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工程化含碳点的MIL-53(Al)金属有机框架用于有机染料降解的协同光催化应用

Engineering MIL-53(Al) MOF with Carbon Dots for Synergistic Photocatalysis Applications in Organic Dye Degradation.

作者信息

Rehman Tanzeel Ul, Agnello Simonpietro, Gelardi Franco Mario, Madonia Antonino, Sciortino Alice, Calvino Martina Maria, Lazzara Giuseppe, Minervini Gianluca, Panniello Annamaria, Buscarino Gianpiero, Cannas Marco

机构信息

Dipartimento di Fisica e Chimica Emilio Segrè, Università degli Studi di Palermo, Palermo 90123, Italy.

Institute for Chemical and Physical Processes Bari Division, Italian National Research Council, Bari 70126, Italy.

出版信息

ACS Omega. 2025 Apr 30;10(18):18527-18538. doi: 10.1021/acsomega.4c11113. eCollection 2025 May 13.

DOI:10.1021/acsomega.4c11113
PMID:40385199
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12079226/
Abstract

This study investigates the integration of green- and red-emitting carbon dots into the MIL-53(Al) MOF, exploring the structural and optical properties and their impacts on photocatalytic capabilities regarding the photodegradation of the organic dye Rhodamine B. Both types of carbon dots significantly enhance the degradation efficiency, particularly the composites with neutral-red carbon dots at different pH levels. Furthermore, UV-vis absorption and time-resolved photoluminescence spectroscopies provide evidence of electronic structure modifications, such as the enhanced charge separation and the observation of new emission bands related to carbon dots. These findings agree with the structural and optical changes induced by carbon dots integration into the MIL-53(Al) MOF. In general, this research work elucidates the transformative potential of carbon dots and MOF-based composites for advanced material applications, including catalysis and environmental remediation.

摘要

本研究考察了绿色和红色发光碳点与MIL-53(Al)金属有机框架的整合情况，探究了其结构和光学性质，以及它们对有机染料罗丹明B光降解的光催化能力的影响。两种类型的碳点均显著提高了降解效率，尤其是在不同pH值下与中性红碳点形成的复合材料。此外，紫外可见吸收光谱和时间分辨光致发光光谱提供了电子结构改变的证据，如电荷分离增强以及观察到与碳点相关的新发射带。这些发现与碳点整合到MIL-53(Al)金属有机框架中所引起的结构和光学变化相一致。总体而言，这项研究工作阐明了碳点和基于金属有机框架的复合材料在包括催化和环境修复在内的先进材料应用方面的变革潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e654/12079226/1ea8ffadbc0f/ao4c11113_0009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e654/12079226/1ea8ffadbc0f/ao4c11113_0009.jpg

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本文引用的文献

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Nanomaterials (Basel). 2024 Feb 20;14(5):388. doi: 10.3390/nano14050388.
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Dye-Derived Red-Emitting Carbon Dots for Lasing and Solid-State Lighting.用于激光和固态照明的染料衍生红光发射碳点
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Photoreforming of Waste Polymers for Sustainable Hydrogen Fuel and Chemicals Feedstock: Waste to Energy.
用于可持续氢燃料和化工原料的废聚合物光重整：变废为能。
Chem Rev. 2023 Apr 26;123(8):4443-4509. doi: 10.1021/acs.chemrev.2c00602. Epub 2023 Apr 17.
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Carbon Dots Based Photoinduced Reactions: Advances and Perspective.基于碳点的光诱导反应：进展与展望。
Adv Sci (Weinh). 2023 Apr;10(12):e2207621. doi: 10.1002/advs.202207621. Epub 2023 Feb 3.
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Recent research progress in CDs@MOFs composites: fabrication, property modulation, and application.CDs@MOFs 复合材料的最新研究进展：制备、性能调控及应用。
Mikrochim Acta. 2022 Dec 15;190(1):28. doi: 10.1007/s00604-022-05597-8.
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Fluorescence determination of chloramphenicol in milk powder using carbon dot decorated silver metal-organic frameworks.利用碳点修饰的银金属有机骨架荧光法测定奶粉中的氯霉素。
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Facile synthesis of hierarchically structured MIL-53(Al) with superior properties using an environmentally-friendly ultrasonic method for separating lead ions from aqueous solutions.采用环保型超声法简便合成具有优异性能的分级结构MIL-53(Al)用于从水溶液中分离铅离子。
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