用于超滤应用的含氧化石墨烯-氧化钨的平板聚砜膜增强型防污性能

Enhanced Antifouling in Flat-Sheet Polyphenylsulfone Membranes Incorporating Graphene Oxide-Tungsten Oxide for Ultrafiltration Applications.

作者信息

Al-Maliki Raghad M, Alsalhy Qusay F, Al-Jubouri Sama, AbdulRazak Adnan A, Shehab Mohammed Ahmed, Németh Zoltán, Hernadi Klara, Majdi Hasan Sh

机构信息

Membrane Technology Research Unit, Department of Chemical Engineering, University of Technology-Iraq, Alsinaa Street 52, Baghdad 10066, Iraq.

Department of Chemical Engineering, College of Engineering, University of Baghdad, Aljadria, Baghdad 10071, Iraq.

出版信息

Membranes (Basel). 2023 Feb 24;13(3):269. doi: 10.3390/membranes13030269.

DOI:10.3390/membranes13030269

PMID:36984656

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10056496/

Abstract

In this study tungsten oxide and graphene oxide (GO-WO) were successfully combined using the ultra-sonication method and embedded with polyphenylsulfone (PPSU) to prepare novel low-fouling membranes for ultrafiltration applications. The properties of the modified membranes and performance were investigated using Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), contact angle (CA), water permeation flux, and bovine serum albumin (BSA) rejection. It was found that the modified PPSU membrane fabricated from 0.1 wt.% of GO-WO possessed the best characteristics, with a 40.82° contact angle and 92.94% porosity. The permeation flux of the best membrane was the highest. The pure water permeation flux of the best membrane showcased 636.01 L·m·h with 82.86% BSA rejection. Moreover, the membranes (MR-2 and MR-P2) manifested a higher flux recovery ratio (FRR %) of 92.66 and 87.06%, respectively, and were less prone to BSA solution fouling. The antibacterial performance of the GO-WO composite was very positive with three different concentrations, observed via the bacteria count method. These results significantly overtake those observed by neat PPSU membranes and offer a promising potential of GO-WO on activity membrane performance.

摘要

在本研究中，采用超声法成功地将氧化钨和氧化石墨烯（GO-WO）结合，并与聚亚苯基砜（PPSU）复合，制备了用于超滤应用的新型低污染膜。使用傅里叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）、接触角（CA）、水渗透通量和牛血清白蛋白（BSA）截留率对改性膜的性能和性能进行了研究。结果发现，由0.1 wt.%的GO-WO制备的改性PPSU膜具有最佳特性，接触角为40.82°，孔隙率为92.94%。最佳膜的渗透通量最高。最佳膜的纯水渗透通量为636.01 L·m·h，BSA截留率为82.86%。此外，膜（MR-2和MR-P2）的通量恢复率（FRR%）分别更高，为92.66和87.06%，并且不易受到BSA溶液污染。通过细菌计数法观察到，GO-WO复合材料在三种不同浓度下的抗菌性能非常良好。这些结果明显优于纯PPSU膜的结果，并显示出GO-WO在活性膜性能方面具有广阔的应用前景。