Green preparation of metal–organic frameworks in deep eutectic systems with boosted photocatalytic activity

IF 2.8 4区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Journal of chemical technology and biotechnology Pub Date : 2025-01-29 DOI:10.1002/jctb.7817

Wenqian Jiang, Yumei Chen, Xinru Ding, Wentao Bi

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引用次数: 0

Abstract

Background

Metal–organic frameworks (MOFs) are known for their extensive specific surface area, robust stability, and diverse active sites, which make them highly effective for applications in photocatalysis. The deep eutectic system (DESys) offers a green alternative to traditional toxic organic solvents and can impart novel, eco-friendly properties to synthesized materials. This study investigates DESys/MIL-100(Fe), a MOF synthesized within a DESys, and its application for the photocatalytic decomposition of tetracycline hydrochloride (TC-HCl). Compared to conventional synthesis methods, the DESys-based approach avoids the use of toxic hydrofluoric acid and high-pressure reaction equipment, making it more environmentally friendly and potentially suitable for large-scale industrial production of MOFs.

Results

The results showed that DESys/MIL-100(Fe) demonstrated significantly better photocatalytic performance for TC-HCl degradation than the traditional MIL-100(Fe) synthesized by conventional methods. After 2 h of visible-light exposure, the decomposition efficiency of TC-HCl reached 91.20% with DESys/MIL-100(Fe), while it was only 38.74% with MIL-100(Fe) under identical conditions. The improved performance of DESys/MIL-100(Fe) can be attributed to its enhanced adsorption capabilities, increased number of active sites, greater absorption of visible light, and higher carrier density. These factors contribute to its superior catalytic efficiency.

Conclusion

The findings demonstrate that DESys/MIL-100(Fe) not only exhibits outstanding stability and catalytic performance in the degradation of pollutants but also highlights the potential of using DESys for the green synthesis of high-performance MOFs. This approach offers a sustainable pathway for the large-scale production of MOFs with superior photocatalytic properties for environmental applications. © 2025 Society of Chemical Industry (SCI).

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光催化活性增强的深共晶体系中金属有机骨架的绿色制备

金属有机骨架（mof）以其广泛的比表面积、稳定的稳定性和多样的活性位点而闻名，这使得它们在光催化方面的应用非常有效。深共晶系统（DESys）为传统的有毒有机溶剂提供了一种绿色替代品，可以赋予合成材料新颖、环保的特性。研究了DESys/MIL-100（Fe）光催化降解盐酸四环素（TC-HCl）的MOF。与传统的合成方法相比，基于desys的方法避免了使用有毒的氢氟酸和高压反应设备，使其更加环保，可能适用于mof的大规模工业生产。结果结果表明，DESys/MIL-100（Fe）对TC-HCl的光催化性能明显优于传统方法合成的MIL-100（Fe）。在可见光照射2 h后，DESys/MIL-100（Fe）对TC-HCl的分解效率达到91.20%，而在相同条件下，MIL-100（Fe）对TC-HCl的分解效率仅为38.74%。DESys/MIL-100（Fe）性能的提高可归因于其增强的吸附能力、增加的活性位点数量、更好的可见光吸收和更高的载流子密度。这些因素使其具有优异的催化效率。结论DESys/MIL-100（Fe）不仅在降解污染物方面表现出优异的稳定性和催化性能，而且在绿色合成高性能MOFs方面具有重要的应用前景。这种方法为大规模生产具有优异光催化性能的MOFs提供了可持续的途径。©2025化学工业学会（SCI）。

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来源期刊

Journal of chemical technology and biotechnology 工程技术-工程：化工

CiteScore

7.00

自引率

5.90%

发文量

268

审稿时长

1.7 months

期刊介绍： Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.