Zn(II)-Embedded Nanoporous Covalent Organic Frameworks for Catalytic Conversion of CO₂ under Solvent-Free Conditions

ACS Applied Nano Materials, Год журнала: 2021, Номер 4(8), С. 7663 - 7674

Опубликована: Июль 28, 2021

Covalent organic frameworks (COFs) have been gaining substantial attention over the past decade due to their developing crystalline porous polymeric nature linked by strong covalent bonds and widespread applications in various fields. Currently, three-dimensional COFs (3D COFs) are engaging spotlight distinctive features, greater surface area, exceptional performances comparison with formerly published two-dimensional (2D) AA-stacking layered mode. In this paper, we present, for first time, a nanoporous 3D-COF-based zinc(II) catalyst (Zn@RIO-1), which shows an efficient pathway chemical conversion of carbon dioxide produce α-alkylidene cyclic carbonates oxazolidinones from propargylic alcohols. The microporous material high area (312.61 m2/g) facilitates both types catalytic reactions under atmospheric CO2 pressure. More importantly, easily recyclable reusable catalysts produced moderate yields desired as well oxazolidinone products solvent-free conditions. This study emphasizes capability catalysis field, more specifically field capture fixation fine chemicals. These results pave spectacular into alcohols using 3D-COF potential heterogeneous ligand sustainable conditions (i.e., solvent-free).

Язык: Английский

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Single-atomic Co-N site modulated exciton dissociation and charge transfer on covalent organic frameworks for efficient antibiotics degradation via peroxymonosulfate activation

Separation and Purification Technology, Год журнала: 2023, Номер 333, С. 125890 - 125890

Опубликована: Дек. 4, 2023

Язык: Английский

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Insights into the plasmonic “hot spots” and efficient hot electron injection induced by Ag nanoparticles in a covalent organic framework for photocatalytic H₂ evolution

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(9), С. 5392 - 5405

Опубликована: Янв. 1, 2024

The introduction of Ag NPs onto TpPa-1-COF using the FDTD method leads to enhancements in interfacial electric field intensity distribution and “hot spot” region, thereby boosting photocatalytic H 2 evolution efficiency.

Язык: Английский

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Silver Nanoparticle-Functionalized Postsynthetically Modified Thiol MOF UiO-66-NH-SH for Efficient CO₂ Fixation

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(8), С. 10196 - 10210

Опубликована: Фев. 15, 2024

Thiols are essential functional groups imparting unique properties, such as reactivity and selectivity, to many vital enzymes biomolecules. The integration of electronically soft thiol within metal-organic frameworks (MOFs) yields elevated a pronounced affinity for metal ions. However, the scarcity thiol-based ligands synthetic challenges hinder advancement MOFs. To bypass difficulties synthesizing MOFs by direct reaction between corresponding salts, postsynthetic modification (PSM) is an efficient strategy introduce functionality. Herein, we have introduced Ag nanoparticles in postsynthetically modified UiO-66-NH-SH (1) (synthesized UiO-66-NH

Язык: Английский

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Mesoporous covalent organic framework: An active photo-catalyst for formic acid synthesis through carbon dioxide reduction under visible light

Molecular Catalysis, Год журнала: 2020, Номер 484, С. 110730 - 110730

Опубликована: Янв. 14, 2020

Язык: Английский

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Green Synthesized AgNPs Embedded in COF: An Efficient Catalyst for the Synthesis of 2‐Oxazolidinones and α‐Alkylidene Cyclic Carbonates via CO₂ Fixation

ChemNanoMat, Год журнала: 2020, Номер 6(9), С. 1386 - 1397

Опубликована: Июнь 24, 2020

Abstract The synthesis of important organic chemicals through sustainable and green methods is always demanding for the scientific community. Fixation carbon dioxide this purpose very attractive as CO 2 non‐toxic, easily available, naturally abundant, recyclable, non‐flammable an inexpensive C1 resource, also concentration (most responsible greenhouse gas) reduced. This article demonstrates silver nanoparticles (AgNPs) by eco‐friendly method incorporation particles into a covalent framework in order to obtain heterogeneous catalyst, AgN@COF. catalyst has been characterized detail FT‐IR,UV‐Vis. spectroscopy, FE‐SEM, TEM, EDAX, XPS, PXRD, ICP‐AES, TG‐DTA N absorption‐desorption studies. synthesized able fix terminal propargylic amine alcohol production 2‐oxazolidinones α ‐alkylidene cyclic carbonates, respectively, two different catalytic pathways. In both protocols, one atmospheric was used. Production carbonates occurred at room temperature solvent‐free condition, were obtained under mild reaction conditions. Moreover, recyclable reusable. Its efficacy preserved even after use six consecutive cycles.

Язык: Английский

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High efficient solid-phase microextraction based on a covalent organic framework for determination of trifluralin and chlorpyrifos in water and food samples by GC-CD-IMS

Food Chemistry, Год журнала: 2021, Номер 373, С. 131527 - 131527

Опубликована: Ноя. 3, 2021

Язык: Английский

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Covalent organic framework based multifunctional self-sanitizing face masks

Journal of Materials Chemistry A, Год журнала: 2021, Номер 10(7), С. 3346 - 3358

Опубликована: Дек. 21, 2021

A COF-based multifunctional reusable face mask, which exhibits solar-powered self-sanitizing ability with excellent antibacterial and antiviral performance via a triple-modal synergistic treatment, is reported.

Язык: Английский

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Recent trends in covalent organic frameworks (COFs) for carbon dioxide reduction

Materials Advances, Год журнала: 2022, Номер 3(22), С. 8063 - 8080

Опубликована: Янв. 1, 2022

The review provides a concise report on various types of COFs, current trends, their application in CO 2 reduction via photochemical, electrochemical and photo coupled pathways.

Язык: Английский

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A Zn(ii)-functionalized COF as a recyclable catalyst for the sustainable synthesis of cyclic carbonates and cyclic carbamates from atmospheric CO₂

Organic & Biomolecular Chemistry, Год журнала: 2022, Номер 20(8), С. 1707 - 1722

Опубликована: Янв. 1, 2022

This study emphasizes the utility of a Zn( ii )-functionalized COF in developing heterogeneous recyclable catalytic system for generation cyclic carbonates (up to 99% yield) and carbamates 94% under sustainable conditions.

Язык: Английский

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