Nanoarray-fortified ultra-durable nanofiber membrane via sequential crystallization.

Xiquan Cheng, Mi Zhou, Jingwen Zhou, Linlin Yan, Xu Jiang, Yingjie Zhang, Yuxuan Sun, Qifeng Zhang, Jun Ma, Lu Shao

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Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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10 authors.

Xiquan Cheng *State Key Laboratory of Urban-rural Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai, China. chengxiquan@hit.edu.cn.ORCID http://orcid.org/0000-0001-8050-8805

Mi Zhou *State Key Laboratory of Urban-rural Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai, China.

Jingwen ZhouState Key Laboratory of Urban-rural Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai, China.

Linlin YanState Key Laboratory of Urban-rural Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai, China.

Xu JiangAdvanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia. xu.jiang@hit.edu.cn.ORCID http://orcid.org/0000-0002-4555-8812

Yingjie ZhangState Key Laboratory of Urban-rural Water Resource and Environment, School of Marine Science and Technology, Harbin Institute of Technology, Weihai, China.

Yuxuan SunKey Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China.

Qifeng ZhangKey Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, China.

Jun MaState Key Laboratory of Urban-rural Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, China.

Lu ShaoMIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, State Key Laboratory of Urban-rural Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin, China. shaolu@hit.edu.cn.ORCID http://orcid.org/0000-0002-4161-3861

Funding

National Natural Science Foundation of China (National Science Foundation of China) 52573109National Natural Science Foundation of China (National Science Foundation of China) 92475205

6 · The paper itself

Abstract

Advanced polymeric nanofiber membranes (PNMs) are hindered by intrinsically low mechanical strength and stability, especially under harsh conditions of oily water separation. Here, we report an approach to simultaneously enhance the tensile strength, stability and hydrophilicity of PNMs by sequentially crystallizing the covalent organic framework (COF) and poly(ether-etherketone) (PEEK). During the process, a superhydrophilic pine-needle-shaped COF nanoarray layer is inserted into the PEEK nanofibers to form a mechanical interlocking structure through the entanglement between PEEK non-crystallizing polymer chains and the hetero-interpenetration crystal structure consisting of COF crystal and PEEK crystal regions. Both simulation and experimental results show that the mechanical interlocking structure enhances the mechanical properties (16.2 MPa) and harsh-condition stability of the PNMs. In addition, the rigid COF nanoarray layer significantly improves the affinity with water, thereby enhancing the emulsion permeance up to 3.4 ×10

Identifiers

PMID41419778

DOI10.1038/s41467-025-67896-x

PMCPMC12855290

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LicenceCC BY-NC-ND

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.