Enhanced hydrophilicity and antibacterial activity of PVDF ultrafiltration membrane using Ag3PO4/TiO2 nanocomposite against E. coli

Hong, Xiaoting, Zhou, Yumei, Ye, Zhuoliang, Zhuang, Haifeng, Liu, Wanpeng, Hui, K. S., Zeng, Zhi and Qiu, Xianhuan (2017) Enhanced hydrophilicity and antibacterial activity of PVDF ultrafiltration membrane using Ag3PO4/TiO2 nanocomposite against E. coli. Desalination and Water Treatment, 75. pp. 26-33. ISSN 1944-3994

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Abstract

Ag3PO4/TiO2, nanocomposite was fabricated by an in situ precipitation method and then blended into poly(vinylidene fluoride) (PVDF) casting solution to prepare the ultrafiltration membrane via wet phase inversion technique. The water flux and bovine serum albumin (BSA) rejection rate of membrane were investigated; meanwhile, the ultrafiltration membrane morphologies and structural properties were analyzed using scanning electron microscope (SEM) and X-ray diffraction. Compared with the control membrane, the permeate performance of blended membranes was improved while possessing a steady BSA retention due to enhanced hydrophilicity. Mechanical tests revealed that the modified membranes exhibited a larger tensile strength and breakage elongation. SEM images and the halo zone testing were employed to assess the antibacterial performances of the nanocomposite membranes against Escherichia coli. The antibacterial tests confirmed that the modified membranes showed an effective antibacterial property against E. coli.

Item Type: Article
Uncontrolled Keywords: phase inversion,pvdf ultrafiltration membrane,tio2 nanocomposite,hydrophilic and antibacterial
Faculty \ School: Faculty of Science > School of Mathematics
Depositing User: Pure Connector
Date Deposited: 16 Aug 2017 05:05
Last Modified: 01 Jul 2020 23:49
URI: https://ueaeprints.uea.ac.uk/id/eprint/64503
DOI: 10.5004/dwt.2017.20729

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