Graphene Oxide Incorporated Forward Osmosis Membranes With Enhanced Desalination Performance and Chlorine Resistance

In this work, grapheme oxide (GO) nano-sheets were synthesized and dispersed in the aqueous phase for the interfacial polymerization (IP) process to develop a new type of thin-film composite (TFC) membranes for forward osmosis (FO) applications. The effects of the GO concentrations on the membrane s...

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Published inFrontiers in chemistry Vol. 7; p. 877
Main Authors Li, Zhanguo, Wang, Yi, Han, Mengwei, Wang, Dayong, Han, Shitong, Liu, Zequn, Zhou, Ningyu, Shang, Ran, Xie, Chaoxin
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 10.01.2020
Subjects
Chemistry
chlorine resistance
desalination performance
forward osmosis
GO nano-sheets
thin-film composite membrane
forward osmosis
desalination performance
thin-film composite membrane
GO nano-sheets
chlorine resistance
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Summary:In this work, grapheme oxide (GO) nano-sheets were synthesized and dispersed in the aqueous phase for the interfacial polymerization (IP) process to develop a new type of thin-film composite (TFC) membranes for forward osmosis (FO) applications. The effects of the GO concentrations on the membrane surfaces and cross-sectional morphologies and FO desalination performances of the as-prepared TFC membranes were investigated systematically. Compared with the control membrane, the optimal GO-incorporated TFC membrane displayed higher water flux, less specific reverse solute flux (SRSF) and lower structure parameter. Moreover, the optimized membrane showed 75.0 times higher chlorine resistance than the control membrane. In general, these new type of membranes could be an effective strategy to fabricate high-performance FO membranes with good desalination performance and chlorine resistance.
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Edited by: Liguo Shen, Zhejiang Normal University, China
Reviewed by: Peng Lu, Ningbo University, China; Xiu Wen Cheng, Lanzhou University, China
This article was submitted to Green and Sustainable Chemistry, a section of the journal Frontiers in Chemistry
ISSN:2296-2646
2296-2646
DOI:10.3389/fchem.2019.00877