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Influence of γ-irradiation on the structural and optical properties of PVA/rGO films reinforced with rGO for nuclear shielding applications. by Sultan J. Alsufyani is a Engineering article available to read on EtoBox.

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The polyvinyl alcohol films reinforced with reduced graphene oxide (PVA/rGO) have been synthesized by the film casting method. Fourier-transform infrared spectroscopy (FTIR) was used to measure the spectra for PVA/ rGO films before and after being exposed to various dosages of γ-irradiation. XRD "X-ray diffraction" has been used to evaluate the structure of PVA/rGO before and after γ-ray irradiation and showed the potential for some H-bonding to be broken along with the splitting of the major chain. When compared to the non-irradiated sample, the FT-IR spectra of the irradiated samples show clear variations in peak locations and intensities. The absorbance spectral behavior of PVA/rGO film before and after irradiation with γ-rays at different dosages demonstrates a sharp and intense absorption spectrum centered at 205 nm and abroad, as well as a weak absorption spectrum centered at 277 nm. The absorbance spectrum fitting (ASF), the first derivation of the absorption spectrum fitting (DASF), and Tauc's methods were studied to investigate the optical energy gap for the PVA/rGO films before and after γ-irradiation with varied gamma doses. Also, the linear refractive index (n) for γ-ir

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Author

Sultan J. Alsufyani

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)