Water-selective hybrid membranes with improved interfacial compatibility from mussel-inspired dopamine-modified alginate and covalent organic frameworks
Separation Science and Engineering|Updated:2026-01-06
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Water-selective hybrid membranes with improved interfacial compatibility from mussel-inspired dopamine-modified alginate and covalent organic frameworks
Water-selective hybrid membranes with improved interfacial compatibility from mussel-inspired dopamine-modified alginate and covalent organic frameworks
中国化学工程学报(英文版)2020年28卷第1期 页码:90-97
Affiliations:
1. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
2. Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin,China,300072
3. Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University,Tianjin,China,300072
4. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology,Beijing,China,100029
Hao Yang, Hong Wu, Fusheng Pan, 等. Water-selective hybrid membranes with improved interfacial compatibility from mussel-inspired dopamine-modified alginate and covalent organic frameworks[J]. 中国化学工程学报(英文版), 2020,28(1):90-97.
Hao Yang, Hong Wu, Fusheng Pan, Meidi Wang, Zhongyi Jiang, Qifan Cheng, Cheng Huang. Water-selective hybrid membranes with improved interfacial compatibility from mussel-inspired dopamine-modified alginate and covalent organic frameworks[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 90-97.
Hao Yang, Hong Wu, Fusheng Pan, 等. Water-selective hybrid membranes with improved interfacial compatibility from mussel-inspired dopamine-modified alginate and covalent organic frameworks[J]. 中国化学工程学报(英文版), 2020,28(1):90-97.DOI: 10.1016/j.cjche.2019.03.007.
Hao Yang, Hong Wu, Fusheng Pan, Meidi Wang, Zhongyi Jiang, Qifan Cheng, Cheng Huang. Water-selective hybrid membranes with improved interfacial compatibility from mussel-inspired dopamine-modified alginate and covalent organic frameworks[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 90-97.DOI: 10.1016/j.cjche.2019.03.007.
Water-selective hybrid membranes with improved interfacial compatibility from mussel-inspired dopamine-modified alginate and covalent organic frameworks
Hybrid membranes combining the merits of both polymer matrices and fillers have drawn extensive attention. The rational design of polymer-filler interface in hybrid membranes is vitally important for reducing the occurrence of void defects. Herein
imine-type covalent organic frameworks (COFs) were selected as the fillers due to their totally organic nature and multi-functionalities. Mussel-inspired dopamine-modified sodium alginate (AlgDA) was synthesized as the polymer matrix. The dopamine modification significantly improves the AlgDA-COF compatibility
which enhances the COF content up to 50 wt% in the hybrid membranes. The improved interfacial compatibility enhances the membrane separation selectivity. Accordingly
when utilized for dehydration of ethanol/water mixed solution (water concentration of 10 wt%)
the hybrid membrane reveals high water concentration of ~98.7 wt% in permeate
and stable permeation flux larger than 1500 g·m
-2
·h
-1
. This work might afford useful insights for fabricating hybrid membranes with high separation selectivity by optimizing the polymer-filler interface. Keywords:Alginate Dopamine
Covalent organic framework Membrane
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