Interfacial reorganization of scalable PEEK/ COF membrane via crystallization-induced shrinkage strategy for molecular sieving

IF 15.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2026-06-06 Epub Date: 2026-08-12 DOI:10.1007/s42114-026-01902-8

Xue Li, Zhiwei Zhao, Lulu Yuan, Liyuan Chen, Siwen Ding, Ren Qiang, Haibo Zhang, Jinhui Pang, Zhenhua Jiang

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引用次数: 0

Abstract

Incorporating covalent organic frameworks (COF)-fillers into mixed matrix membranes (MMMs) has great potential for scalable organic solvent nanofiltration (OSN). However, the deficient interfacial compatibility poses a fatal defect and contributes to dissatisfactory molecular sieving capability. Herein, we fabricate scalable polyether ether ketone/covalent organic frameworks (PEEK/COF) mixed-matrix membranes by crystallization-induced shrinkage strategy. By virtue of crystallization-induced shrinkage of the polymer substrate, the interface between COF and PEEK reorganized to form a defect-free separation layer. The optimal PEEK/COF membrane realizes a high ethanol permeance of 61.4 L m^− 2 h^− 1 bar ^− 1 and 90.6% rejection of sunset yellow (452 Da). The resultant membranes maintain superior rejection performance after immersing in an organic solvent at high temperature or continuous operation for 36 h. The universality is proved by blending other nanomaterials. This study provides a feasible method for the preparation of OSN membranes and promotes the practical scalable OSN application of nanomaterials-based separation membranes.

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通过结晶诱导收缩策略进行分子筛分的可扩展PEEK/ COF膜的界面重组

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.