Affiliation:
1. Hebei Key Laboratory of Inorganic Nano‐materials College of Chemistry and Materials Science Hebei Normal University Shijiazhuang 050024 China
2. Department of Chemical and Biological Sciences S. N. Bose National Centre for Basic Sciences Kolkata 700106 India
3. Department of Chemistry Functional Materials Technische Universität Berlin Hardenbergstr. 40 10623 Berlin Germany
Abstract
AbstractTechniques beyond crystal engineering are critical for manufacturing covalent organic frameworks (COFs) and to explore them for advanced applications. However, COFs are normally obtained as insoluble, unmeltable, and thus nonprocessible microcrystalline powders. Therefore, it is a significant challenge to implement COFs into larger architectures and structural control on different length scales. Herein, a facile strategy is presented to prepare flexible COF nanofiber membranes by in‐situ growth of COFs on polyacrylonitrile (PAN) nanofiber substrates via a reversible polycondensation‐termination approach. The obtained PAN@COF nanofiber membranes with vertically aligned COF nanoplates combine a large functional surface with efficient mass transport, thus making it a promising adsorbent, for example, for water purification. The antibiotic pollutant ofloxacin (OFX) is removed from water with a superior absorption capacity of ≈236 mg g−1 and removal efficiency as high as 98%. The here presented in‐situ growth of COFs on nanofiber membranes can be extended to various Schiff base‐derived COF materials with different compositions, providing a highly efficient way to construct flexible COF‐based membranes for several applications.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Hebei Province
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry
Cited by
25 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献