International Conference on Applications of Radiation Science and Technology

Preparation and Characteristics of Reduced Graphene Oxide in Ethanol/Water Solution by γ-Ray Irradiation

28 Apr 2017, 12:15

10m

IAEA Board Room B/M1

Oral IRRADIATION FACILITIES -10 A15

Speaker

Mr Binh Doan (Research and Development Center for Radiation Technology, Research and Development Center for Radiation Technology, Viet Nam)

Description

Reduction of graphene oxide (GO) in ethanol/water solution in the presence of oxygen by γ–ray irradiation was studied. Suspension of GO was prepared by dispering graphite oxide in the ethanol/water solution at a concentration of about 1 mg/ml under ultrasonic condition, and then irradiated by γ–rays in an absorbed dose range of 0 – 250 kGy. The characteristic properties of GO and reduced GO (RGO) samples were analysed by Ultra-violet visible (UV-Vis) spectroscopy, Fourier–transform infrared spectroscopy (FTIR), X–ray diffraction (XRD), Raman spectroscopy, Transmission electron microscopy (TEM), Contact angle and Electrical conductivity measurements. The conductivity of the RGO was increased from 2.4x10-2 to 2.2 S/cm with increasing the absorbed doses from 25 to 250 kGy. Results of this study were indicated that a promising way could produce a large amount of pure graphene from GO with a simple reducing process using the gamma irradiation method.