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Journal of Advanced Ceramics 2018, 7(2): 117-123 https://doi.org/10.1007/s40145-018-0263-7
Research Article | Open Access | Issue | Published: 05 March 2018

Preparation of high-efficiency ceramic planar membrane and its application for water desalination

Show Author's Information Shan TAOa,  Yan-Dong XUa,  Jian-Qiang GUb,  Hamidreza ABADIKHAHb,  Jun-Wei WANGb( ),  Xin XUb
Sinopec Northwest Oilfield Branch, Research Institute of Petroleum Engineering, Ürümqi 830001, China
CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
Keywords:
graphite, dual-layer phase inversion tape casting, full-inorganic hydrophobic membrane, membrane distillation
Cite this article:
TAO S, XU Y-D, GU J-Q, et al. Preparation of high-efficiency ceramic planar membrane and its application for water desalination. Journal of Advanced Ceramics, 2018, 7(2): 117-123. https://doi.org/10.1007/s40145-018-0263-7
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Abstract Full text About this article

Highly efficient Si3N4 ceramic planar membrane for water desalination process using membrane distillation was prepared by the dual-layer phase inversion tape casting and sintering method. In comparison with typical phase inversion tape casting method, the green tape was formed using Si3N4 slurry on the top and graphite slurry on the bottom. After consuming away the graphite structure, a ceramic membrane consisting of a two-layered structure (skin and finger-like layers) was obtained. The skin layer was relatively tight, and thus could act as a functional layer for separation, while the finger-like layer contained straight open pores with a diameter of 100 μm, acting as a support with low transport resistance. For comparison, typical Si3N4 ceramic membrane was fabricated by phase inversion technique without graphite substrate, resulting in a three-layered structure (skin, finger-like, and sponge layers). After membrane modification from hydrophilic to hydrophobic with polymer derived nanoparticle method, the water desalination performance of the membranes was tested using the sweeping gas membrane distillation (SGMD) with different NaCl feed solutions. With the increase of salt content from 4 to 12 wt%, the water flux decreased slightly while rejection rate maintained over 99.99%. Comparing with typical three-layered Si3N4 membrane, an excellent water flux enhancement of over 83% was resulted and the rejection rate remained over 99.99%.


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About this article

Preparation of high-efficiency ceramic planar membrane and its application for water desalination

Show Author's information Shan TAOa, Yan-Dong XUa, Jian-Qiang GUb, Hamidreza ABADIKHAHb, Jun-Wei WANGb( ), Xin XUb
Sinopec Northwest Oilfield Branch, Research Institute of Petroleum Engineering, Ürümqi 830001, China
CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China

Abstract

Highly efficient Si3N4 ceramic planar membrane for water desalination process using membrane distillation was prepared by the dual-layer phase inversion tape casting and sintering method. In comparison with typical phase inversion tape casting method, the green tape was formed using Si3N4 slurry on the top and graphite slurry on the bottom. After consuming away the graphite structure, a ceramic membrane consisting of a two-layered structure (skin and finger-like layers) was obtained. The skin layer was relatively tight, and thus could act as a functional layer for separation, while the finger-like layer contained straight open pores with a diameter of 100 μm, acting as a support with low transport resistance. For comparison, typical Si3N4 ceramic membrane was fabricated by phase inversion technique without graphite substrate, resulting in a three-layered structure (skin, finger-like, and sponge layers). After membrane modification from hydrophilic to hydrophobic with polymer derived nanoparticle method, the water desalination performance of the membranes was tested using the sweeping gas membrane distillation (SGMD) with different NaCl feed solutions. With the increase of salt content from 4 to 12 wt%, the water flux decreased slightly while rejection rate maintained over 99.99%. Comparing with typical three-layered Si3N4 membrane, an excellent water flux enhancement of over 83% was resulted and the rejection rate remained over 99.99%.

Keywords: graphite, dual-layer phase inversion tape casting, full-inorganic hydrophobic membrane, membrane distillation

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Publication history
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Publication history

Received: 07 November 2017
Revised: 26 January 2018
Accepted: 29 January 2018
Published: 05 March 2018
Issue date: June 2018

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© The author(s) 2018

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Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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