1. Polyacrylamide-grafted magnetic reduced graphene oxide nanocomposite: preparation and adsorption properties
- Author
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Mohammad Kohestanian, Seyed Hassan Hosseini, Mojtaba Nazari, and Ali Pourjavadi
- Subjects
Nanocomposite ,Materials science ,Polymers and Plastics ,Polymer nanocomposite ,Graphene ,Polyacrylamide ,Oxide ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Methacrylate ,01 natural sciences ,0104 chemical sciences ,law.invention ,chemistry.chemical_compound ,Colloid and Surface Chemistry ,Adsorption ,Chemical engineering ,chemistry ,law ,Materials Chemistry ,Physical and Theoretical Chemistry ,In situ polymerization ,0210 nano-technology - Abstract
Magnetic reduced graphene oxide/polymer nanocomposites were prepared by in situ polymerization and grafting of polyacrylamide on the surface of functionalized magnetic reduced graphene oxide (rGO). Graphene oxide nanosheets were decorated with Fe3O4 nanoparticles, reduced and functionalized with 3-(trimethoxysilyl)propyl methacrylate, and then grafted with polyacrylamide. Grafting of polyacrylamide makes magnetic rGO hydrophilic and highly water dispersible. The prepared material was used as adsorbent for removal of an anionic dye, Congo red, and a maximum adsorption capacity up to 166.7 mg gā1 was obtained. The kinetics and isotherm of adsorption and the effect of experimental condition on adsorption capacity were also investigated.
- Published
- 2019
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