Effect of Solution pH on Magnetization of Graphene-Cobalt Nanocomposite Synthesized by Electrochemical Deposition Technique

Aghaie Doost, Seyedeh Fatemeh; Ansari, Narges

doi:10.30501/jamt.2019.99511

Authors

Department of Physics-chemistry, Alzahra University, Tehran, Iran.

https://doi.org/10.30501/jamt.2019.99511

Abstract

magnetic graphene nanocomposites are suggested for application in modern technology because of their controllability via external magnetic field and their electrical conductivity. Electrochemical deposition method has found great advantageous to manufacture graphene/metal nanocomposite because of being simple, one –step and cost-effective method. In this research, the effect of electrolyte pH on magnetic response of graphene/cobalt nanocomposite synthesized by electrochemical deposition technique is studied. Synthesized samples in neutral and basic environment are nonmagnetic. Whereas, synthesized samples in acidic solutions are magnetic. In an acidic environment with pH=5, graphene-cobalt nanocomposites are produced with high output mass of synthesized materials and high magnetization. Optimum magnetic sample produced with pH=5 is characterized via X-ray diffraction (XRD), energy-dispersive X-ray (EDX) spectroscopy, Fourier transform infrared spectroscopy (FTIR) and magnetic properties is determined with vibration sample magnetometer (VSM). Morphology of samples is probed by electron microscopy (SEM). The composite consists of graphene sheets and cobalt crystals with a high saturation magnetization of about 119 emu/g which has a potential for application in targeted drug delivery, water remediation, magnetic bio sensors, etc.

Keywords

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Journal of Advanced Materials and Technologies

Effect of Solution pH on Magnetization of Graphene-Cobalt Nanocomposite Synthesized by Electrochemical Deposition Technique

References

References

Volume 8, Issue 3
December 2019
Pages 59-69

Effect of Solution pH on Magnetization of Graphene-Cobalt Nanocomposite Synthesized by Electrochemical Deposition Technique

References

References

Volume 8, Issue 3December 2019Pages 59-69

Volume 8, Issue 3
December 2019
Pages 59-69