The influence of PEG-4000 and silica on crystal structure and magnetic properties of magnesium ferrite (MgFe2O4) nanoparticles

Puspitarum, Deska Lismawenning; Hermawan, Agung; Suharyadi, Edi

doi:10.1063/1.4945519

Cited by 2 publications

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“…The magnetic hysteresis loop of Zn 0.5 Ni 0.5 Fe 2 O 4 before and after encapsulated with PEG-4000 as shown in Figure 3. In Table 3 as we can see the maximum magnetization (M max ) of Zn 0.5 Ni 0.5 Fe 2 O 4 was 18.4 emu/g, and decrease after PEG-4000 encapsulation (see Table 3), its due to PEG-4000 is paramagnetic [11] which weaken the magnetic properties of Zn 0.5 Ni 0.5 Fe 2 O 4 . After the concentration of PEG-4000 increased, then the amount of paramagnetic material increase which lead the value of saturation magnetization decrease by the increasing of PEG-4000 concentration.…”

Section: Resultsmentioning

confidence: 94%

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn_0.5Ni_0.5Fe₂O₄ Magnetic Nanoparticles

Widakdo

Istikhomah

Rifianto

et al. 2018

J. Phys.: Conf. Ser.

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Abstract. Nanocrystalline mixed spinel ferrite of Zn 0.5 Ni 0.5 Fe 2 O 4 magnetic nanoparticles (MNPs) has been successfully synthesized by coprecipitation method and encapsulated and PEG-4000 with various concentrations. X-Ray Diffraction (XRD) patterns showed that nanoparticles contained Zn 0.5 Ni 0.5 Fe 2 O 4 spinel ferrite with the particles size of 15.2 nm. After PEG-4000 encapsulation, particles size decrease became 13.3 nm. Transmission Electron Microscopy (TEM) image showed that the nanoparticles still aglomerate after PEG-4000 encapsulation. The coercivity ( ) of Zn 0.5 Ni 0.5 Fe 2 O 4 was 50.7 Oe. The decrease after PEG-4000 encapsulation became 47.9 Oe, respectively. It is due to the decrease of particle size. The saturation magnetization ( ) of Zn 0.5 Ni 0.5 Fe 2 O 4 was 18.4 emu/g, and decrease to 17.1 emu/g after PEG-4000 encapsulation. This is because PEG-4000 has paramagnetic properties.

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Section: Resultsmentioning

confidence: 94%

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn_0.5Ni_0.5Fe₂O₄ Magnetic Nanoparticles

Widakdo

Istikhomah

Rifianto

et al. 2018

J. Phys.: Conf. Ser.

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“…The maximum magnetization (M max ) of Co 0.5 Ni 0.5 Fe 2 O 4 was 12.0 emu/g, and decrease after PEG-4000 encapsulation to 11.7 emu/g, its due to PEG-4000 is paramagnetic [15] which weaken the magnetic properties of Co 0.5 Ni 0.5 Fe 2 O 4 . After the concentration of PEG-4000 increased, then the amount of paramagnetic material increase which lead the value of saturation magnetization decrease by the increasing of PEG-4000 concentration.…”

Section: Methodsmentioning

confidence: 99%

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Co0.5Ni0.5Fe2O4 Magnetic Nanoparticles

Suharyadi

Griyanika

Utomo

et al. 2018

Indonesian J Appl Phys

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Nanocrystalline mixed spinel ferrite of Co0.5Ni0.5Fe2O4 magnetic nanoparticles (MNPs) has been successfully synthesized by coprecipitation method and encapsulated by PEG-4000 with various concentrations. X-Ray Diffraction (XRD) patterns showed that nanoparticles contained Co0.5Ni0.5Fe2O4 spinel ferrite with crystallite size of 14.9 nm. After PEG-4000 encapsulation particles size decreased became 7.7 nm. Interaction Co0.5Ni0.5Fe2O4 nanoparticles with long chain PEG-4000 caused the crystal growth trap. Lattice parameter and X-Ray density have no significant difference after encapsulated PEG-4000. The coercivity (𝐻𝑐) of Co0.5Ni0.5Fe2O4 was 214 Oe. The 𝐻𝑐 decreased after PEG-4000 encapsulation became 127 Oe, which is due to the decrease of crystallite size. The maximum magnetization (Mmax) of Co0.5Ni0.5Fe2O4 was 12.0 emu/g, and decreased after PEG-4000 encapsulation to 11.7 emu/g, because PEG-4000 is paramagnetic. After the concentration of PEG-4000 increased, then the amount of paramagnetic material increase which lead maximum magnetization decrease.

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The influence of PEG-4000 and silica on crystal structure and magnetic properties of magnesium ferrite (MgFe2O4) nanoparticles

Cited by 2 publications

References 5 publications

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn_0.5Ni_0.5Fe₂O₄ Magnetic Nanoparticles

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn_0.5Ni_0.5Fe₂O₄ Magnetic Nanoparticles

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Co0.5Ni0.5Fe2O4 Magnetic Nanoparticles

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The influence of PEG-4000 and silica on crystal structure and magnetic properties of magnesium ferrite (MgFe2O4) nanoparticles

Cited by 2 publications

References 5 publications

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn0.5Ni0.5Fe2O4 Magnetic Nanoparticles

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn0.5Ni0.5Fe2O4 Magnetic Nanoparticles

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Co0.5Ni0.5Fe2O4 Magnetic Nanoparticles

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Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn_0.5Ni_0.5Fe₂O₄ Magnetic Nanoparticles

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn_0.5Ni_0.5Fe₂O₄ Magnetic Nanoparticles