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Issue 24, 2018
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Preparation of high permeable alumina ceramic membrane with good separation performance via UV curing technique

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Abstract

The traditional dip-coating method for preparation of ceramic membranes requires a long drying time and easily produces drying defects. In this work, an improved dip-coating process was proposed. The UV curing technique was utilized to avoid crack formation and agglomeration of ceramic particles, for drying to be completed in a few minutes. Photosensitive resin and a photoinitiator were added into the aqueous ceramic suspension. Under the action of free radicals excited by ultraviolet light, a giant network formed in the green membrane within a short time which limits the migration of membrane particles. Experiments were performed to explore the influence of UV curing process on membrane properties and the optimum preparation conditions were obtained. Following a rapid drying treatment and firing, crack-free membranes were prepared, which exhibited a narrow pore size distribution centered at approximately 65.2 nm and a water permeance of 887 ± 48 L m−2 h−1 bar−1. The largest pore size of the membrane was 85.7 nm while it could filter out 98.2% of the 100 nm monosize PS microsphere and the 60.1% of 60 nm, indicating its potential application in both membrane production efficiency and separation accuracy improvements.

Graphical abstract: Preparation of high permeable alumina ceramic membrane with good separation performance via UV curing technique

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Publication details

The article was received on 10 Dec 2017, accepted on 03 Apr 2018 and first published on 11 Apr 2018


Article type: Paper
DOI: 10.1039/C7RA13195J
RSC Adv., 2018,8, 13567-13577
  • Open access: Creative Commons BY license
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    Preparation of high permeable alumina ceramic membrane with good separation performance via UV curing technique

    Y. Liu, W. Zhu, K. Guan, C. Peng and J. Wu, RSC Adv., 2018, 8, 13567
    DOI: 10.1039/C7RA13195J

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