Penurunan grafin oksida kepada grafin menggunakan sinar gama

Translated title of the contribution: Reduction of graphene oxide to graphene by using gamma irradiation

Shamellia Sharin, Irman Abdul Rahman, Ainee Fatimah Ahmad, Hur Munawar Kabir Mohd, Faizal K.P. Kunchi Mohamed, Shahidan Radiman, Muhamad Samudi Yasir, Sukiman Sarmani, Muhammad Taqiyuddin Mawardi Ayob, Intan Syakeela Ahmad Bastamam

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This research aims to gauge the ability of gamma radiation to induce the reduction of graphene oxide to graphene. Graphene oxide powders were dispersed into a mixture of alcohol and deionized water, and the mixture was then irradiated with a60Co source using a GammaCell 220 Excel irradiator at absorbed doses of 0, 5, 15, 20 and 35 kGy. According to characterization using Fourier Transformed Infrared Spectroscopy (FTIR), it can be seen that almost every oxygen-containing functional group has been removed after irradiation of the graphene oxide mixture. Reduction of graphene oxide was also proven from the characterization using UV-Vis Spectroscopy, in which the wavelength of graphene oxide at 237 nm was red-shifted to 277 nm after being irradiated and the peak at 292 nm, (indicating the carboxyl group) disappears in the UV-Vis spectrum of reduced graphene oxide. Morphology of graphene oxide also changed from a smooth and flat surface to crumpled. The ratio of carbon/oxygen in the graphene oxide was lower than the carbon/oxygen of reduced graphene oxide. At the end of the experiment, it can be deduced that graphene oxide underwent reduction, characterized before and after irradiation using Emission Scanned Electron Microscopy and Energy Dispersive X-ray, Fourier Transformed Infrared Spectroscopy and UV-Vis Spectroscopy. Therefore, we postulate that the irradiation technique that induces reduction, can be used to obtain reduced graphene oxide from graphene oxide.

Original languageMalay
Pages (from-to)1223-1228
Number of pages6
JournalMalaysian Journal of Analytical Sciences
Volume19
Issue number6
Publication statusPublished - 2015

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Graphite
Oxides
Irradiation
Oxygen
Ultraviolet spectroscopy
Infrared spectroscopy
Carbon
Deionized water
Gamma rays
Powders
Functional groups
Electron microscopy
Gages

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Penurunan grafin oksida kepada grafin menggunakan sinar gama. / Sharin, Shamellia; Abdul Rahman, Irman; Ahmad, Ainee Fatimah; Mohd, Hur Munawar Kabir; K.P. Kunchi Mohamed, Faizal; Radiman, Shahidan; Yasir, Muhamad Samudi; Sarmani, Sukiman; Ayob, Muhammad Taqiyuddin Mawardi; Bastamam, Intan Syakeela Ahmad.

In: Malaysian Journal of Analytical Sciences, Vol. 19, No. 6, 2015, p. 1223-1228.

Research output: Contribution to journalArticle

Sharin, Shamellia ; Abdul Rahman, Irman ; Ahmad, Ainee Fatimah ; Mohd, Hur Munawar Kabir ; K.P. Kunchi Mohamed, Faizal ; Radiman, Shahidan ; Yasir, Muhamad Samudi ; Sarmani, Sukiman ; Ayob, Muhammad Taqiyuddin Mawardi ; Bastamam, Intan Syakeela Ahmad. / Penurunan grafin oksida kepada grafin menggunakan sinar gama. In: Malaysian Journal of Analytical Sciences. 2015 ; Vol. 19, No. 6. pp. 1223-1228.
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AU - Radiman, Shahidan

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AU - Ayob, Muhammad Taqiyuddin Mawardi

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AB - This research aims to gauge the ability of gamma radiation to induce the reduction of graphene oxide to graphene. Graphene oxide powders were dispersed into a mixture of alcohol and deionized water, and the mixture was then irradiated with a60Co source using a GammaCell 220 Excel irradiator at absorbed doses of 0, 5, 15, 20 and 35 kGy. According to characterization using Fourier Transformed Infrared Spectroscopy (FTIR), it can be seen that almost every oxygen-containing functional group has been removed after irradiation of the graphene oxide mixture. Reduction of graphene oxide was also proven from the characterization using UV-Vis Spectroscopy, in which the wavelength of graphene oxide at 237 nm was red-shifted to 277 nm after being irradiated and the peak at 292 nm, (indicating the carboxyl group) disappears in the UV-Vis spectrum of reduced graphene oxide. Morphology of graphene oxide also changed from a smooth and flat surface to crumpled. The ratio of carbon/oxygen in the graphene oxide was lower than the carbon/oxygen of reduced graphene oxide. At the end of the experiment, it can be deduced that graphene oxide underwent reduction, characterized before and after irradiation using Emission Scanned Electron Microscopy and Energy Dispersive X-ray, Fourier Transformed Infrared Spectroscopy and UV-Vis Spectroscopy. Therefore, we postulate that the irradiation technique that induces reduction, can be used to obtain reduced graphene oxide from graphene oxide.

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