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

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

89
views

0
downloads

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

Suggestions

OpenMETU
Core

Development of polybenzimidazole/graphene oxide composite membranes for high temperature PEM fuel cells Uregen, Nurhan; Pehlivanoglu, Kubra; Ozdemir, Yagmur; DEVRİM, YILSER (2017-01-26) In this study, phosphoric acid doped Polybenzimidazole/Graphene Oxide (PBI/GO) nano composite membranes were prepared by dispersion of various amounts of GO in PBI polymer matrix followed by phosphoric acid doping for high temperature proton exchange membrane fuel cell (HT-PEMFC) application. The structure of the PBI/GO composite membranes was investigated by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and by thermogravimetric analysis (TGA). The introduction of GO into the FBI polymer matri...
PERMEABILITY OF PHEMA MEMBRANES PREPARED BY PHOTOINITIATION ARICA, MY; Hasırcı, Vasıf Nejat (1993-01-01) Poly(2-hydroxyethyl methacrylate) membranes were prepared in aqueous media with different ions and ionic strengths. The enzyme glucose oxidase was incorporated into some of these membranes. It was found that membrane water contents and ionic strengths have a linear relationship as long as the salt is not changed. When the salt was varied, only a relationship between salt concentration and water content could be observed. The membrane permeabilities were all found to be of the same order (10(-8) cm2 s-1) but...
Synthesis of FeTi from mixed oxide precursors Tan, Serdar; Oers, Taylan; Aydınol, Mehmet Kadri; Öztürk, Tayfur; Karakaya, İshak (2009-05-05) A study was carried out on the synthesis of FeTi intermetallics from mixed oxide precursors using the method of electro-deoxidation. Fe2O3 and TiO2 mixed in molar proportions of 1:2 were sintered at temperatures ranging from 900 degrees C to 1300 degrees C. The sintered pellet of mixed oxides, connected as cathode, was then electrolyzed in a molten CaCl2 at 900 degrees C using a graphite anode at a potential of 3.2 V. The electrolysis yielded the target composition FeTi in substantial amounts only when the ...
Synthesis and characterization of aluminoborophosphate compounds by hydrothermal and solid-state methods Karabıçak, Seher; Kızılyallı, Meral; Department of Chemistry (2004) The hydrothermal and solid state methods were used in the synthesis of some aluminoborophosphate compounds. The products were investigated by using XRD, IR, DTA, DSC, ICP and SEM methods. The solid state reactions have been studied in the range 700 ا 1200?C. Using several hydrothermal methods a novel aluminum phosphate compound Al3-xBxP3O12 was synthesized. The crystal system was found to be tetragonal with a=17.1629 and c = 12.6084A° unit cell parameters and space group is P4212 (No:90). In anorthite miner...
Modification of graphene oxide by ATRP: A pH-responsive additive in membrane for separation of salts, dyes and heavy metals Mahmoudian, Mehdi; Ghasemıkouchameshgı, Mahmoud; Hosseinzadeh, Mohammadtaghi (2018-04-01) Incorporation of hydrophilic multifunctional compounds in to the polymeric membrane's matrix is one of the useful methods for modification of mixed matrix membranes. Therefore, in this study, preparation and properties of polyethersulfone (PES) mixed matrix membranes with hydrolyzed polymethylmethacrylate (PMMA(hyd)) grafted on graphene oxide (GO-PMMA(hyd)) is investigated as an effective additive to improve permeability and antifouling properties. In this respect, grafting of PMMA(hyd) on the GO surface is...

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.