氨基功能化铜基金属有机骨架增强四环素吸附性能的机理研究

IF 4.8 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials Pub Date : 2025-06-06 DOI:10.1016/j.micromeso.2025.113727

Jia-Ting Chen, Hui Zhang, Si-Tong Chen, Wen-Bin Chen, Meng Yang, Yan-Yong Lin, Wen Dong

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引用次数: 0

摘要

四环素在水生环境中的积累对人类健康和生态系统构成重大风险。为了解决这一挑战，我们首次合成了两种新型铜（II）基mof: {[NH2(CH3)2][Cu2O(Ad) (BDC)]·（H2O）2·（DMA）} （IISERP-MOF26）及其氨基功能化衍生物{[NH2(CH3)2][Cu2O(Ad) (NH2-BDC)]·（H2O）2·（DMA）} （NH2-IISERP-MOF26）。系统表征（SEM， FTIR， XRD， BET）证实了NH2-IISERP-MOF26的成功合成和表面性能的增强。值得注意的是，NH2-IISERP-MOF26的TC吸附量（52.64 mg g−1）比未功能化的mof26高2.7倍，超过了许多基于mof的吸附剂(例如MIL-101(Fe): 35.2 mg g−1；ZIF-8: 29.4 mg g−1；UIO-66: 23.1 mg g−1)。动力学和等温线研究表明，多层吸附受氢键控制，氨基作为关键活性位点。这项工作不仅提供了一种通过氨基功能化定制mof的简单策略，而且为设计高效吸附剂以减轻抗生素污染建立了新的范例。

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Insights into the mechanism of enhanced tetracycline adsorption performance using the amino functionalization copper(II)-based metal-organic frameworks

Tetracycline (TC) accumulation in aquatic environments poses significant risks to human health and ecosystems. To address this challenge, we report the first synthesis of two novel copper (II)-based MOFs: {[NH₂(CH₃)₂][Cu₂O(Ad) (BDC)]·(H₂O)₂·(DMA)} (IISERP-MOF26) and its amino-functionalized derivative {[NH₂(CH₃)₂][Cu₂O(Ad) (NH₂-BDC)]·(H₂O)₂·(DMA)} (NH₂-IISERP-MOF26). Systematic characterization (SEM, FTIR, XRD, BET) confirmed the successful synthesis and enhanced surface properties of NH₂-IISERP-MOF26. Remarkably, NH₂-IISERP-MOF26 exhibited a 2.7-fold higher TC adsorption capacity (52.64 mg g⁻¹) than its non-functionalized counterpart, surpassing many reported MOF-based adsorbents (e.g., MIL-101(Fe): 35.2 mg g⁻¹; ZIF-8: 29.4 mg g⁻¹; UIO-66: 23.1 mg g⁻¹). Kinetic and isotherm studies revealed multilayer adsorption governed by hydrogen bonding, with amino groups acting as critical active sites. This work not only provides a simple strategy for tailoring MOFs via amino functionalization but also establishes a new paradigm for designing high-efficiency adsorbents to mitigate antibiotic pollution.

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来源期刊

Microporous and Mesoporous Materials 化学-材料科学：综合

CiteScore

10.70

自引率

5.80%

发文量

649

审稿时长

26 days

期刊介绍： Microporous and Mesoporous Materials covers novel and significant aspects of porous solids classified as either microporous (pore size up to 2 nm) or mesoporous (pore size 2 to 50 nm). The porosity should have a specific impact on the material properties or application. Typical examples are zeolites and zeolite-like materials, pillared materials, clathrasils and clathrates, carbon molecular sieves, ordered mesoporous materials, organic/inorganic porous hybrid materials, or porous metal oxides. Both natural and synthetic porous materials are within the scope of the journal. Topics which are particularly of interest include: All aspects of natural microporous and mesoporous solids The synthesis of crystalline or amorphous porous materials The physico-chemical characterization of microporous and mesoporous solids, especially spectroscopic and microscopic The modification of microporous and mesoporous solids, for example by ion exchange or solid-state reactions All topics related to diffusion of mobile species in the pores of microporous and mesoporous materials Adsorption (and other separation techniques) using microporous or mesoporous adsorbents Catalysis by microporous and mesoporous materials Host/guest interactions Theoretical chemistry and modelling of host/guest interactions All topics related to the application of microporous and mesoporous materials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.