Construction of nonfouling nanofiltration membrane via introducing uniformly tunable zwitterionic layer 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Journal of Membrane Science
年/卷/期
2019 / 583 /
页码
152-162
ISSN号
0376-7388
作者单位
Zhejiang Univ, Dept Polymer Sci & Engn, Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China;Zhejiang Univ, Dept Polymer Sci & Engn, Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China;Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China;Zhejiang Sci Tech Univ, Minist Educ, Key Lab Adv Text Mat & Mfg Technol & Engn Res, Ctr Ecodyeing & Finishing Text, Hangzhou 310018, Zhejiang, Peoples R China;Zhejiang Univ, Dept Polymer Sci & Engn, Lab Macromol Synth & Functionalizat, Hangzhou 310027, Zhejiang, Peoples R China;Zhejiang Univ Technol, Ocean Coll, Ctr Membrane & Water Sci & Technol, Hangzhou 310014, Zhejiang, Peoples R China;Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China;Zhejiang Univ Technol, Ocean Coll, Ctr Membrane & Water Sci & Technol, Hangzhou 310014, Zhejiang, Peoples R China;
作者
Guo, Yao-Shen;Weng, Xiao-Dan;Wu, Bin;Mi, Yi-Fang;Zhu, Bao-Ku;Ji, Yan-Li;An, Quan-Fu;Gao, Cong-Jie;
摘要
Surface-initiated atom transfer radical polymerization (SI-ATRP) can precisely control the graft length and graft density of polymers. In this work, nonfouling nanofiltration membrane with tunable zwitterionic layer was fabricated by grafting sulfobetaine methacrylate (SBMA) on the surface of 2-bromoisobutyryl bromide (BIBB)-immobilized polyamide membranes (PA-Brs) via SI-ATRP. Zwitterionic layer with different graft length and graft density can be adjusted by varying the BIBB concentration or ATRP time, which can thus tune water flux and antifouling property of the membranes. When BIBB concentration is 1.00 wt% and ATRP time is 0.2 h, the optimal flux is 63.9 Lm(-2) h(-1). In addition, the amount of foulant adsorbed on membrane is less than 20 mu g cm(-2). Flux decline ratio is about 5% and flux recovery ratio is more than 98% when humic acid is used for dynamic test, suggesting a nonfouling performance of zwitterionic membrane with SBMA graft content above 26 mol%.
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
Tunable zwitterionic layer;Surface-initiated atom transfer radical;polymerization;Graft length;Graft density;Nonfouling;
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