A Drying-Free, Water-Based Process for Fabricating Mixed-Matrix Membranes with Outstanding Pervaporation Performance

Yu Heng Deng, Jung Tsai Chen, Chia Hao Chang, Kuo Sung Liao, Kuo Lun Tung, William E. Price, Yusuke Yamauchi, Kevin C.W. Wu

研究成果: 雜誌貢獻文章同行評審

82 引文 斯高帕斯(Scopus)

摘要

Despite much progress in the development of mixed matrix membranes (MMMs) for many advanced applications, the synthesis of MMMs without particle agglomeration or phase separation at high nanofiller loadings is still challenging. In this work, we synthesized nanoporous zeolitic imidazole framework (ZIF-8) nanoparticles with a particle size of 60 nm and a pore size of 0.34 nm in water and directly added them into an aqueous solution of the organic polymer poly(vinyl alcohol) (PVA) without an intermediate drying process. This approach led to a high-quality PVA/ZIF-8 MMM with enhanced performance in ethanol dehydration by pervaporation. The permeability of this MMM is three times higher than that of pristine PVA, and the separation factor is nearly nine times larger than that of pristine PVA. The significantly improved separation performance was attributed to the increase in the fractional free volume in the membranes.
原文英語
頁(從 - 到)12793-12796
頁數4
期刊Angewandte Chemie - International Edition
55
發行號41
DOIs
出版狀態已發佈 - 一月 1 2016
對外發佈Yes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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