Sonochemical synthesis and physical properties of Co0.3Ni0.5Mn0.2EuxFe2-xO4 nano-spinel ferrites

M A Almessiere; Y Slimani; S Guner; M Sertkol; A Demir Korkmaz; Sagar E Shirsath; A Baykal

doi:10.1016/j.ultsonch.2019.104654

Sonochemical synthesis and physical properties of Co_0.3Ni_0.5Mn_0.2Eu_xFe_2-xO₄ nano-spinel ferrites

Ultrason Sonochem. 2019 Nov:58:104654. doi: 10.1016/j.ultsonch.2019.104654. Epub 2019 Jun 22.

Authors

M A Almessiere¹, Y Slimani², S Guner³, M Sertkol⁴, A Demir Korkmaz⁵, Sagar E Shirsath⁶, A Baykal⁷

Affiliations

¹ Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia; Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia.
² Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia. Electronic address: yaslimani@iau.edu.sa.
³ Institute of Inorganic Chemistry, RWTH Aachen University, D-52074 Aachen, Germany.
⁴ Deanship of Preparatory Year, Building 450, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia.
⁵ Department of Chemistry, Istanbul Medeniyet University, 34700 Istanbul, Uskudar, Turkey.
⁶ School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW 2052, Australia.
⁷ Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia.

PMID: 31450334
DOI: 10.1016/j.ultsonch.2019.104654

Abstract

Nanoparticles (NPs) of composition Co_0.3Ni_0.5Mn_0.2Eu_xFe_2-xO₄, where 0.00 ≤ x ≤ 0.10 (hereafter called CNMEuF) were synthesized by sonochemical approach using UZ SONOPULS HD 2070 ultrasonic homogenizer (frequency of 20 kHz and power of 70 W). As-synthesized samples were characterized thoroughly to determine the effects of europium ions (Eu³⁺) substitution on their structure, morphology and magnetic traits. Structural analyses of the synthesized NPs confirmed their high purity and crystalline cubic phases. Percent diffuse reflectance (%DR) data and Kubelka-Munk theory were exploited to evaluate the optical band gap energies of the studied CNMEuF NPs. Values of optical band gap energies obtained from the Tauc plots were observed in the range of 1.47-1.58 eV. The hysteresis loops (at room temperature and 10 K) of synthesized NPs were analyzed to determine their magnetic properties. These NPs disclosed superparamagnetic and hard ferrimagnetic character at room temperature and 10 K, respectively. With exception, the sample with x = 0.10 revealed soft ferrimagnetic behavior at 10 K. Eu³⁺ doping was shown to have significant influence on the structure and magnetic attributes of the proposed CNMEuF NPs. Values of various magnetic parameters of proposed compositions were reduced with the increase in Eu³⁺ dopant contents.

Keywords: Cation distribution; Magnetic properties; Nanoparticles; Sonochemical approach; Spinel ferrites; Structure.