Original Article

Synthesis and structural, morphological, and chimico-optical properties of Sr₂FeO₄ Ruddlesden-Popper oxide

¹ Laboratory of Dosing, Analysis and Characterization with High Resolution (DAC-hr), Ferhat Abbas-Setif1 University, 19000 Setif, Algeria
² Laboratory of Physical chemistry of materials and Catalysis (LPMC), University A. Mira of Bejaia, 06000 Bejaia, Algeria
³ C.A.L., 34110 Frontignan, France

^* e-mail: pstgregoire@gmail.com

Received: 20 February 2024
Accepted: 2 July 2024
Published online: 13 August 2024

Abstract

The citrate sol-gel process was used to produce Sr₂FeO₄ strontium ferrite powder. The method involves metallic nitrates, citric acid and distilled water as a solvent, followed by calcination. The Ruddlesden-Popper structure of the resulting compound was identified by XRD analysis. The different molecular structures and vibration bands were studied by FTIR. The morphology of the powder was analysed using SEM. Samples appear of good crystalline quality and with interesting nanostructure. We studied optical properties and determined the band gap energy to lie about 2.8 eV, Sr₂FeO₄ can thus absorb photons having a wavelength less than 444 nm, approximately, making this compound potentially interesting for applications.