Covalently Bound MOF/COF Aerogels as Robust Catalytic Filters for Rapid Nerve Agent Decomposition

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Metal–organic frameworks (MOFs) show promising results in various fields, such as gas separation and catalysis, but they face limitations due to problems associated with their low processability. This study addresses these challenges by utilizing postsynthetic modification (PSM) of NH2–UiO-66 NH2-MOF-808 1,3,5-benzene tricarbaldehyde (BTCA) form hybrid aerogels consisting MOF-loaded covalent organic framework (COF). BTCA-modified MOF nanoparticles via imine bond formation were confirmed 1H NMR, FTIR, solid-state 13C NMR spectroscopies. MOF/COF composites analyzed TGA, PXRD, BET, showing retained crystallinity increased porosity comparison the sum individual components. Moreover, improved aerogel mechanical properties loading up 75 wt % achieved for covalently bound aerogels. Hybrid successfully utilized catalytic filters decomposition nerve agent simulant pesticide dimethyl-4-nitrophenylphosphate (DMNP), avoiding secondary pollution powder catalysis.

Language: Английский

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Self-rotating wood-based floating solar-driven interfacial evaporator for continuous and high-efficiency desalination

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161363 - 161363

Published: March 1, 2025

Language: Английский

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Effective Regulation of Organic Radicals within a Radical-Doped Metal–Organic Framework by Post-Treatment

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

This work reports a rare radical-doped metal–organic framework (MOF) crystal with one-dimensional open channels achieved by coordination-driven self-assembly. X-ray single-crystal diffraction, solid-state UV–vis–NIR diffuse reflectance spectroscopy, and electron paramagnetic resonance analysis were used to clarify its unique structure why many organic radicals stably exist in the lattice. The study shows that this has strong intermolecular cofacial π–π interactions, narrow optical bandgap (only 1.47 eV), low LUMO, shallow HOMO. These features allow an inherent charge transfer, leading genetation of under ambient conditions. Interestingly, post-treatment can effectively adjust MOF. Mechanical grinding quickly reduces number radicals. Then, soaking sample N,N-dimethylformamide solution diphenylamine, para-methylaniline, or carbazole (as donors), physically these amine molecules, recover reduced some degree.

Language: Английский

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Thermal-induced coloration and photothermal conversion of an Ag-based coordination polymer with stable radicals

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(20), P. 7058 - 7066

Published: Jan. 1, 2024

An exceptional crystalline material only composed of non-radical components, exhibits radical-doping nature both under ambient conditions and high temperature 400 °C. Temperature can induce its color, spectra photothermal property variations.

Language: Английский

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The Efficient and Environmentally Friendly Chlorination of Arene, Alcohol, Halobenzene, and Peroxide Catalyzed by Fe–Ba Binary Oxides Using Hydrochloric Acid as Chlorine Source and Aqueous H2O2 as Oxidant

Molecules, Journal Year: 2024, Volume and Issue: 29(22), P. 5451 - 5451

Published: Nov. 19, 2024

A series of Fe-Ba mixed oxides, including a pure Fe-containing sample as reference, have been synthesized via sol-gel process using Fe

Language: Английский

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