文献类型：期刊文献

英文题名：Preparation of super-hydrophilic polyphenylsulfone nanofiber membranes for water treatment

作者：Wang, Yan[1,2];Gorecki, Radoslaw Pawel[3,4];Stamate, Eugen[5];Norrman, Kion[5];Aili, David[3];Zuo, Min[6];Guo, Weihong[1];Helix-Nielsen, Claus[3];Zhang, Wenjing[5]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Preparat & Applicat Ultrafine Mat, Polymer Proc Lab,Minist Educ, Shanghai, Peoples R China;[2]Huaihai Inst Technol, Dept Chem Engn, Lianyungang, Peoples R China;[3]Tech Univ Denmark, Dept Environm Engn, Miljovej 113, DK-2800 Lyngby, Denmark;[4]Aquaporin AS, Nymollevej 78, DK-2800 Lyngby, Denmark;[5]Tech Univ Denmark, Dept Energy Convers & Storage, Elektrovej 375, DK-2800 Lyngby, Denmark;[6]Zhejiang Univ, Dept Polymer Sci & Engn, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou, Zhejiang, Peoples R China

年份：2019

卷号：9

期号：1

起止页码：278

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20190306372685);WOS:【SCI-EXPANDED(收录号:WOS:000455485600035)】；

基金：The authors sincerely acknowledge H. C. Orsted Postdoc Fellowship and Innovation Fund Denmark via the MEMENTO project. Dr Ing. Philippe Martin and Emanuele Di Nicolo at Solvay Specialty Polymers are sincerely acknowledged for providing PPSU polymers. Drs Krzysztof Trzaskus and Jorg Vogel, Aquaporin A/S, provided valuable support to the project.

语种：英文

外文关键词：Osmosis - Nanofibers - Water treatment - Composite membranes - Film preparation - Biomimetics - Plasma applications

摘要：Electrospun nanofiber membrane-supported thin film composite (TFC) membranes exhibit great potential in water purification. In this work, electrospun polyphenylsulfone (PPSU) nanofiber membranes were prepared and modified by heat and plasma treatments. The resulting membranes were used as support layers for biomimetic TFC-based forward osmosis membranes. Thermal treatment transformed a loose non-woven nanofiber structure into a robust interconnected 3-dimensional PPSU network displaying a 930% increase in elastic modulus, 853% increase in maximum stress, and two-fold increase in breaking strain. Superior hydrophilicity of PPSU nanofiber membranes was achieved by low-pressure plasma treatment, changing the contact angle from 137 degrees to 0 degrees. The fabricated exemplary TFC-based forward osmosis membrane showed an osmotic water flux J(w) > 14 L m(-2) h(-1) with a very low reserve salt flux J(s) (J(s)/J(w) = 0.08 g L-1) demonstrating the potential for making high quality membranes for water treatment using PPSU-based support layers for TFC membranes.