Structural, optical and magnetic properties of Tm3+ substituted cobalt spinel ferrites synthesized via sonochemical approach

Almessiere, M.A.; Korkmaz, A. Demir; Güner, S.; Sertkol, M.; Shirsath, Sagar E.; Baykal, A.

doi:10.1016/j.ultsonch.2019.02.022

Cited by 113 publications

(29 citation statements)

References 53 publications

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“…The size control of materials is of great importance because the materials with different sizes have different physical properties and applications. Ultrasonic wave specific function is to provide reaction energy to reduce reaction temperature and disperse particles [28] , [30] , [34] . Previous study have shown that the dispersion rate of the produced particles increased with the increasing electric power for the ultrasonic irradiation [42] .…”

Section: Resultsmentioning

confidence: 99%

“…It is envisaged that ultrasonic-assisted co-precipitation reaction is adopted to find a method for preparing nano (NiCuZn)Fe 2 O 4 ferrite with uniform particle size distribution and excellent performance at lower temperature by Y. Slimani, et al [30] , [31] using nitrated salts and NaOH as initial materials and by Hassen Harzali, et al [32] , [33] using sulfated salts as raw materials. The experimental results shown that co-precipitation method coupled with ultrasound irradiation was favor in getting a single spinel phase, the uniformity of co-precipitation particles was significantly improved [28] , [34] . Therefore, it can be seen that the introduction of ultrasound-assisted technology into the co-precipitation reaction can achieve excellent results.…”

Section: Introductionmentioning

confidence: 97%

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Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation

Peng

Xia

Cui

et al. 2021

Ultrasonics Sonochemistry

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Highlights Crystallites sizes of nanoparticles synthesized via ultrasound irradiation were less than 40nm. Ms and Hc of nanoparticles obtained at 25℃ were higher than at 50℃ under the same power. The samples exhibited the highest Ms at 25℃ and the lowest Hc at 50℃ both for 60W. The ultrasonic irradiation had a positive effect on improving the ferrite magnetic properties.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation

Peng

Xia

Cui

et al. 2021

Ultrasonics Sonochemistry

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“…Figure 6 shows that the compositions at different concentrations exhibited spectra in the visible range. The Kubelka–Munk model was used to compute the optical band gap energy ( E g ) [27]. The band gap energy was calculated using a plot of (α hv ) 2 vs. photon energy ( hv ), which is also called the Tauc plot, of the Co 0.5 Ni 0.5 Nb x Fe 2−x O 4 (0.00 ≤ x ≤ 0.10) nanoparticles (Figure 7).…”

Section: Resultsmentioning

confidence: 99%

Effect of Nb3+ Substitution on the Structural, Magnetic, and Optical Properties of Co0.5Ni0.5Fe2O4 Nanoparticles

et al. 2019

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Co0.5Ni0.5NbxFe2−xO4 (0.00 ≤ x ≤ 0.10) nanoparticles (NPs) were prepared using the hydrothermal approach. The X-ray powder diffraction (XRD) pattern confirmed the formation of single-phase spinel ferrite. The crystallite size was found to range from 18 to 26 nm. The lattice parameters were found to increase with greater Niobium ion (Nb3+) concentration, caused by the variance in the ionic radii between the Nb3+ and Fe3+. Fourier transform infrared analysis also proved the existence of the spinal ferrite phase. The percent diffuse reflectance (%DR) analysis showed that the value of the band gap increased with growing Nb3+ content. Scanning electron microscopy and transmission electron microscopy revealed the cubic morphology. The magnetization analyses at both room (300 K, RT) and low (10 K) temperatures exhibited their ferromagnetic nature. The results showed that the Nb3+ substitution affected the magnetization data. We found that Saturation magnetization (Ms), Remanence (Mr), and the Magnetic moment ( n B ) decreased with increasing Nb3+. The squareness ratio (SQR) values at RT were found to be smaller than 0.5, which postulate a single domain nature with uniaxial anisotropy for all produced ferrites. However, different samples exhibited SQRs within 0.70 to 0.85 at 10 K, which suggests a magnetic multi-domain with cubic anisotropy at a low temperature. The obtained magnetic results were investigated in detail in relation to the structural and microstructural properties.

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“…endothermic nature). used for synthesizing the spinel ferrites such as the sol-gel [256], oil-in-water microemulsion reaction method [257], sonochemical approach [258], hydrothermal method [259], surfactantassisted coprecipitation method [260], and micro-emulsion method [261]. The spinel ferrites have an interesting bandgap (as shown in Table 1) which makes them an excellent choice in enhancing the photodegradation efficiency and heavy metals removal applications illustrated in Tables 2&3.…”

Section: Maghemite (γ-Fe2o3)mentioning

confidence: 99%

Insight on water remediation application using magnetic nanomaterials and biosorbents

Maksoud

Elgarahy

Farrell

et al. 2020

Coordination Chemistry Reviews

197

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Adsorption to date is the most effective and utilized technology globally to remove several pollutants in wastewater. In this approach, many adsorbents have been synthesized, tested and used for the elimination and separation of the contaminants such as radionuclides, heavy metals, dyes and pharmaceutical compounds both at lab and industrial scale. However, there are many challenges to adsorption processes such as reducing the high cost, through means of separation of suspending adsorbents to be used again, as well as the ease to synthesize. Two methods that have shown promising results and gained significant interest is that of magnetic nanomaterials and biosorbents due to their effective, safe, eco-friendly, low cost and low-energy intensive material properties. Magnetic nanomaterials act as efficient adsorbents due to their ease of removal of contaminants from wastewater using an applied magnetic field but also their advantageous surface charge and redox activity characteristics. On the other hand, biosorbents have a synergistic effect with their efficient adsorption capacity to remove contaminants, high abundance and participation in waste minimization, helping alleviate ecological and environmental problems. This review highlights, discusses and reports on the state-of-the-art of these two promising routes to adsorption and provides indications as to what are the optimum materials for utilization and insight into their efficiency, reusability and practicality for the removal of pollutants from wastewater streams. Some of the main material focuses are zero-valent iron, iron oxides, spinel ferrites, natural and waste-based biosorbents.

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Structural, optical and magnetic properties of Tm3+ substituted cobalt spinel ferrites synthesized via sonochemical approach

Cited by 113 publications

References 53 publications

Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation

Effect of reaction condition on microstructure and properties of (NiCuZn)Fe2O4 nanoparticles synthesized via co-precipitation with ultrasonic irradiation

Effect of Nb3+ Substitution on the Structural, Magnetic, and Optical Properties of Co0.5Ni0.5Fe2O4 Nanoparticles

Insight on water remediation application using magnetic nanomaterials and biosorbents

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