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High performance forward osmosis cellulose acetate (CA) membrane modified by polyvinyl alcohol and polydopamine
Song, Hai-ming; Zhu, Li-jing; Zeng, Zhi-xiang; Xue, Qun-ji
2018
发表期刊JOURNAL OF POLYMER RESEARCH
卷号25期号:7
摘要Cellulose acetate (CA) is a low cost and readily available material widely used in forward osmosis (FO) membranes. However, the performance of pure CA membranes is not good enough in salt separation and the traditional modification methods are generally multistep and difficult to control. In this paper, we reported high performance cellulose acetate (CA) composite forward osmosis (FO) membranes modified with polyvinyl alcohol (PVA) and polydopamine (PDA). PVA was first cross-linked onto the surface of CA membranes, and then PDA was coated with a rapid deposition method. The membranes were characterized with respect to membrane chemistry (FTIR and XPS), surface properties comprising wettability (by water contact angle), and osmosis performance. The modified membrane coated by PVA and PDA shown better hydrophilicity and exhibited 16.72 LMH osmotic water flux and 0.14 mMH reverse solute flux with DI water as feed solution and 2.0 M NaCl as draw solution and active layer facing the feed solution. This simple and highly effective modification method makes it as an excellent candidate for further exploration for FO.
关键词Thin-film-composite Hollow-fiber Membranes Interfacial Polymerization Osmotic Concentration Waste-water Optimization Desalination Bioreactor
学科领域Science & Technology - Other Topics ; Materials Science
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17372
专题2018专题
推荐引用方式
GB/T 7714
Song, Hai-ming,Zhu, Li-jing,Zeng, Zhi-xiang,et al. High performance forward osmosis cellulose acetate (CA) membrane modified by polyvinyl alcohol and polydopamine[J]. JOURNAL OF POLYMER RESEARCH,2018,25(7).
APA Song, Hai-ming,Zhu, Li-jing,Zeng, Zhi-xiang,&Xue, Qun-ji.(2018).High performance forward osmosis cellulose acetate (CA) membrane modified by polyvinyl alcohol and polydopamine.JOURNAL OF POLYMER RESEARCH,25(7).
MLA Song, Hai-ming,et al."High performance forward osmosis cellulose acetate (CA) membrane modified by polyvinyl alcohol and polydopamine".JOURNAL OF POLYMER RESEARCH 25.7(2018).
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