Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly
Silica gel (SG)–polyacrylonitrile (PAN) composite forward osmosis (FO) membranes have been synthesized and characterized in the present work. The incorporation of SG particles into the PAN support layer significantly changed its water permeability and salt rejection rate. In the range of 0.25–1.0 wt...
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sg-ntu-dr.10356-1031372020-06-01T10:26:36Z Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly Lee, Jian-Yuan Qi, Saren Liu, Xin Li, Ye Huo, Fengwei Tang, Chuyang Y. School of Civil and Environmental Engineering School of Materials Science & Engineering Nanyang Environment and Water Research Institute Singapore Membrane Technology Centre DRNTU::Engineering::Chemical engineering::Processes and operations Silica gel (SG)–polyacrylonitrile (PAN) composite forward osmosis (FO) membranes have been synthesized and characterized in the present work. The incorporation of SG particles into the PAN support layer significantly changed its water permeability and salt rejection rate. In the range of 0.25–1.0 wt.% SG loading, water permeability of membranes were enhanced after the embedment of SG, most likely due to the both porous nature of SG and the enhanced substrate porosity. However, a reduction in both water permeability and salt rejection was observed if further increase in SG loading (2.0 wt.%), possibly as a result of the agglomeration of SG. The most permeable SG–PAN FO membrane (M1.00, with 1.0 wt.% SG loading) had a significantly higher water permeability compared to the control pure PAN FO membrane (M0.00). This membrane achieved high FO water fluxes of >100 L/m2 h was achieved by using the 1 M MgCl2 as the draw solution (DS) and 0–10 mM NaCl as the feed solution (FS). To the best knowledge of the authors, this is the first study reporting the development and application of SG–PAN mixed matrix FO membranes (MMMs) based on layer-by-layer assembly. 2014-12-15T03:23:15Z 2019-12-06T21:06:22Z 2014-12-15T03:23:15Z 2019-12-06T21:06:22Z 2014 2014 Journal Article Lee, J.-Y., Qi, S., Liu, X., Li, Y., Huo, F., & Tang, C. Y. (2014). Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly. Separation and purification technology, 124, 207-216. 1383-5866 https://hdl.handle.net/10356/103137 http://hdl.handle.net/10220/24454 10.1016/j.seppur.2014.01.029 en Separation and purification technology © 2014 Elsevier B.V. |
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DRNTU::Engineering::Chemical engineering::Processes and operations Lee, Jian-Yuan Qi, Saren Liu, Xin Li, Ye Huo, Fengwei Tang, Chuyang Y. Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly |
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Silica gel (SG)–polyacrylonitrile (PAN) composite forward osmosis (FO) membranes have been synthesized and characterized in the present work. The incorporation of SG particles into the PAN support layer significantly changed its water permeability and salt rejection rate. In the range of 0.25–1.0 wt.% SG loading, water permeability of membranes were enhanced after the embedment of SG, most likely due to the both porous nature of SG and the enhanced substrate porosity. However, a reduction in both water permeability and salt rejection was observed if further increase in SG loading (2.0 wt.%), possibly as a result of the agglomeration of SG. The most permeable SG–PAN FO membrane (M1.00, with 1.0 wt.% SG loading) had a significantly higher water permeability compared to the control pure PAN FO membrane (M0.00). This membrane achieved high FO water fluxes of >100 L/m2 h was achieved by using the 1 M MgCl2 as the draw solution (DS) and 0–10 mM NaCl as the feed solution (FS). To the best knowledge of the authors, this is the first study reporting the development and application of SG–PAN mixed matrix FO membranes (MMMs) based on layer-by-layer assembly. |
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School of Civil and Environmental Engineering |
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School of Civil and Environmental Engineering Lee, Jian-Yuan Qi, Saren Liu, Xin Li, Ye Huo, Fengwei Tang, Chuyang Y. |
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Article |
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Lee, Jian-Yuan Qi, Saren Liu, Xin Li, Ye Huo, Fengwei Tang, Chuyang Y. |
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Lee, Jian-Yuan |
title |
Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly |
title_short |
Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly |
title_full |
Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly |
title_fullStr |
Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly |
title_full_unstemmed |
Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly |
title_sort |
synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly |
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2014 |
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https://hdl.handle.net/10356/103137 http://hdl.handle.net/10220/24454 |
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