Contributors: Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, Shandong, PR China; State Key Laboratory of High-efficiency Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, Ningxia, PR China
نبذة مختصرة : Antifouling properties are considered to be crucial parameter to polyamide (PA) composite nanofiltration (NF) membranes for practical applications. In this study, an antifouling material, surface zwitterionization of Metal-organic frameworks (Z-MIL-101 (Cr)) was firstly prepared by decorating zwitterionic polymer onto the MOFs surface. Subsequently, a novel type of MOFs-based hybrid membranes were fabricated via mixing the Z-MIL-101 (Cr) nanoparticle with the organic matrix by interfacial polymerization technique. The most optimal hybrid membrane had a high water permeation of 26 L m-2 h-1 bar-1, which was 2.1 times higher than that pristine PA membrane, while the retention for Na2SO4 was still kept at a considerably high value of 93%. The significant increased water flue can attribute to the existence of water channels generated by the Z-MIL-101 (Cr). More important, the antifouling property of the hybrid membrane was much better than that pristine PA, which was due to the formation of superhydrophilic liquid layer surrounding the zwitterionic groups. The combination of the micropore structure of the MOFs and the excellent antifouling properties of the decorated zwitterionic polymer effectively improved separation performances and antifouling ability, which makes these hybrid membranes promising for water purification. ; The research was financially supported by the National Natural Science Foundation of China (21908130 and 22072070), the Natural Science Foundation of Shandong Province (ZR2019MB036) and Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering (Grant No. 2021-K09).
Relation: https://linkinghub.elsevier.com/retrieve/pii/S0045653522031770; Wang, C., Wang, H., Li, Y., Feng, Y., Liu, Z. qiu, Zhao, T. S., & Cao, L. (2022). Zwitterionic metal-organic frameworks modified polyamide membranes with enhanced water flux and antifouling capacity. Chemosphere, 309, 136684. https://doi.org/10.1016/j.chemosphere.2022.136684; Chemosphere; 136684; http://hdl.handle.net/10754/682252; 309
Rights: NOTICE: this is the author’s version of a work that was accepted for publication in Chemosphere. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chemosphere, [309, , (2022-10-04)] DOI:10.1016/j.chemosphere.2022.136684 . © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ ; 2024-10-04
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