Cu Nanoparticles Decorated on Magnetic NH2-MIL-101(Fe): A Highly Active Catalyst for C–N Coupling and Reductive Degradation of Dyes

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL Catalysis Letters Pub Date : 2025-01-02 DOI:10.1007/s10562-024-04893-7

Sukanya Sharma, Vrinda Sharma, Surbhi Sharma, Gunjan Vaid, Satya Paul

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Abstract

In the pursuit of advanced catalytic materials, the synergistic integration of diverse components within a single platform has emerged as a transformative strategy. This paper unveils the synthesis of Cu nanoparticles immobilized on different magnetic metal–organic frameworks [NH₂-MIL-101(Fe), MIL-101(Fe) and MIL-101(Cr)]. The main focus of the present work is to study the effect of different metal ion and ligand of the framework on the catalytic activity of Cu nanoparticles. The catalytic potential of synthesized catalysts was compared for C–N coupling and reductive degradation of organic dyes. Among the three synthesized catalysts, Cu@NH₂-MIL-101(Fe)/Fe₃O₄ demonstrated high activity attributed to the synergistic interaction between NH₂-MIL-101(Fe) and Cu as well as due to higher immobilization of catalytically active Cu nanoparticles. The catalyst offered virtues like mild reaction conditions, magnetically separable, ligand-free conditions, high product yield; and turnover number in the range of 3.68 to 5.46. Moreover, the catalyst maintains its structural integrity, chemical properties and effective magnetic response after five catalytic cycles, as demonstrated by FTIR, XRD, XPS and VSM analysis of the recycled catalyst.

Graphical Abstract

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磁性NH2-MIL-101（Fe）修饰的Cu纳米颗粒：C-N偶联和染料还原降解的高活性催化剂

在追求先进催化材料的过程中，在单一平台内将多种组件协同集成已成为一种变革性战略。本文研究了不同磁性金属-有机骨架[NH2-MIL-101(Fe), MIL-101（Fe）和MIL-101(Cr)]上固定化Cu纳米颗粒的合成。本文主要研究了不同金属离子和配体对铜纳米颗粒催化活性的影响。比较了合成的催化剂对C-N偶联和有机染料还原降解的催化性能。在三种合成的催化剂中，Cu@NH2-MIL-101(Fe)/Fe3O4表现出较高的活性，这是由于NH2-MIL-101（Fe）与Cu之间的协同作用以及催化活性Cu纳米颗粒的高固定化。该催化剂具有反应条件温和、可磁性分离、无配体、产率高等优点；周转率在3.68 ~ 5.46之间。回收催化剂的FTIR、XRD、XPS和VSM分析表明，经过5次催化循环后，催化剂保持了结构的完整性、化学性质和有效的磁响应。图形抽象

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来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.