期刊
JOURNAL OF MEMBRANE SCIENCE
卷 602, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.memsci.2020.117971
关键词
Electrospary; Polyamide nanofiltration membrane; Interfacial polymerization
资金
- National Natural Science Foundation of China [51703233, 51973230, 5161101025]
- Zhejiang Provincial Natural Science Foundation of China for Distinguished Young Scholars [LR20E030002]
- Ten thousand plan-high level talents special support plan of Zhejiang province, China [ZJWR0108020]
- Nature Science Foundation of Ningbo [2018A610026]
Intercalated structure and electrosprayed interfacial polymerization methods have recently been proposed for permeability enhancement of polyamide membranes. In this study, a Span 80 intercalated polyamide nanofiltration membrane was fabricated through electrospray for simultaneously improving the surface structure, interfacial stability and separation performance. The membrane obtained through electrosprayed interfacial polymerization (EIP) showed a water flux of 83.0 L m(-2) h(-1) at an applied pressure of 5.0 bar. The intercalated Span 80 severed as multifunctional layer for simultaneously lowering surface roughness (RSa value of polyamide, 7 nm), enhancing interfacial stability (better anti-backwashing ability) and separation performance (enhanced water flux and BPA rejection). The current study provides new opportunities for fabricating polyamide nanofiltration membrane with high performance by combination of EIP and reactive interlayer strategy.
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