Sonochemical synthesis of Eu3+ substituted CoFe2O4 nanoparticles and their structural, optical and magnetic properties

被引：79

作者：

Almessiere, M. A. ^{[1
,2
]}

Slimani, Y. ^{[1
]}

Korkmaz, A. D. ^{[3
]}

Taskhandi, N. ^{[4
]}

Sertkol, M. ^{[5
]}

Baykal, A. ^{[4
]}

Shirsath, Sagar E. ^{[6
]}

Ercan, I. ^{[1
]}

Ozcelik, B. ^{[7
]}

机构：

[1] Imam Abdulrahman Bin Faisal Univ, IRMC, Dept Biophys, POB 1982, Dammam 31441, Saudi Arabia

[2] Imam Abdulrahman Bin Faisal Univ, Coll Sci, Dept Phys, POB 1982, Dammam 31441, Saudi Arabia

[3] Istanbul Medeniyet Univ, Dept Chem, TR-34700 Istanbul, Uskudar, Turkey

[4] Imam Abdulrahman Bin Faisal Univ, IRMC, Dept Nanomed Res, POB 1982, Dammam 31441, Saudi Arabia

[5] Imam Abdulrahman Bin Faisal Univ, Deanship Preparatory Year, POB 1982, Dammam 31441, Saudi Arabia

[6] Univ New South Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

[7] Cukurova Univ, Fac Sci & Letters, Dept Phys, TR-01330 Adana, Turkey

来源：

ULTRASONICS SONOCHEMISTRY | 2019年 / 58卷

关键词：

Spinel ferrites; Structure; Electron microscopy; Optical properties; Magnetic properties; ANTIBACTERIAL BIOMEDICAL ACTIVITY; FERRITE NANOPARTICLES; MAGNETOOPTICAL PROPERTIES; COMBUSTION SYNTHESIS; CATALYTIC-PROPERTIES; SPINEL; CO; MICROWAVE; ULTRASOUND; HYSTERESIS;

D O I：

10.1016/j.ultsonch.2019.104621

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Magnetic, optic and microstructural properties of ultrasonically synthesized CoEuxFe2-xO4 (x <= 0.1) nanoferrites (NFs) have been examined in this study. After sonochemical synthesis, XRD and FT-IR analyses confirmed the purity, the structure (cubic spinel structure and Fd3m space group) and the spectral properties of the spinel ferrite samples. The spherical morphology and chemical compositions of the products were observed via transmission and scanning electron microscopes along with EDX and elemental mapping. Percent diffuse reflectance (%DR) was used for optical investigation. Optical band gaps (E-g) were estimated utilizing Kubelka-Munk theory and Tauc equation. E-g values are in a narrow band of 1.34 to 1.44 eV. The magnetic parameters like M-s (saturation magnetization), SQR = M-r/M-s (squareness ratio), n(B) (magnetic moment), H-c (coercivity) and M-r (remanence) have been evaluated by analyzing measurements of magnetization versus magnetic field performed at room (RT; T = 300 K) and low (T = 10 K) temperatures. It is showed that the different produced CoEuxFe2-xO4 (0.00 <= x <= 0.10) nanospinel ferrites present superparamagnetic (SPM) nature at RT. At low temperature, the various produced CoEuxFe2-xO4 (x <= 0.08) nanospinel ferrites display ferrimagnetic (FM) nature. With exception, the x = 0.10 sample exhibit SPM behavior at T = 10 K. It is noticed that the Eu3+ substitutions alter in a significant way on the magnetic data. A decreasing trend in the M-s, M-r and n(B) values was noted with Eu3+ substitutions.

引用

页数：9

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