Facile Fabrication of Janus Membranes with Antifouling Properties for Membrane Distillation
Source abstract
Abstract
An antifouling Janus membrane for membrane distillation (MD) was fabricated via a facile photoinitiated chemical vapor deposition process. The hydrophilic polymer poly(2-hydroxyethyl methacrylate) (pHEMA) was selectively deposited on one side of the polytetrafluoroethylene membrane, while the other retained its hydrophobicity. The fabricated Janus membrane exhibited an overall maintained porous structure, owing to the advantages of vapor-phase polymer deposition; however, the asymmetric deposition of hydrophilic pHEMA on a single side of the membrane induced different properties on each side. The Janus properties were identified by using chemical analyses and contact angle measurements. The Janus membranes showed no significant differences in MD performance with a saline water feed compared with the pristine membrane. Moreover, in the MD test of the oil emulsion in saline water, the Janus membrane exhibited superior oil antifouling properties, whereas the pristine membrane was immediately fouled. Furthermore, the stability of the pHEMA-coated Janus membrane after MD testing was confirmed.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Membrane Separation Technologies · Electrohydrodynamics and Fluid Dynamics · Solar-Powered Water Purification Methods
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Gajeong-ro 141, Yuseong, Daejeon 34114, South Korea
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daehak-ro 291, Yuseong, Daejeon 34141, South Korea
Brain Science Institute, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk, Seoul 02792, South Korea
Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk, Seoul 02792, South Korea
Department of Advanced Materials and Chemical Engineering, University of Science and Technology, Gajeong-ro 217, Yuseong, Daejeon 34113, South Korea
Funding
Ministry of Science and ICT, South Korea · National Research Foundation of Korea · Korea Institute of Energy Technology Evaluation and Planning · Korea Institute of Science and Technology
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