of Toxic Organophosphates

Luo

Lin

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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“…For fabric-based CPC, the protective effect is closely related to the absorption efficiency of the fabric against chemical hazards. , Therefore, Yan et al designed a hierarchical heterogeneous sponge nanofiber with radial gradient nanoarchitectures mediated by molecular cages to absorb CWAs . Song et al illustrated a chemical protective fabric with a biomimetic barrier structure composed of TPU/FPU NMs as a fiber framework and an SBS/acticarbon matrix .…”

Section: Introductionmentioning

confidence: 99%

Design and Preparation of Porous Meta-Aramid Fibers Filled with Highly Exposed Activated Carbon for Chemical Hazard Protection Fabrics

Zhou

Zhang

et al. 2023

ACS Appl. Polym. Mater.

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Chemical hazard protection safety and wear comfort of chemical protective clothing (CPC) are vital for the chemical personnel involved. Unfortunately, low air permeability and poor durability of adsorbate loading from conventional protective textiles coated with porous substances still cause tremendous threats to health and reduce working efficiency. Herein, to solve these limitations, highly exposed activated carbon (AC) nanoparticles are locked inside the chamber of porous meta-aramid fibers (PMIAs) from physical blending and wet-spinning as well. By controlling the pore parameters of PMIA fibers via adjusting the coagulation conditions (bath temperatures and bath composition) during the nonsolvent phase separation (NIPS) process, not only the inner AC is exposed highly but also the adsorption capability of AC-filled meta-aramid fibers to hazardous gases and corresponding mechanical properties is optimized. The resultant fiber (with 20 wt % AC) demonstrates a high adsorption capacity for benzene (102.26 mg/g), sufficient tensile strength (1.82 cN/dtex), and is recyclable. Finally, the further developed fabric from this composite fiber also offers a higher air permeability (11.4 cm 3 s −1 cm −2 ) and a firmer loading of AC compared to commercial CPC (FFF02). This work should serve as a source of inspiration for improving the comfort and safety of CPC.

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“…In this work, we report a novel aqueous‐based UiO‐66‐NH 2 synthesis route for rapid, high‐yield production of MOF‐polymer composites. As an example system, we chose UiO‐66‐NH 2 ‐composite polyester fabrics because these MOF‐fabrics have excellent performance for hydrolysis of toxic organophosphates including methyl paraoxon (DMNP) pesticides and chemical warfare agents (CWAs) including soman (GD), VX, and others [1,9,21,25,26] . This synthesis route is also amendable to other fabric types including spandex/polyester blends and polyamide.…”

Section: Introductionmentioning

confidence: 99%

Toxin‐Blocking Textiles: Rapid, Benign, Roll‐to‐Roll Production of Robust MOF‐Fabric Composites for Organophosphate Separation and Hydrolysis

et al. 2022

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Current approaches to create zirconium‐based metal–organic framework (MOF) fabric composites for catalysis, water purification, wound healing, gas sorption, and other applications often rely on toxic solvents, long reaction/post processing times, and batch methods hindering process scalability. Here, a novel mechanism was reported for rapid UiO‐66‐NH2 synthesis in common low‐boiling‐point solvents (water, ethanol, and acetic acid) and revealed acid–base chemistry promoting full linker dissolution and vapor‐based crystallization. The mechanism enabled scalable roll‐to‐roll production of mechanically resilient UiO‐66‐NH2 fabrics with superior chemical protective capability. Solvent choice and segregated spray delivery of organic linker and metal salt MOF precursor solutions allowed for rapid MOF nucleation on the fiber surface and decreased the energy and time needed for post‐processing, producing an activated composite in less than 165 min, far outpacing conventional MOF‐fabric synthesis approaches. The MOF‐fabric hydrolyzed and blocked permeation of the chemical warfare agent soman, outperforming the protection‐standard activated carbon cloth. This work presents both chemical insights into Zr‐MOF powder and fabric composite formation by a rapid, industrially relevant approach and demonstrates its practicality and affordability for high‐performing personal protective equipment.

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Porous textile composites (PTCs) for the removal and the decomposition of chemical warfare agents (CWAs) – A review

Cited by 25 publications

References 304 publications

MOF–Polymer Mixed Matrix Membranes as Chemical Protective Layers for Solid-Phase Detoxification of Toxic Organophosphates

MOF–Polymer Mixed Matrix Membranes as Chemical Protective Layers for Solid-Phase Detoxification of Toxic Organophosphates

Design and Preparation of Porous Meta-Aramid Fibers Filled with Highly Exposed Activated Carbon for Chemical Hazard Protection Fabrics

Toxin‐Blocking Textiles: Rapid, Benign, Roll‐to‐Roll Production of Robust MOF‐Fabric Composites for Organophosphate Separation and Hydrolysis

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