Effect of 60Co gamma irradiation on hydrothermally synthesized Ga2O3-Tio2 nanocomposites

Madhura N Talwar ^1,2, Asha P Shirni ², Sweekar Baradekoppa Ramesh ³

⁰Department of Studies in Electronics, PG Center, Hemagangotri, University of Mysore, Hassan 573220, India.

Radiation Protection Dosimetry +

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July 17, 2024

View abstract on PubMed

Summary

This study investigated gamma irradiation effects on gallium oxide-titanium oxide (Ga2O3-TiO2) nanocomposites. Gamma irradiation increased grain size and bandgap, altering microstructure.

Area Of Science

Materials Science
Nanotechnology
Radiation Physics

Background

Gallium oxide-titanium oxide (Ga2O3-TiO2) nanocomposites are advanced materials with potential applications in various fields.
Understanding the impact of external stimuli, such as gamma irradiation, is crucial for tailoring their properties.

Purpose Of The Study

To investigate the effects of 60Co gamma irradiation on the structural and optical properties of Ga2O3-TiO2 nanocomposites.
To analyze how different doses of gamma irradiation influence the microstructure and bandgap of the synthesized material.

Main Methods

Ga2O3-TiO2 nanocomposites were synthesized using a hydrothermal method at 120°C with specific precursors and pH.
The synthesized nanocomposites were exposed to varying doses of 60Co gamma irradiation (25, 50, and 75 kGy).
Characterization involved scanning electron microscopy (SEM), UV-Visible spectroscopy, X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR).

Main Results

Gamma irradiation induced significant microstructural changes in the Ga2O3-TiO2 nanocomposites.
An increase in grain size was observed with increasing gamma irradiation doses.
The bandgap of the Ga2O3-TiO2 nanocomposites was found to increase post-irradiation.

Conclusions

60Co gamma irradiation effectively modifies the microstructure and optical properties of Ga2O3-TiO2 nanocomposites.
The observed changes, including increased grain size and bandgap, suggest potential for radiation-induced property tuning.
Further research can explore applications leveraging these irradiation-modified characteristics.