Synthesis of as-prepared and sintered spinel ferrites containing cadmium, copper, and chromium expecting magnetism and photoluminescence

• Published in: Materials letters 2024-06, Vol.364, p.136371, Article 136371
• Main Authors: Abdel Galeil, Mohamed M., El Shater, Reda E., Awad, Ahmed W., El-Bahnasawy, Hany H., Meaz, Talat M., Okba, Ehab A., Morita, Shin-ichi
• Format: Article
• Language: English
• Subjects: SEM; Spinel ferrite; VSM; XRD
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2024.136371

•The prepared Cd0.5Cu0.5CrxFe2-xO4 nanoparticles are super-paramagnetic.•The particles size was ca. 40 nm for as-prepared and ca. 200 nm for the sintered ones.•Increasing Cr content highly affects the as-prepared magnetic properties.•Of note is that the sintering improved the magnetic property.•The dual characteristics of PL and magnetism are appealing in clinical medicine. Expecting the dual properties of light emission and magnetism, we synthesized spinel ferrites containing cadmium, copper, and chromium, i.e., Cd0.5Cu0.5CrxFe2-xO4, where x  = 0.0, 0.05, 0.1, 0.2, 0.4, and 0.8. The as-prepared materials were synthesized using a coprecipitation method and then sintered to modify their physical and magnetic properties. All the developed materials exhibited stable photoluminescence (PL) emission in the visible range. Vibrating sample magnetometry (VSM) showed negligible coercivity for both the as-prepared and sintered samples, indicating their superparamagnetic properties. Saturation magnetization (Ms) is an index used to realize a strong magnetic force on a material. Ms can be tuned by changing Cr in the spinel ferrites. For the as-prepared material, as Cr increased from x  = 0.2 to 0.4, the Ms changed from a higher value to zero/smaller values, while for the sintering material, as Cr increased from x  = 0.4 to 0.8, Ms changed from a higher value to nearly zero / smaller values.