Novel CA/PVDF nanofiber supports strategically designed via coaxial electrospinning for high performance thin-film composite forward osmosis membranes for desalination 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Desalination: The International Journal on the Science and Technology of Desalting and Water Purification
年/卷/期
2018 / 445 /
页码
63-74
ISSN号
0011-9164
作者单位
Kobe Univ, Dept Chem Sci & Engn, Ctr Membrane & Film Technol, Nada Ku, 1-1 Rokkodaicho, Kobe, Hyogo 6578501, Japan;UTS, Sch Civil & Environm Engn, CTWW, POB 123,15 Broadway, Sydney, NSW 2007, Australia;UTS, Sch Civil & Environm Engn, CTWW, POB 123,15 Broadway, Sydney, NSW 2007, Australia;UTS, Sch Civil & Environm Engn, CTWW, POB 123,15 Broadway, Sydney, NSW 2007, Australia;Kobe Univ, Dept Chem Sci & Engn, Ctr Membrane & Film Technol, Nada Ku, 1-1 Rokkodaicho, Kobe, Hyogo 6578501, Japan;UTS, Sch Civil & Environm Engn, CTWW, POB 123,15 Broadway, Sydney, NSW 2007, Australia;
作者
Shibuya, Masafumi;Park, Myoung Jun;Lim, Sungil;Phuntsho, Sherub;Matsuyama, Hideto;Shon, Ho Kyong;
摘要
This study introduces a novel electrospun nanofiber mat fabricated via coaxial electrospinning as a support for high performance thin-film composite (TFC) forward osmosis (FO) membrane. This method produces a dual layer composite nanofiber support consisted of a polyvinylidene fluoride (PVDF) core layer and a cellulose acetate (CA) sheath layer, which provide mechanical stability and hydrophilicity, respectively. The CA sheath layer aims to cover the hydrophobic core layer and improve its hydrophilicity. The TFC FO membrane with coaxial electrospun CA/PVDF support layer not only showed high improvement in water flux due to improved hydrophilicity, but also exhibited comparable mechanical strength with pure PVDF nanofiber support. After FO operation using 0.5 M NaCl as draw solution and deionized water as feed solution, the coaxial electrospun CA/PVDF composite based TFC-FO membrane achieved the following: water flux of 31.2 L m(-2)h(-1), remarkably lower specific reverse salt flux of 0.03 g L-1, and low structural parameter of 190 mu m. Coaxial electrospinning is therefore a promising approach to fabricate high performance FO membrane whose support exhibits high porosity, mechanical stability, and hydrophilicity.
机翻摘要
暂无翻译结果,您可以尝试点击头部的翻译按钮。
关键词/主题词
Forward osmosis;Coaxial electrospinning;Nanofiber membrane;Thin-film composite;Desalination;
若您需要申请原文,请登录。

最新评论

暂无评论。

登录后可以发表评论

意见反馈
返回顶部