Formation of Magnetic Graphene Nanosheets for Rapid Enrichment and Separation of Methyl Orange from Water

Zhang, Feng-Jun; Zhang, Zhuo; Xie, Fa-Zhi; Xuan, Han; Xia, Hong-Chen; Zhu, Lei; Oh, Won-Chun; Zhang, Feng-Jun; Zhang, Zhuo; Xie, Fa-Zhi; Xuan, Han; Xia, Hong-Chen; Zhu, Lei; Oh, Won-Chun

doi:2014.51.6.570

J. Korean Ceram. Soc. > Volume 51(6); 2014 > Article

Journal of the Korean Ceramic Society 2014;51(6): 570.
doi: https://doi.org/10.4191/kcers.2014.51.6.570

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

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