Electrostatic enhanced surface segregation approach to self-cleaning and antifouling membranes for efficient molecular separation
文献类型：期刊论文
| 作者 | Long, Mengying; Yang, Chao; You, Xinda; Zhang, Runnan; Yuan, Jinqiu; Guan, Jingyuan; Zhang, Shiyu; Wu, Hong; Khan, Niaz Ali; Kasher, Roni |
| 刊名 | JOURNAL OF MEMBRANE SCIENCE
 |
| 出版日期 | 2021 |
| 卷号 | 638 |
| 关键词 | WATER PERFORMANCE BEHAVIOR STEP |
| 英文摘要 | Membranes with excellent antifouling properties and persistent high permeance are eternal pursuits in membrane technology. Herein, we proposed an electrostatic enhanced surface segregation approach toward the antifouling and self-cleaning membranes for molecular separation. A copolymer containing quaternary ammonium (QA) segments was designed as the surface segregation agent in the casting solution, while polysulphonic acid (PSA) was designed as the crosslinking agent in the coagulation bath. Driven by the electrostatic interactions between the positively charged QA and negatively charged sulphonic groups, the copolymer and PSA were in-situ assembled during the non-solvent induced phase separation (NIPS) processes, generating a selective separation layer on the polymeric matrix. The segregation of copolymer was enhanced, leading to a high surface coverage of ionic QA and sulphonic groups and a significantly improved surface hydrophilicity. Accordingly, the membrane exhibited a high water permeance up to 124 Lm(-2) h(-1) bar(-1) with dye rejection over 95%. Moreover, the membrane exhibited excellent antifouling performance with the ultralow total permeance decline of 1.2% and the ultrahigh permeance recovery ratio of 99.8% against emulsified oil, as well as the self-cleaning property against crude oil. Hopefully, this study can afford a novel and generic approach to antifouling and self-cleaning membranes for diverse separations. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21314]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | 1.Zhang, RN (corresponding author), Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China. 2.Jiang, ZY (corresponding author), Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Long, Mengying,Yang, Chao,You, Xinda,et al. Electrostatic enhanced surface segregation approach to self-cleaning and antifouling membranes for efficient molecular separation[J]. JOURNAL OF MEMBRANE SCIENCE,2021,638. |
| APA | Long, Mengying.,Yang, Chao.,You, Xinda.,Zhang, Runnan.,Yuan, Jinqiu.,...&Jiang, Zhongyi.(2021).Electrostatic enhanced surface segregation approach to self-cleaning and antifouling membranes for efficient molecular separation.JOURNAL OF MEMBRANE SCIENCE,638. |
| MLA | Long, Mengying,et al."Electrostatic enhanced surface segregation approach to self-cleaning and antifouling membranes for efficient molecular separation".JOURNAL OF MEMBRANE SCIENCE 638(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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