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Effect of alpha particle irradiations on the structural properties of graphene oxide

Nuclear and Radiation Physics Research Laboratory, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef City 62511, Egypt

E-mail Address: mostafa.eisa@science.bsu.edu.eg

E-mail Address: mfesms@yahoo.com

Corresponding author.

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and

Waleed M. A. El Rouby

Materials Science and the Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef City, Egypt

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https://doi.org/10.1142/S0217979218503435Cited by:5 (Source: Crossref)

Abstract

Graphene has been considered one of the most important materials for many applications due to its unique electronic structure, physical and chemical properties. Graphite flakes are the main source of graphene oxide which can be transformed to graphene after reduction. The effect of irradiation on graphene oxide has been rarely studied, only few studies dealing with the irradiation of graphene oxide with gamma radiation were reported. The effect of irradiation of graphene oxide with gamma ray doses (low linear energy transfer) has been previously studied. It was found that there are no changes in the crystalline structure of graphene oxide after irradiation. Graphene oxide was prepared by modified Hummer’s method. The scanning electron microscopy image of the obtained sample suggests the presence of both single and multilayer graphene oxide sheets. The structural measurements for the graphene oxide samples with high linear energy transfers were carried out after irradiations with different doses of alpha particle (9.30–479.90 Gy). The effect of irradiation on oxygen functional groups of graphene oxide was followed by Fourier transforms infra-red spectrometer. Moreover, the irradiation effect on the lamellar space of graphene oxide layers was measured by X-ray diffraction. It was found that the d-spacing of graphene oxide was decreased after alpha particles irradiation with different doses. The effect of irradiation on dielectric constant and conductivity of graphene oxide samples was measured in the frequency range (200 Hz–1.00 MHz). The dielectric measurements show less dependence on irradiation doses. The graphene oxide sample can be used as radiation dosimeter for $α$ -particles in the range of the low irradiation doses.

Keywords:

PACS: 61.80.Jh, 73.22.Pr, 61.80.Lj, 61.72.U-

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