Fabrication, optimization, and performance of a novel double-skinned Al2O3.TiO2 ceramic nanocomposite membrane for forward osmosis application
作者： Mohammad Mahdi Zerafat , Ayoub Karimi-Jashni , Solmaz Saadat , Fatemeh Azadi
DOI: 10.1016/J.ETI.2021.101423
关键词:
摘要: Abstract In this study, a thin film nanocomposite ceramic membrane with an Al2O3 substrate and TiO2 as the active layer was fabricated via dip coating technique optimized for application in FO purification of groundwater. The effect parameters including sol aging, calcination temperature, time investigated. Based on results, least water flux obtained during 6 h after preparation. Furthermore, boosting synthesis temperature led to reduction. According optimization 6.75 h 17.00 s 319 °C maximal 168 L/m2 bar 48% salt rejection. addition, by covering 10 layers TiO2, reduced 10.82 bar. process using MgCl2 solution (2 M) draw DI feed solutions, resulted initial 17.04 L.m−2 h−1 (LMH). Replacing 0.01 M NaCl feed, decreased 15.5 LMH. Also, groundwater EC 1407, 14.1 LMH obtained.
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