Open Access
ARTICLE
Development of Magnetite/Graphene Oxide Hydrogels from Agricultural Wastes for Water Treatment
Hebat-Allah S. Tohamy, Mohamed El-Sakhawy, Samir Kamel*
Cellulose and Paper Department, National Research Centre, Cairo, 12622, Egypt
* Corresponding Author: Samir Kamel. Email:
Journal of Renewable Materials 2022, 10(7), 1889-1909. https://doi.org/ 10.32604/jrm.2022.019211
Received 09 September 2021; Accepted 07 December 2021; Issue published 08 March 2022
Abstract
A novel magnetic hydrogel loaded with graphene oxide (GO) was developed in this study. Firstly, GO was prepared from bagasse through a single step via oxidation in the presence of ferrocene under muffled atmospheric
conditions, followed by the loading of different amounts of magnetite onto GO via co-precipitation reaction of
iron onto GO sheets. Finally, the 2-acrylamido-2-methyl-1-propane sulfonic acid was grafted onto carboxymethyl
cellulose in the presence of magnetite GO and N, N′-methylenebisacrylamide as crosslinker yielded hydrogel. The
structure, morphological, and thermal behavior of the prepared hydrogels were investigated. In addition, the
adsorption performance of Ni(II) ions from aqueous media by the prepared hydrogels was investigated as a function of temperature, time, and concentration of adsorbate in a batch system. The results demonstrated a remarkable enhancement in the adsorption process of Ni(II) (Removal efficiency = 98.82%). All isotherms were found to
fit the Langmuir model best. The adsorption properties of both magnetic GO and magnetic hydrogel showed
promising properties as green and cheap adsorbents.
Graphical Abstract
Keywords
Cite This Article
Tohamy, H. S., El-Sakhawy, M., Kamel, S. (2022). Development of Magnetite/Graphene Oxide Hydrogels from Agricultural Wastes for Water Treatment.
Journal of Renewable Materials, 10(7), 1889–1909. https://doi.org/ 10.32604/jrm.2022.019211