Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/103137
Title: Synthesis and characterization of silica gel-polyacrylonitrile mixed matrix forward osmosis membranes based on layer-by-layer assembly
Authors: Lee, Jian-Yuan
Qi, Saren
Liu, Xin
Li, Ye
Huo, Fengwei
Tang, Chuyang Y.
Keywords: DRNTU::Engineering::Chemical engineering::Processes and operations
Issue Date: 2014
Source: 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.
Series/Report no.: Separation and purification technology
Abstract: 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.
URI: https://hdl.handle.net/10356/103137
http://hdl.handle.net/10220/24454
ISSN: 1383-5866
DOI: 10.1016/j.seppur.2014.01.029
Rights: © 2014 Elsevier B.V.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles
MSE Journal Articles
NEWRI Journal Articles

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.