期刊
JOURNAL OF MATERIALS SCIENCE
卷 55, 期 23, 页码 9775-9786出版社
SPRINGER
DOI: 10.1007/s10853-020-04648-w
关键词
-
资金
- EU [POIR.04.01.04-00-0089/15]
In this paper, we present novel semi-permeable graphene-based membranes. Composite filters were designed and fabricated on polysulfone porous scaffolding using combinations of polycrystalline large-area High Strength Metallurgical Graphene (HSMG (R)), graphene oxide, hydrazine and an in-situ interfacial polymerized polyamide. The naturally occurring defects in HSMG (R) (which were tenths of a nanometer) were the clue in fabricating a filtering membrane. The performance of graphene membranes was evaluated in forward osmosis test. The prepared composites were proved to be semi-permeable membranes with great ions blocking efficiency (over 95%) and water flux only one order of magnitude lower than the commercial reverse osmosis membranes. The experiments' results demonstrated that the solutions proposed in this work indicate that graphene-based membranes can be used in water treatment technology.
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