Detailed studies on structural, morphological, optical, magnetic and mossbauer properties of Cu-substituted cobalt ferrite nanoparticles

ERGİN İ., İÇİN K., Gungunes H., ÖZÇELİK B.

PHYSICA SCRIPTA, vol.98, no.3, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 98 Issue: 3
  • Publication Date: 2023
  • Doi Number: 10.1088/1402-4896/acb691
  • Journal Name: PHYSICA SCRIPTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, zbMATH
  • Keywords: spinel ferrite, cobalt ferrite, nanoparticles, mossbauer analysis, FT-IR, CATION DISTRIBUTION, COFE2O4 NANOPARTICLES, NICKEL, COPPER, CO, NANOCOMPOSITE, DEGRADATION, OXIDATION, REMOVAL, ALCOHOL
  • Karadeniz Technical University Affiliated: Yes

Abstract

In this research, the effect on the morphology, structure, optic, magnetic and Mossbauer features of Cu2+ doping in Co1-xCuxFe2O4 (x = 0.0-1.0) nanoparticles fabricated using the sol-gel auto-combustion reaction method were investigated. The mainly pure phase structure of Co-spinel was observed in x-ray diffraction (XRD) patterns. The sizes of crystal were observed in between 28.77-36.25 nm. The fundamental vibrational bands of the nanoparticles have been found at 426 and 602 cm(-1) wavelengths via the Fourier transform infrared (FT-IR) spectrum. The most of Co2+ ions are located at the A site and that substitution by Cu+2 ions at the octahedral site for x = 0.0, 0.25, and 0.50. for x = 0.75 content, the Mossbauer results show that some Cu2+ ions are present in both A and B sites. Magnetization measurements at room temperature show that Cu2+ substitution into Co-ferrite significantly changes the magnetic quantities such as coercivity field (Hc), remnant (Mr) and saturation magnetization (Ms). Magnetic hysteresis curves obtained at room temperature show well-known S-shaped features for all nanoparticles with Ms values of 51.5-64.4 emu g(-1), Mr values of 31-36 emu g(-1) and H ( c ) values of 429.5-1447.8 Oe.