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Updated: Sep 24, 2025
Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification
Published on: April 7, 2017
Preparation of super-hydrophilic polyphenylsulfone nanofiber membranes for water treatment
Yan Wang1,2, Radoslaw Pawel Górecki3,4, Eugen Stamate5
1Polymer Processing Laboratory, Key Laboratory for Preparation and Application of Ultrafine Materials of Ministry of Education, School of Material Science and Engineering, East China University of Science and Technology Shanghai People's Republic of China.
Abstract:
Electrospun nanofiber membrane-supported thin film composite (TFC) membranes exhibit great potential in water purification. In this work, electrospun polyphenylsulfone (PPSU) nanofiber membranes were prepared and modified by heat and plasma treatments. The resulting membranes were used as support layers for biomimetic TFC-based forward osmosis membranes. Thermal treatment transformed a loose non-woven nanofiber structure into a robust interconnected 3-dimensional PPSU network displaying a 930% increase in elastic modulus, 853% increase in maximum stress, and two-fold increase in breaking strain. Superior hydrophilicity of PPSU nanofiber membranes was achieved by low-pressure plasma treatment, changing the contact angle from 137° to 0°. The fabricated exemplary TFC-based forward osmosis membrane showed an osmotic water flux J w > 14 L m-2 h-1 with a very low reserve salt flux J s (J s/J w = 0.08 g L-1) demonstrating the potential for making high quality membranes for water treatment using PPSU-based support layers for TFC membranes.
