Investigation of the structural, optical and magnetic properties of CuO/CuFe2O4 nanocomposites synthesized via simple microemulsion method

Rashad, M.M.; Soltan, S.; Ramadan, A. A.; Bekheet, Maged F.; Rayan, D. A.

doi:10.1016/j.ceramint.2015.06.046

Cited by 64 publications

(19 citation statements)

References 33 publications

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“…A wide variety of methods are being used to synthesize spinel ferrite nanoparticles including citric acid combustion [12], sol-gel auto combustion [13], hydrothermal [14], co-precipitation methods [15,16]. In addition, thermolysis [17], wet chemical co-precipitation technique [18], self-propagating and microemulsion [19,20], are also used. The experimental conditions used in the preparation of these materials play an essential role in the properties and the particle size of the ferrite nanoparticles produced.…”

Section: Introductionmentioning

confidence: 99%

Structural and magnetic properties of MgFe2O4 nanopowder synthesized via co-precipitation route

et al. 2020

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Mg ferrite was successfully synthesized by adopting a simple co-precipitation route. A physical property of Mg ferrite has been investigated employing XRD, FTIR, SEM, EDS, AFM and Raman spectroscopic techniques. The XRD results indicated the formation of single phase spinel ferrite with crystalline size of 36 nm. FTIR results confrmed ferrite tetrahedral (580 cm −1) and octahedral sites (430 cm −1) metal oxygen vibrations. The Raman result revealed the well defined Raman active modes of synthesized sample. Scanning electron microscopic (SEM) studies revealed nano crystalline nature of the sample. An elemental composition of the sample was studied by energy dispersive spectroscopy (EDS). Crystallite size, X-ray density, hopping length, and magnetic properties of the product are also reported. AFM provides surface roughness. The magnetic hysteresis curves clearly indicate the soft nature of the prepared nanoferrite. The Raman spectra shows five Raman active modes (A 1g + E g + 3F 2g) which are expected in the spinel structure and Raman spectra has a very good agreement with reported data. Various magnetic parameters such as saturation magnetization (M s), and remanence (M r) and coerciviy (H c) are obtained from the hysteresis loops.

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Section: Introductionmentioning

confidence: 99%

Structural and magnetic properties of MgFe2O4 nanopowder synthesized via co-precipitation route

et al. 2020

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“…Additionally, the absorption peaks were corresponding to the characteristic peak of copper and iron ions. Three bands were related to 2 B 2g → 2 B 1g , 2 A 1g → 2 B 1g and 2 E g → 2 B 1g energy transitions of octahedral symmetry copper ion for pure copper oxide [38]. The first two transitions were very close in energy and often appeared in the form of one broad band profile in near-infrared.…”

Section: Optical Properties Uv-vis-nir Spectramentioning

confidence: 95%

“…The first two transitions were very close in energy and often appeared in the form of one broad band profile in near-infrared. The third band was observed in the visible region which exhibited a broad optical absorption band around 780 nm, assigned to the 2 E g → 2 B 1g transition imputed to Jahn-Teller splitting of d levels of copper ions [38]. Otherwise, three transition bands 6 A 1g (S) → 4 T 1g (G) (ν 1 ), 6 A 1g (S) → 4 T 2g (G) (ν 2 ) were assigned ; ν 1 at 950 nm whereas ν 2 at 550 to 650 nm usually as a shoulder.…”

Section: Optical Properties Uv-vis-nir Spectramentioning

confidence: 99%

Magnetic Properties and Induction Heating Ability Studies of Spinal Ferrite Nanoparticles for Hyperthermia Treatment of Tumours”

Rayan

Ismail

2019

Egypt. J. Biophys. Biomed. Engng.

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I N this research synthesizesnanocrystallineCuFe 2 O 4 spinel structure using co-precipitation method. X-ray diffraction (XRD), transmissionelectron microscopy (TEM), and vibrating sample magnetometer (VSM) are utilized in order to study crystalline size, lattice parameters, microstructure and optical and magnetic properties of the formed nanopowders.Hyperthermia is one of the most promising approaches in cancer therapy. The most commonly used heating method in the clinical setting is capacitive heating that uses a radiofrequency (RF) electric field.The induction heating behavior and heating properties of the CuFe 2 O 4 nanoparticles in an alternating magnetic field at 150-300 kHz were estimated.The resultmaking Cu ferrite appropriate for hyperthermia treatment of cancer.These results will help us to optimize the conditionsfor tumor treatment by magnetic nanoparticles.

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“…Among synthetic ferrite spinels, only CuFe 2 O 4 and NiFe 2 O 4 compounds have both cubic and tetragonal modifications. Two polymorphs of CuFe 2 O 4 may coexist together within nanocomposite material or ceramic of Cu-Fe-O [25][26][27][28][29][30][31][32][33][34][35][36]. The phase transition tetragonal ↔ cubic CuFe 2 O 4 is fixed at 402-440 • C [29,31].…”

Section: Morphology and Chemistry Of Cu-rich Magnesioferritementioning

confidence: 99%

Copper-Containing Magnesioferrite in Vesicular Trachyandesite in a Lava Tube from the 2012–2013 Eruption of the Tolbachik Volcano, Kamchatka, Russia

et al. 2018

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Cu-rich magnesioferrite was found in vesicular basaltic trachyandesite in one of lava tubes (Duplex) that formed during the 2012–2013 eruption of the Tolbachik volcano, Kamchatka. This mineral is commonly associated with hematite, tenorite, halite, sylvite, and Ca-rich silicates (mainly, esseneite and Na-rich melilite) in high-temperature (800–1000 °C) reactionary zones (up to 100 µm) covering vesicular rocks and lava stalactites in the Duplex tube. The mineral relationships of this assemblage indicate the following crystallization sequence: Ca-rich silicates + hematite → Cu-rich magnesioferrite → tenorite → chlorides. This formed due to the reaction of hot gases containing Cu, alkalis, and Cl with solidified lava rock. The composition of magnesioferrite varies strongly in CuO (5.8–17.3 wt %; cuprospinel end-member—15–47 mol %), whereas the contents of other oxides are minor, indicating the main isomorphic substitution is Mg2+ ↔ Cu2+. Compositions with maximal CuO content nominally belong to Mg-rich cuprospinel: (Cu0.48Mg0.41Mn0.09Zn0.02Ca0.02) (Fe3+1.94Al0.03Ti0.02)O4. Increasing CuO content of the Duplex Cu-rich magnesioferrite is reflected in Raman spectra by moderate right shifting bands at ≈700–710 and 200–210 cm−1 and the appearance of an additional band at 596 cm−1. This supports the main isomorphic scheme and may indicate a degree of inversion in the spinel structure.

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Investigation of the structural, optical and magnetic properties of CuO/CuFe2O4 nanocomposites synthesized via simple microemulsion method

Cited by 64 publications

References 33 publications

Structural and magnetic properties of MgFe2O4 nanopowder synthesized via co-precipitation route

Structural and magnetic properties of MgFe2O4 nanopowder synthesized via co-precipitation route

Magnetic Properties and Induction Heating Ability Studies of Spinal Ferrite Nanoparticles for Hyperthermia Treatment of Tumours”

Copper-Containing Magnesioferrite in Vesicular Trachyandesite in a Lava Tube from the 2012–2013 Eruption of the Tolbachik Volcano, Kamchatka, Russia

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