Enhancing the interfacial interactions in PVDF/COF composite nanofiltration membranes for efficient antibiotic separation

IF 7.7 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2025-06-19 DOI:10.1016/j.coco.2025.102507

Qianpan Guo , Zhiwen Fan , Zihao Wang , Yufei Liu , Qingyang Zou , Handan Cui , Chenxiang Ai , Chunyue Pan , Shuai Gu , Juntao Tang , Guipeng Yu

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引用次数: 0

Abstract

As the demand for efficient water purification technologies grows, developing high-performance and precise separation membranes has emerged as a critical solution. Herein, we present an innovative approach to enhance the interfacial interactions between a polyvinylidene fluoride (PVDF) substrate and a covalent organic framework (COF) separation layer through carbonyl-functionalization of the PVDF surface. This functionalization strategy not only significantly improves interfacial adhesion but also introduces modifications that collectively elevate the overall performance of the composite membrane. The PVDF/COF composite membranes exhibited high water flux (90.8 L m⁻² h⁻¹ bar⁻¹) with a molecular weight cut-off (MWCO) of about 700 Da, surpassing the performance of state-of-the-art membranes. This study provides new insights into the fabrication of efficient PVDF nanofiltration membranes for advanced water treatment applications.

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增强PVDF/COF复合纳滤膜的界面相互作用以实现抗生素的高效分离

随着对高效水净化技术需求的增长，开发高性能和精确的分离膜已经成为一个关键的解决方案。在此，我们提出了一种创新的方法，通过PVDF表面的羰基功能化来增强聚偏氟乙烯（PVDF）底物与共价有机框架（COF）分离层之间的界面相互作用。这种功能化策略不仅显著提高了界面附着力，而且还引入了修饰，共同提高了复合膜的整体性能。PVDF/COF复合膜具有较高的水通量（90.8 L m−2 h−1 bar−1），分子量截止值（MWCO）约为700 Da，超过了现有膜的性能。该研究为高效PVDF纳滤膜的制备提供了新的见解。

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.