Modification of polysulfone ultrafiltration membranes with PVA and TiO2 for better antifouling

Mai Thanh Phong; Cao Xuan Thang; Phan Dinh Tuan

doi:10.15625/0866-708X/50/4/9521

Modification of polysulfone ultrafiltration membranes with PVA and TiO2 for better antifouling

Mai Thanh Phong, Cao Xuan Thang, Phan Dinh Tuan

Author affiliations

Authors

Mai Thanh Phong Faculty of Chemical Engineering, Hochiminh University of Technology, Ho Chi Minh, Viet Nam
Cao Xuan Thang Faculty of Chemical Engineering, Hochiminh University of Technology, Ho Chi Minh, Viet Nam
Phan Dinh Tuan Laboratory ofBioenergy andBiomassResearch, Hochiminh University of Technology268 Ly Thuong Kiet St., Dist. 10, HochiminhCity, Vietnam

DOI:

https://doi.org/10.15625/0866-708X/50/4/9521

Keywords:

ultrafiltration, fouling, polysulfone membrane, polyvinyl alcohol (PVA), titanium dioxide

Abstract

The objective of this study was to investigate anti-fouling property of modified polysulfone ultrafiltration (UF) membranes. Polysulfone UF membranes were modified by coating a thin film of polyvinyl alcohol (PVA), or a mixture of polyvinyl alcohol and titanium dioxide (TiO2) on surface. Effects of curing temperature on the coated membranes were also studied. The modified membranes were tested with 0.5 g/L sodium alginate solution and industrial dye wastewater. Curing temperature influenced remarkably flux and fouling property of the membranes. Among experiments studied, 85 oC was the best curing temperature. The PVA and PVA/TiO2-coated membranes reduced fouling significantly. Dispersion of TiO2 nanoparticles on membrane surface improved considerably bacteria removal of the membranes.

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Published

06-04-2017

How to Cite

[1]

M. Thanh Phong, C. Xuan Thang, and P. Dinh Tuan, “Modification of polysulfone ultrafiltration membranes with PVA and TiO2 for better antifouling”, Vietnam J. Sci. Technol., vol. 50, no. 4, pp. 497–505, Apr. 2017.

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Issue

Vol. 50 No. 4 (2012)

Section

Articles

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