Synthesis, structural and magnetic properties of ZnxMg1−xFe2O4 nanoferrites

Masina, Patrick; Moyo, T.; Abdallah, H. M. I.

doi:10.1016/j.jmmm.2014.12.053

Cited by 36 publications

(13 citation statements)

References 26 publications

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“…Mg 1-x Zn x Fe 2 O 4 has been reported as a promising candidate for hyperthermia therapy in cancer treatment owing to their appropriate heating effects in response to the alternating magnetic field, chemical stability, biocompatibility, and superparamagnetic properties [9,10]. Moreover, magnesium and zinc are eco-friendly and nontoxic elements, and are essential vital elements found in the human body [11]. Liu et al [12] synthesized Mg 1-x Zn x Fe 2 O 4 nanoparticles by coprecipitation method and studied their structural, magnetic, and thermal properties.…”

Section: Introduction mentioning

confidence: 99%

Zn2+ substituted superparamagnetic MgFe2O4 spinel-ferrites: Investigations on structural and spin-interactions

2020

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Nano-magnetic ferrites with composition Mg1−xZnxFe2O4 (x = 0.3, 0.4, 0.5, 0.6, and 0.7) have been prepared by coprecipitation method. X-ray diffraction (XRD) studies showed that the lattice parameter was found to increase from 8.402 to 8.424 Å with Zn2+ ion content from 0.3 to 0.7. Fourier transform infrared (FTIR) spectra revealed two prominent peaks corresponding to tetrahedral and octahedral at around 560 and 430 cm−1 respectively that confirmed the spinel phase of the samples. Transmission electron microscopy (TEM) images showed that the particle size was noted to increase from 18 to 24 nm with an increase in Zn content from x = 0.3 to 0.7. The magnetic properties were studied by vibrating sample magnetometer (VSM) and electron paramagnetic resonance (EPR) which ascertained the superparamagnetic behavior of the samples and contribution of superexchange interactions. The maximum magnetization was found to vary from 23.80 to 32.78 emu/g that increased till x = 0.5 and decreased thereafter. Further, X-ray photoelectron spectroscopy (XPS) was employed to investigate the chemical composition and substantiate their oxidation states.

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Section: Introduction mentioning

confidence: 99%

Zn2+ substituted superparamagnetic MgFe2O4 spinel-ferrites: Investigations on structural and spin-interactions

2020

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“…The remanent magnetization M r should follow the same trend with coercivity as to reach zero remanence for T ≥ T B due to the fact that the thermal energy overcomes anisotropy energy barrier giving rise to superparamagnetic regime [19,21]. On the other side, the temperature dependence of M S below the Curie temperature is generally described by Bloch's law [22] (owing to the behavior of spin wave excitations, particularly "magnons") as M S (T)=M S (0)[1-(T/T 0 ) α ], where the exponent is α =3/2 for bulk systems and α <2 for nanosized materials [23,24]. Fig.5b shows a simulated curve of M S (T) (for M S (0)=73emu/g, T 0 =650K, α =1.55) as to contain the experimental M S values obtained from M-H curves at 300K and 5K given in Fig.4a.…”

Section: Methodsmentioning

confidence: 99%

Magnetic Properties of Manganese Ferrite (MnFe2o4) Nanoparticles Synthesized by Co-Precipitation Method

Umut

2019

Hittite J. Sci. Eng.

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N anostructured transition metal oxides, also known as spinel ferrites, are commonly studied due to their potential use in a variety of biomedical applications such as magnetic resonance imaging, hyperthermia and targeted drug delivery [1]. The general formula for ferrite family is given as MFe 2 O 4 ; M=Zn, Ni, Co, Mn, where depending on the Curie temperature, magnetic anisotropy and magnetic moment of the substitution metal M, the overall magnetic properties of ferrites can be adjusted in order to optimize their performance in these biomedical applications. In this manner, manganese ferrite MnFe 2 O 4 is a good candidate with its relatively high magnetization and biocompatibility [2,3]. For these reasons, nanosized MnFe 2 O 4 particles were deeply investigated in literature, where particles were synthesized with different techniques and their surfaces were functionalized with different capping agents.

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“…So in the studies [14,42,[57][58][59][60][61], the results of Mössbauer studies of MNPs MnFe 2 O 4 with sizes from 3 to 98 nm are presented. MS of MNPs Zn x Fe 3−x O 4 , whose dimensions according to the results of the XRD ranged from 21 to 7 nm [14], with Zn substitution values greater than 0.2 are similar to the MS shown in Fig.…”

Section: Size Estimation Of Synthesized Mnpsmentioning

confidence: 99%

Influence of functionalization with citric acid on the properties of magnetic nanoparticles Zn-=SUB=-x-=/SUB=-Fe-=SUB=-3-x-=/SUB=-O-=SUB=-4-=/SUB=- (0≤ x≤ 1.0)

Kamzin

Caliskan

Doǧan

et al. 2022

Physics of the Solid State

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The effect of surface functionalization with citric acid on the properties of magnetic nanoparticles (MNPs) ZnxFe3-xO4 (x=0; 0.25; 0.5; 0.75; 1.0) synthesized by the hydrothermal method was studied. To study the properties of MNPs, X-ray diffractometry (XRD) and energy dispersive X-ray spectroscopy (EDS) were used. The magnetic properties of the samples and the phase state of MNPs were studied using a physical property measurement system (PPMS) and Mossbauer spectroscopy (MS). It has been established that the sizes of crystallites and the crystal lattice parameter of ZnxFe3-xO4 MNPs change with increasing Zn2+ concentration. The low values of the coercive force and the presence of a doublet on the MS indicate the presence of both ferrimagnetic and superparamagnetic components. Keywords: ZnxFe3-xO4 ferrite spinel MNPs, hydrothermal synthesis, functionalization of MNPs with citric acid, crystal structure, magnetic properties, magnetic structure.

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Synthesis, structural and magnetic properties of ZnxMg1−xFe2O4 nanoferrites

Cited by 36 publications

References 26 publications

Zn2+ substituted superparamagnetic MgFe2O4 spinel-ferrites: Investigations on structural and spin-interactions

Zn2+ substituted superparamagnetic MgFe2O4 spinel-ferrites: Investigations on structural and spin-interactions

Magnetic Properties of Manganese Ferrite (MnFe2o4) Nanoparticles Synthesized by Co-Precipitation Method

Influence of functionalization with citric acid on the properties of magnetic nanoparticles Zn-=SUB=-x-=/SUB=-Fe-=SUB=-3-x-=/SUB=-O-=SUB=-4-=/SUB=- (0≤ x≤ 1.0)

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