Scientific Technical Review

ISSN: 1820-0206

First published in 1950

About the journal

doi:10.5937/OTEH2402042N

Vol. 74, No.2 (2024), Pages: 42-47

Impressum

Contents

The Influence of the Phase Transformation: Fhyd → Fe₃O₄, Occurs During the Annealing Treatment of Sol-Gel Synthesis, on the Absorption Properties of the Final Synthesis Product (Fe₃O₄/C Hollow-Sphere Nanoparticles)

Violeta Nikolić
Zoran Ivić
Jose F. M. L. Mariano

In this paper, we perform a theoretical study of the possible improvement of the absorption properties ( QUOTE ) of the sample consisting of Fe₃O₄/C hollow sphere nanoparticles, prepared by sol-gel method. In order to achieve proposed goal, we examine the impact of the phase transformation of the sample, occurred during the annealing treatment. It was found that the presence of the Fhyd → Fe₃O₄ phase transformation, occurred during the thermal treatment process, decreases the absorption power of the final synthesis product. Accordingly, we considered ways to mitigate the effects of phase transformation as a mean of improving absorption efficiency. For this purpose, we propose a theoretical framework that relies on a simple quantum mechanical Hamiltonian. We suggest that the absence of the Fhyd → Fe₃O₄ phase transformation, could improve the absorption properties of the final sample (Fe₃O₄/C).

Key words: sol-gel, Hamiltonian, quantum entanglement.

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