High performance filtration nanofibrous membranes based on hydrophilic poly(vinyl alcohol-co-ethylene) copolymer
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- 作者：Mufang Li ; Xiao Xue ; Dong Wang ; Ying Lu ; Zhihong Wu ; Hanzhi Zou
- 关键词：PVA-co-PE ; Nanofiber ; Nanofibrous membrane ; Filtration
- 刊名：Desalination
- 出版年：2013
- 出版时间：15 November, 2013
- 年：2013
- 卷：329
- 期：Complete
- 页码：50-56
- 全文大小：1184 K
文摘
A novel high performance hydrophilic poly(vinyl alcohol-co-ethylene) (PVA-co-PE) nanofiber membrane for filtration media was prepared and characterized in this study. The PVA-co-PE nanofibers for the membrane preparation were fabricated based on a high throughput, cost effective and environmental friendly method developed by us. The basic properties of PVA-co-PE nanofibrous membrane and commercially available membrane (mixed cellulose ester membrane) including morphology, pore size distribution, contact angle, mechanics, water flux and filtration efficiency were investigated. The rejection rate of PVA-co-PE nanofibrous membrane (nanofiber density is 3 g/m2) to TiO2 suspension was above 99 % , and such unique hydrophilic nanofibrous membrane exhibited a flux rate significantly higher than the commercial microfiltration membrane. The results indicated that PVA-co-PE nanofibrous membrane prepared by this method was a hydrophilic and high performance membrane which could be used in the microfiltration fields.