Preparation of Mixed Matrix Membranes Based on Covalent Organic Frameworks for Dye Separation from Water

IF 2 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

ChemistrySelect Pub Date : 2025-02-10 DOI:10.1002/slct.202405242

Menghao Lin, Linghao Wang, Wei Li, Li Chen, Jiangrong Chen, Hao Yan, Peizhang Zhou, Lichun Dong, Cailong Zhou

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引用次数: 0

Abstract

The pure organic nature and nanoporous structure of covalent organic frameworks (COFs) position them as promising candidates for mixed matrix membranes (MMMs). In this study, we synthesized TFB-BD(Me)₂ COFs as a nanofiller to fabricate MMMs for water treatment. The TFB-BD(Me)₂ particles exhibited significantly high crystallinity, high BET surface area, and uniform particle size, and could be synthesized at low temperature. We conducted a comprehensive investigation into the membrane structure, properties, and dye separation performance of the TFB-BD(Me)₂-incorporated MMMs. Our results demonstrate that MMMs containing 1.0 wt% TFB-BD(Me)₂ exhibited enhanced water permeance and dye rejection, overcoming the traditional trade-off between permeability and selectivity in polymer membranes. These next-generation COFs-based MMMs offer high efficiency, resource conservation, and cost-effectiveness, showing great potential for practical water purification applications.

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基于共价有机骨架的混合基质膜的制备及其在染料分离中的应用

共价有机框架（COFs）的纯有机性质和纳米孔结构使其成为混合基质膜（MMMs）的有希望的候选者。在这项研究中，我们合成了TFB-BD(Me)2 COFs作为纳米填料来制备用于水处理的MMMs。TFB-BD(Me)2颗粒具有明显的高结晶度、高BET表面积和均匀的粒径，可以在低温下合成。我们对TFB-BD(Me)2掺入的MMMs的膜结构、性能和染料分离性能进行了全面的研究。我们的研究结果表明，含有1.0 wt% TFB-BD(Me)2的MMMs具有增强的透水性和对染料的抑制作用，克服了聚合物膜中渗透性和选择性之间的传统权衡。这些基于cofs的下一代MMMs具有高效率，节约资源和成本效益，显示出巨大的实际水净化应用潜力。

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来源期刊

ChemistrySelect Chemistry-General Chemistry

CiteScore

3.30

自引率

4.80%

发文量

1809

审稿时长

1.6 months

期刊介绍： ChemistrySelect is the latest journal from ChemPubSoc Europe and Wiley-VCH. It offers researchers a quality society-owned journal in which to publish their work in all areas of chemistry. Manuscripts are evaluated by active researchers to ensure they add meaningfully to the scientific literature, and those accepted are processed quickly to ensure rapid online publication.