Enhanced Anti-Wetting Methods of Hydrophobic Membrane for Membrane Distillation

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Abstract

Increasing issues of hydrophobic membrane wetting occur in the membrane distillation (MD) process, stimulating the research on enhanced anti-wetting methods for membrane materials. In recent years, surface structural construction (i.e., constructing reentrant-like structures), surface chemical modification (i.e., coating organofluorides), and their combination have significantly improved the anti-wetting properties of the hydrophobic membranes. Besides, these methods change the MD performance (i.e., increased/decreased vapor flux and increased salt rejection). This review first introduces the characterization parameters of wettability and the fundamental principles of membrane surface wetting. Then it summarizes the enhanced anti-wetting methods, the related principles, and most importantly, the anti-wetting properties of the resultant membranes. Next, the MD performance of hydrophobic membranes prepared by different enhanced anti-wetting methods is discussed in desalinating different feeds. Finally, facile and reproducible strategies are aspired for the robust MD membrane in the future.

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APA

Zhang, H., & Zhao, X. (2023, August 15). Enhanced Anti-Wetting Methods of Hydrophobic Membrane for Membrane Distillation. Advanced Science. John Wiley and Sons Inc. https://doi.org/10.1002/advs.202300598

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