Fabrication of an antifoulingGO‐TiO2/PESultrafiltration membrane

Wei Wang; Ya Ping Shi; Peng Zhang; Zhi Chao Zhang; Xin Xu

doi:10.1002/app.51165

journal article Jun 02, 2021

Fabrication of an antifoulingGO‐TiO2/PESultrafiltration membrane

Wei Wang

Ya Ping Shi Peng Zhang

Zhi Chao Zhang Xin Xu

Journal of Applied Polymer Science Vol. 138 No. 39 · Wiley

View at Publisher Save 10.1002/app.51165

Abstract

AbstractPES ultrafiltration membrane is widely used in various fields due to its high‐filtration efficiency. However, due to its hydrophobicity, PES ultrafiltration membrane has poor antifouling performance, this reduced service life and increased industrial cost. Blending is a common method in ultrafiltration membrane hydrophilic modification. Adding a small amount of inorganic nanoparticles into the polymer membrane can improve the properties of the polymer membrane. However, nanoparticles are not uniformly dispersed in polymer membrane, which hindering the modification ability of nanoparticles to ultrafiltration membrane. In this paper, GO‐TiO2materials were prepared by hydrothermal method, and GO‐TiO2/PES blended ultrafiltration membranes were fabricated by nonsolvent induced phase separation (NIPs). The experimental results show that GO‐TiO2disperse uniformly in GO‐TiO2/PES ultrafiltration membrane, which greatly improved the antifouling performance of the membrane. When the addition amount of GO‐TiO2is 0.6%, the water flux of membrane reaches 194.5 (L m−2 h−1), and the rejection rate of BSA reaches 89.4%. After three pollutions‐cycles, the flux recovery rate of the membrane is 90.2%.

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Published: Jun 02, 2021
Vol/Issue: 138(39)
License: View

Authors

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Wei Wang