ENHANCING HYDROPHILICITY OF POLYSULFONE MEMBRANE SURFACE BY UV IRRADIATION OF DIFFERENT WAVELENGTHS AND BY PEG GRAFTING

Authors

  • Soraya Ruangdit aFaculty of Science, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand, 90112 bCenter of Excellence in Membrane Science and Technology, Prince of Songkla University, Songkhla, Thailand, 90112
  • Suksawat Sirijaruku aFaculty of Science, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand, 90112 bCenter of Excellence in Membrane Science and Technology, Prince of Songkla University, Songkhla, Thailand, 90112
  • Thawat Chittrakarn aFaculty of Science, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand, 90112 bCenter of Excellence in Membrane Science and Technology, Prince of Songkla University, Songkhla, Thailand, 90112
  • Chaiporn Kaew-on Faculty of Science and Technology, Nakhon Si Thammarat Rajabhat University, Nakhon Si Thammarat, Thailand, 80280

DOI:

https://doi.org/10.11113/jurnalteknologi.v83.16384

Keywords:

UV treatment, PEG-grafting, Surface modification, hydrophilicity, polar component

Abstract

Polysulfone polymer (PSF) membrane has disadvantages due to its hydrophobicity, which may cause fouling and reduce separation performance. Therefore, this study aimed to enhance the hydrophilicity of PSF membranes by using irradiation at different ultraviolet (UV) wavelengths, followed by Poly(ethylene glycol) (PEG) grafting on the PSF surfaces. The hydrophilicity of the treated membrane surfaces was examined by measuring water contact angle (WCA), surface energy (SE), surface morphology, functional groups, salt rejection, and water flux in a filtration instrument. The results show that with long UV treatment for up to 72 h, the 312 nm wavelength gave lesser WCA than treatment at 254 nm. The treated PSF membrane irradiated at 312 nm for 72 h, followed by PEG grafting, was effectively improved and retained increased hydrophilicity for up to thirty days.

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Published

2021-06-07

How to Cite

Ruangdit, S. ., Sirijaruku, S., Chittrakarn, T. ., & Kaew-on, C. . (2021). ENHANCING HYDROPHILICITY OF POLYSULFONE MEMBRANE SURFACE BY UV IRRADIATION OF DIFFERENT WAVELENGTHS AND BY PEG GRAFTING. Jurnal Teknologi, 83(4), 111-117. https://doi.org/10.11113/jurnalteknologi.v83.16384

Issue

Section

Science and Engineering