Grafting of diallyldimethylammonium chloride on graphene oxide by RAFT polymerization for modification of nanocomposite polysulfone membranes using in water treatment

Date

2017-02-01

Author

Ghasemıkouchameshgı, Mahmoud
Marjani, Azam
Mahmoudian, Mehdi
Farhadi, Khalil

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In this study, functionalized grapheme oxide (GO) was utilized as an additive for the preparation of nanocomposite membrane. For growing the polymer chains on the graphene oxide surface, the control living radical polymerization (reversible addition fragmentation chain transfer polymerization (RAFT) technique), was applied. The RAFT agent, O-ethyl xanthate was grafted on the grapheme oxide surface and then the chains of PDADMAC grew from modified sites. GO-PDADMAC was investigated by FTIR, HNMR, FESEM, TGA and DSC techniques. The effect of GO-PDADMAC on the morphology and surface property of the polysulfone (PSf) membranes was examined using scanning electron microscopy (FESEM) and atomic force microscopy (AFM). The contact angle (CA), pure water flux (PWF) and antifouling properties of modified membranes were also used to investigate the membranes performance. The results suggested that the water flux of membrane increased to 443.22 L m(-2)h(-1) which related to 7 wt% GO-PDADMAC/20% PSf membrane as well as the highest rejection for different heavy metals, namely Cu2+ (86.68%), and Cd2+ (88.68%) assigned to 5 wt% GO-PDADMAC/20% PSf and 3 wt% GO-PDADMAC/23% PSf, membranes, respectively. (C) 2016 Published by Elsevier B.V.

Subject Keywords

Diallyldimethylammonium chloride, Polysulfone membrane, RAFT polymerization, Graphene oxide

URI

https://hdl.handle.net/11511/90426

Journal

CHEMICAL ENGINEERING JOURNAL

DOI

https://doi.org/10.1016/j.cej.2016.10.008

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

M. Ghasemıkouchameshgı, A. Marjani, M. Mahmoudian, and K. Farhadi, “Grafting of diallyldimethylammonium chloride on graphene oxide by RAFT polymerization for modification of nanocomposite polysulfone membranes using in water treatment,” CHEMICAL ENGINEERING JOURNAL, pp. 206–221, 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/90426.