Details

Autor(en) / Beteiligte

• Gingasu, Dana
• Culita, Daniela C
• Calderon Moreno, Jose Maria
• Marinescu, Gabriela
• Bartha, Cristina
• Oprea, Ovidiu
• Preda, Silviu
• Chifiriuc, Mariana Carmen
• Popa, Marcela

Titel

Synthesis of CoFe[sub.2]O[sub.4] through Wet Ferritization Method Using an Aqueous Extract of Eucalyptus Leaves

Ist Teil von

• Coatings (Basel), 2023-07, Vol.13 (7)

Ort / Verlag

MDPI AG

Erscheinungsjahr

2023

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• This study explored a new green approach of the wet ferritization method to obtain magnetic cobalt ferrite (CoFe[sub.2]O[sub.4]) by using eucalyptus leaves aqueous extract as a reducing/chelating/capping agent. The spinel single cubic phases of prepared samples were proved by powder X-ray diffraction (XRD), Fourier-Transform Infrared (FTIR) and Raman spectroscopy. The average crystallite size is in the range between 3 and 20 nm. The presence of the functional groups coating the obtained material is confirmed from FTIR and thermal analysis. The scanning electron microscopy (SEM) analysis showed a morphology consisting of nanoparticle aggregates. Raman spectroscopy detects the characteristic bands of spinel-type CoFe[sub.2]O[sub.4]. Magnetic investigations reveal the formation of ferromagnetic compounds with cubic magnetic anisotropy and a blocking temperature around 140 K, specific for this type of material. The biosynthesized CoFe[sub.2]O[sub.4] could be an attractive candidate for biomedical applications, exhibiting promising antimicrobial and antibiofilm activity, particularly against Gram-negative bacteria and fungal strains.