Synthetic control of correlated disorder in UiO-66 frameworks

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Окт. 31, 2023

Abstract Changing the perception of defects as imperfections in crystalline frameworks into correlated domains amenable to chemical control and targeted design might offer opportunities for porous materials with superior performance or distinctive behavior catalysis, separation, storage, guest recognition. From a standpoint, establishment synthetic protocols adapted generation growth disorder is crucial consider defect engineering practicable route towards adjusting framework function. By using UiO-66 experimental platform, we systematically explored space corresponding defective materials. Periodic arising from controlled missing cluster vacancies can be chemically by relative concentration linker modulator, which has been used isolate crystallographically pure “disordered” reo phase. Cs-corrected scanning transmission electron microscopy proof coexistence vacancies, whose sizes are fixed concentration. The distribution porosity catalytic activity material reveals that, contrarily common belief, surpassing certain threshold have detrimental effect.

Язык: Английский

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MOFganic Chemistry: Challenges and Opportunities for Metal–Organic Frameworks in Synthetic Organic Chemistry

Chemistry of Materials, Год журнала: 2023, Номер 35(13), С. 4883 - 4896

Опубликована: Июнь 21, 2023

Metal–organic frameworks (MOFs) are porous crystalline solids constructed from organic linkers and inorganic nodes that have been widely studied for applications in gas storage, chemical separations, drug delivery. Owing to their highly modular structures tunable pore environments, we propose MOFs significant untapped potential as catalysts reagents relevant the synthesis of next-generation therapeutics. Herein, outline properties make them promising synthetic chemistry, including new reactivity selectivity, enhanced robustness, user-friendly preparation. In addition, challenges facing field directions maximize utility synthesis. This Perspective aims bring together MOF communities develop heterogeneous platforms capable achieving transformations cannot be replicated by homogeneous systems.

Язык: Английский

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Boosting catalytic performance for CO2 cycloaddition under mild condition via amine grafting on MIL-101-SO3H catalyst

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(1), С. 111852 - 111852

Опубликована: Янв. 2, 2024

Язык: Английский

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Targeted Enrichment of Nucleic Acid Bionic Arms Enhances the Hydrolysis Activity of Nanozymes for Degradation and Real-Time Monitoring of Organophosphorus Pesticides in Water

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 15, 2025

Organophosphorus pesticides (OPs) pose significant environmental and health risks, their detoxification through catalytic hydrolysis using zirconium-based metal–organic frameworks (Zr-MOFs) has attracted considerable interest due to the strong Lewis acid metal ions. Albeit important, defects of materials for OP (e.g., poor degradation efficiency, rate, selectivity) limit further application. Herein, a nucleic bionic arm-modified biomimetic nanozyme (MOF-808-Apt) was designed Zr-MOF specific aptamer against OPs, which employed efficient selective OPs. At system, functionalized can continuously capture trace OPs onto its sites with fabricated arms, significantly improving activities compared bare MOF-808 paraoxon as model providing better performances including (i) an excellent boosting from 4 over 60% within 6 min; (ii) satisfactory rate (the pseudo-first-order constants improved 0.09 0.14 min–1); (iii) good because aptamers used. Besides, this dynamic process could be visually recorded in real time high sensitivity (limit detection, 0.18 μM) obvious color change reaction solution signal amplification ascribed increasing local concentrations targets by arms. Summarily, work provides new strategy effective typical concurrent monitoring process.

Язык: Английский

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Functional metal–organic frameworks constructed from triphenylamine-based polycarboxylate ligands

Coordination Chemistry Reviews, Год журнала: 2020, Номер 420, С. 213354 - 213354

Опубликована: Июнь 8, 2020

Язык: Английский

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