膜
生物污染
两亲性
化学工程
聚合物
苯胺
磁导率
材料科学
高分子化学
柠檬酸
化学
共聚物
有机化学
生物化学
工程类
作者
Jian Zhao,Peng Zhang,Lin Chen,Haoling Huo,Huaijun Lin,Qiwei Wang,Florian Vogel,Wei Li,Zhidan Lin
出处
期刊:Molecules
[MDPI AG]
日期:2023-02-17
卷期号:28 (4): 1936-1936
被引量:2
标识
DOI:10.3390/molecules28041936
摘要
Water treatment technology based on ultrafiltration (UF) faces the problem of severe membrane fouling due to its inherent hydrophobicity. The use of amphiphilic polymers that possess both hydrophobic and hydrophilic chain segments can be advantageous for the hydrophilic modification of UF membranes due to their excellent combination in the membrane matrix. In the present study, we examined a novel amphiphilic CA–g–AN material, constructed by grafting citric acid (CA) to aniline (AN), as a modified material to improve the hydrophilicity of a PES membrane. This material was more compatible with the polymer membrane matrix than a pure hydrophilic modified material. The polyethersulfone (PES) membranes modified by amphiphilic CA–g–AN demonstrated a higher water flux (290.13 L·m−2·h−1), which was more than eight times higher than that of the pure PES membrane. Furthermore, the flux recovery ratio (FRR) of the modified membrane could reach 83.24% and the value of the water contact angle (WCA) was 76.43°, demonstrating the enhanced hydrophilicity and antifouling ability of the modified membranes. With this study, we aimed to develop a new amphiphilic polymer to improve the antifouling property and permeability of polymer-based UF membranes to remove organic pollutants from water.
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