期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 26, 页码 10225-10230出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta00143e
关键词
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资金
- National Natural Science Foundation of China [50933006]
- Student Research Training Program (SRTP) of Zhejiang University
- Zhejiang Provincial Undergraduate Scientific and Technological Innovation Project
The surface structures and properties of a membrane largely determine its in-service performance during a filtration process. Here we report a facile hydrophilization method via co-deposition of mussel-inspired polydopamine (PDA) and polyethyleneimine (PEI) on a polypropylene microfiltration membrane. The deposition time is greatly shortened and the surface hydrophilicity is significantly improved compared to those membranes decorated only by PDA. The dopamine/PEI deposition solution can be reused several times with negligible effect on the surface hydrophilicity of membranes. Moreover, the PDA/PEI coating endows the membranes with ultra-high water permeability, allowing microfiltration separation of oil-in-water emulsions under atmospheric pressure.
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