Characterization of Polysulfone/TiO₂ Composite Membrane Modified by Plasma

Abstract:

In order to enhance the surface anti-fouling property of separation membrane, TiO2/polysulfone (PSF) membrane was prepared by the phase inversion method, and the surface was treated by oxygen plasma to obtain a composite membrane with photo catalysis activity. To evaluate the effect of oxygen plasma on the surface modification, positron annihilation γ-ray spectroscopy coupled with a positron beam was utilized to probe the surface feature, while the catalysis evaluation system was employed to study the anti-fouling activity of the membrane. The results indicate that with increasing plasma treatment time, the membrane exhibits higher S parameter in the lower energies, while the photo catalysis activity is strengthened. It can be concluded that plasma technique can improve the photo catalysis activity of the composite membrane.

• Periodical: Defect and Diffusion Forum (Volume 373)
• Pages: 257-260
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.373.257
• Online since: March 2017
• Authors: Zhe Chen*, C. Yin, S. Wang, Kenji Ito, Q.M. Fu, Q.R. Deng, Z.D. Lin, P. Fu, Y. Zhang, Z.T. Liu
• Keywords: Composite Membrane, Membrane Fouling, Photo Catalysis, Plasma Treatment, Positron

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