Formation of Magnetic Graphene Nanosheets for Rapid Enrichment and Separation of Methyl Orange from Water |
Feng-Jun Zhang, Zhuo Zhang, Fa-Zhi Xie1, Han Xuan1, Hong-Chen Xia1, Lei Zhu2, Won-Chun Oh2 |
Anhui Key Laboratory of Advanced Building Materials, Anhui Jianzhu University 1School of Materials and Chemical Engineering, Anhui Jianzhu University 2Department of Advanced Materials Science & Engineering, Hanseo University |
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ABSTRACT |
Magnetic-graphene nanosheets have been synthesized via a simple effective chemical precipitation method followed by heat treatment. The composite nanosheets are super paramagnetic at room temperature and can be separated by an external magnetic field. The prepared magnetic-graphene nanosheets were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and BET surface area analysis. The results demonstrated the successful attachment of iron oxide nanoparticles to graphene nanosheets. It was found that the attached nanoparticles were mainly $Fe_3O_4$. The magnetic-graphene nanosheets showed near complete methyl orange removal within 10 mintues and would be practically usable for methyl orange separation from water. |
Key words:
Magnetic-graphene, Methyl orange, Enrichment and separation |
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