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通过电晕空气等离子体辅助接枝HB-PEG对聚醚砜（PES）膜进行表面改性以分离水包油乳液。

Surface modification of a PES membrane by corona air plasma-assisted grafting of HB-PEG for separation of oil-in-water emulsions.

作者信息

Adib Hooman, Raisi Ahmadreza

机构信息

Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic) Hafez Ave., P.O. Box 15875-4413 Tehran Iran

出版信息

RSC Adv. 2020 May 1;10(29):17143-17153. doi: 10.1039/d0ra02032j. eCollection 2020 Apr 29.

DOI:10.1039/d0ra02032j
PMID:35521445
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9053405/
Abstract

The main goal of this study is to modify a polyethersulfone (PES) membrane by grafting with hyperbranched polyethylene glycol (HB-PEG) using corona air plasma to intensify the anti-fouling properties of the prepared membrane. The separation efficiency and fouling tendency of the modified membranes were evaluated for the treatment of a synthetic oily wastewater. A mechanism was proposed for the HB-PEG grafting on the surface of the corona treated PES membranes and all steps of the grafting were described in detail. The effects of corona treatment operating conditions on the morphology, surface properties, separation performance and anti-fouling efficiency of the modified PES membranes were investigated. Also, the HB-PEG grafted PES membranes were characterized by FTIR, AFM and contact angle analysis. Finally, the HB-PEG grafting on the surface of the PES membranes altered the surface hydrophilicity and led to the improvement of the anti-fouling property and oil-water permeation flux of all modified membranes without any remarkable changes in oil rejection.

摘要

本研究的主要目标是通过使用电晕空气等离子体将超支化聚乙二醇（HB-PEG）接枝到聚醚砜（PES）膜上，以增强所制备膜的抗污染性能。对改性膜处理合成含油废水的分离效率和污染倾向进行了评估。提出了HB-PEG在电晕处理的PES膜表面接枝的机理，并详细描述了接枝的所有步骤。研究了电晕处理操作条件对改性PES膜的形态、表面性质、分离性能和抗污染效率的影响。此外，通过傅里叶变换红外光谱（FTIR）、原子力显微镜（AFM）和接触角分析对HB-PEG接枝的PES膜进行了表征。最后，PES膜表面的HB-PEG接枝改变了表面亲水性，提高了所有改性膜的抗污染性能和油水渗透通量，而截留率没有任何显著变化。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fec8/9053405/4bc93f0bdccd/d0ra02032j-f10.jpg
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