Improvement of Hydrophilicity for Polyamide Composite Membrane by Incorporation of Graphene Oxide-Titanium Dioxide Nanoparticles

Thu Hong Anh Ngo; Chau Thi Minh Nguyen; Khai Dinh Do; Quan Xuan Duong; Nghia Hieu Tran; Hoan Thi Vuong Nguyen; Dung Thi Tran

doi:10.1155/2020/6641225

Improvement of Hydrophilicity for Polyamide Composite Membrane by Incorporation of Graphene Oxide-Titanium Dioxide Nanoparticles

J Anal Methods Chem. 2020 Dec 30:2020:6641225. doi: 10.1155/2020/6641225. eCollection 2020.

Authors

Thu Hong Anh Ngo¹, Chau Thi Minh Nguyen¹, Khai Dinh Do¹, Quan Xuan Duong¹, Nghia Hieu Tran¹, Hoan Thi Vuong Nguyen², Dung Thi Tran¹

Affiliations

¹ Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, Vietnam.
² Faculty of Chemistry, Quy Nhon University, Quy Nhon, Vietnam.

Abstract

In this work, the polyamide (PA) membrane surface has been modified by coating of nanomaterials including graphene oxide (GO) and titanium dioxide (TiO₂) to enhance membrane separation and antifouling properties. The influence of surface modification conditions on membrane characteristics has been investigated and compared with a base membrane. Membrane surface properties were determined through scanning electron microscope (SEM) images and Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectroscopy. Membrane separation performance was determined through the possibility for the removal of methylene blue (MB) in water. Membrane antifouling property was evaluated by the maintained flux ratios (%) after 120 minutes of filtration. The experimental results showed that the appearance of hydrophilic groups after coating of GO and TiO₂ nanocomposite materials with or without UV irradiation onto membrane surface made an improvement in the separation property of the coated membranes. The membrane flux increased from 28% to 61%; meanwhile, the antifouling property of the coated membranes was improved clearly, especially for UV-irradiated PA/GO-TiO₂ membrane.