Sintering temperature dependent characterization of Ni nano ferrite with the optimization of frequency dependent properties

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 52, P. 104952 - 104952

Published: Aug. 15, 2024

Language: Английский

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Analysis of the Structural, Morphological, and Elastic Properties of Nanosized CuFe2O4 Spinel Synthesized via Sol-Gel Self-Combustion Method

Physics and Chemistry of Solid State, Journal Year: 2024, Volume and Issue: 25(2), P. 380 - 390

Published: June 26, 2024

Nanosized CuFe2O4 ferrite was synthesized through the sol-gel self-combustion technique, using iron and copper nitrates with citric acid as fuel. The subsequently analyzed X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM). studies validated crystalline nature of CuFe2O4, identifying it having a mixed spinel structure within Fd3m space group. Particle sizes were quantified several methods including Debye-Scherrer, Williamson-Hall, Halder-Wagner, modified size-strain plot (SSP), all indicating consistent average particle size 28 nm. elastic properties nanoparticles extensively characterized, utilizing both line broadening (via Williamson-Hall method) Fourier-transform (FTIR) to evaluate materials' structural dynamics. Additionally, microstrain crystal lattice various constants, such Young's modulus, Shear Debye temperature, velocities longitudinal transverse wave propagation calculated. An electron density distribution also constructed from data, providing insight into electronic environment bonding characteristics material.

Language: Английский

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Synthesis and Characterization of Copper Ferrite Nanoparticles for Efficient Photocatalytic Degradation of Organic Dyes

Journal of Nanotechnology, Journal Year: 2025, Volume and Issue: 2025(1)

Published: Jan. 1, 2025

This paper reports the successful synthesis of spinel‐type CuFe 2 O 4 ferrite nanoparticles with an average particle size 24 nm, produced using citrate sol–gel autocombustion method. The structure synthesized material was analyzed through x‐ray diffraction (XRD) and further supported by Raman FT‐IR spectroscopy. analysis confirmed that formed a spinel Fd3m space group. Valence states energy levels elements were examined photoelectron spectroscopy (XPS). Surface morphology studied scanning electron microscopy (SEM), coupled elemental analysis. magnetic properties investigated vibrating sample magnetometer (VSM). Magnetization measurements revealed exhibited characteristic parameters copper ferrite, saturation magnetization (Ms) 23.10 emu/g, coercivity Hc 415 Oe, remnant (Mr) 12.80 emu/g. These enable efficient separation from aqueous solutions, thereby enhancing process efficiency minimizing catalyst loss during photocatalytic applications. Optical spectrophotometry, revealing optical band gap 1.85 eV, which demonstrates potential for activity under visible light. effectively degraded dyes such as methylene blue (MB), malachite green (MG), Safranine (S), Congo Red (CR), Rhodamine B (RhB) within 180 min, highlighting its practical application potential. study identified hydroxyl radicals (·OH), generated H decomposition light irradiation, played critical role in photo‐Fenton reaction. A proposed mechanism involves excitation light, facilitating transfer leads to generation ·OH radicals, degrade dye molecules. Among tested dyes, CR highest degradation percentage rate constant 0.033 min⁻ 1 followed pseudo‐first‐order kinetic model. effect hydrogen peroxide concentration on also evaluated.

Language: Английский

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Electrodynamic Properties of Epoxy Composites Enhanced with Nanosized Ferrite Fillers

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

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Enhanced Synthesis of Copper Ferrite Magnetic Nanoparticles via Polymer-Assisted Sol-Gel Autocombustion Method for Magnetic Hyperthermia Applications

Journal of nano research, Journal Year: 2024, Volume and Issue: 84, P. 95 - 116

Published: Sept. 20, 2024

In this study, CuFe 2 O 4 nanoparticles with an average crystallite size of approximately 10 nm were produced using the sol-gel autocombustion method. The synthesis was conducted in presence polymers varying monomer counts, aiming to optimize magnetic properties for possible localized heating applications. Comprehensive characterization all samples X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), and Mössbauer spectroscopy. All synthesized exhibited good colloidal stability, zeta potentials around -18.49mV, +3mV +24 +30 mV. Specific Absorption Rate (SAR) assessed calorimetric SAR values calculated both Initial Slope Box-Lucas methods. For sample citric acid, 12.6 W/g 13.23 W/g, respectively. polyethylene glycol, ranged from 3 7 W/g. parameters alternating field 33.3 kA/m 357 kHz.

Language: Английский

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Structural and magnetic studies of Cobalt-Substituted copper ferrites for efficient photocatalytic dye degradation

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: unknown, P. 113648 - 113648

Published: Nov. 1, 2024

Language: Английский

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