Co-substituted Mg–Zn spinel nanocrystalline ferrites: Synthesis, characterization and evaluation of catalytic degradation efficiency for colored and colorless compounds

Irshad, Amna; Zulfiqar, Mehmooda; Ali, Hazim M.; Shahzadi, Neelam; El‐Gawad, Hala H. Abd; Chokejaroenrat, Chanat; Sakulthaew, Chainarong; Anjum, Farida; Suleman, Muhammad

doi:10.1016/j.ceramint.2022.06.241

Cited by 36 publications

(3 citation statements)

References 63 publications

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“…The following equation has been used to compute the PCD efficiency: (1.39 and 1.4 eV), which enhanced the catalytic active sites and resulted in higher degradation effectiveness than other nanoparticles. The author Amna Irshad et al [73] described that the co-precipitation synthesis of cobalt substituted Mg-Zn spinel ferrites nanoparticles revealed a maximum degradation efficiency of∼63.57% for MB under Sun light. Iftikhar et al [30] reported that MB was removed by using Ni 0.4 Co 0.6 Er 0.045 Fe 1.95 O 4 /rGO nanohybrid and the degradation efficiency was 43%.…”

Section: Photo-catalytic Activitymentioning

confidence: 99%

Impact of erbium on structural, optical, magnetic and photocatalytic performance of Co-Mn nanoferrites

Abu-Elsaad¹,

Mazen²,

Nawara³

2022

Phys. Scr.

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The citrate method was used successfully to synthesize rare earth erbium (Er3+) doped Co-Mn nanoferrites (CME nanoferrites) with the chemical formulation Co0.5Mn0.5ErxFe2-xO4 (0.0 ≤x ≤0.1). Specimens' X-ray diffraction (XRD) patterns ensured the production of a single-phase cubic spinel structure; although, a secondary phase of Er2O3 had been observed at higher Er concentration (x ≥0.06). The lattice parameter (a) rose as the Er3+ content in the lattice grew. Average crystallite size, determined by Williamson–Hall method, increased first up to x = 0.06 and then declined at higher values of x. According to FTIR analysis revealed that the spectra included two main absorption bands at ~ 600 and 400 cm-1, as well as other bands. The band gap was estimated using UV-Diffuse reflectance (DR) spectroscopy, which ranged between 1.39 and 1.48 eV. The saturation magnetization was first boosted by doping Er3+ till x=0.02, then decreased as the Er3+ ion concentration rose. Inclusion of erbium ions significantly increased the coercivity from 538 G to 569 G. Photocatalytic effectiveness of CME nanoferrites was examined by measuring Methylene Blue (MB) photocatalytic degradation (PCD) under natural sunshine. Co0.5Mn0.5Fe2O4 had the highest photocatalytic activity in natural sunlight (59 % after 270 min), followed by Co0.5Mn0.5Er0.1Fe1.9O4 (49 % after 270 min). As a result, CME nanoferrites could be considered as a suitable material for water purification.

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Section: Photo-catalytic Activitymentioning

confidence: 99%

Impact of erbium on structural, optical, magnetic and photocatalytic performance of Co-Mn nanoferrites

Abu-Elsaad¹,

Mazen²,

Nawara³

2022

Phys. Scr.

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“…Their remarkable magnetization, resistivity, and permeability render them valuable across various technical domains, including sensors, biomedicine, automotive sectors, cooling systems, data storage, and converters. [14][15][16] Among nano ferrites, cobalt-based particles stand out due to their versatile applications, with magnetic properties being influenced by synthesis processes, preparation methods, sintering temperatures, and particle sizes. [17][18][19] The electrical and magnetic properties of transition metal ions also hold substantial importance across industries, contingent upon factors such as ionic radii and oxidation states.…”

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confidence: 99%

Co³⁺ Doped CdFe₂O₄ Nanoparticles: Structural, Optical, Magnetic, and Electrical Properties

Satayanarayana Goud,

Venkatesh,

Ravi Kumar

et al. 2024

ECS J. Solid State Sci. Technol.

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Through the citrate-gel auto-combustion technique, we synthesized Co-doped cadmium nano ferrites (NFs) with the formula CoxCd1−xFe2O4 (where 0 ≤ x ≤ 1.0 with increments of 0.2). The synthesized materials underwent comprehensive analysis utilizing X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy. Magnetic and electrical properties were evaluated using a vibrating sample magnetometer and LCR meter, respectively. XRD analysis confirmed the spinel phase structure and FD3M space group. SEM analysis revealed agglomerations of nanoparticles and grain boundaries. Elemental analysis of the synthesized nanomaterials was provided by energy dispersive spectroscopy. FTIR spectroscopy identified two main broad bands corresponding to the tetrahedral (A) and octahedral (B) sites, confirming the spinel structure. Magnetic properties such as magnetic saturation, coercivity, and remanent magnetization were characterized using VSM. Additionally, the LCR meter assessed frequency and temperature-dependent dielectric parameters, including AC conductivity (σAC), dielectric permittivity, dielectric loss (tan δ), and impedance spectra. An increase in AC conductivity (σAC) was observed with increasing temperature and frequency.

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“…A soft magnetic ion, Cu 2+ has a magnetic moment of 1 μB. According to M. Suleman et al [14], adding cobalt ions to Mg-Zn ferrites increased their photocatalytic activity against benzimidazole and methylene blue. In the study by S. B. Somvanshi et al [15], a sufficient amount of Gd 3+ considerably increases the number of hydroxyl radicals that the ferrite produces, which in turn increases the photocatalytic activity of the material against Rhodamine B dye.…”

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confidence: 99%

Magnetic, morphological, and photocatalytic studies of Cu²⁺ doped Mg-Zn ferrite nanoparticles

Pund,

Nagwade,

Nagawade

et al. 2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Due to their distinctive characteristics, including their optical, catalytic, electrical, and magnetic properties, spinel ferrite nanoparticles attract more interest. Also, the substitution of transition metals like copper in ferrites has the potential to control their physical characteristics and could improve their catalytic and magnetic capabilities. Cu2+ doped Mg-Zn ferrite samples show a change in behaviour from superparamagnetic to soft ferrimagnetic. The photocatalytic studies for the CuxMg0.5Zn0.5-xFe2O4 (x= 0.1 to 0.5, and Δx= 0.1) nano-ferrites are conducted in visible light to investigate the methylene blue photodecomposition capability. The Cu-Mg-Zn nano-ferrites displayed unique behaviour in terms of Magnetic, and photocatalytic activity. These outcomes show that the Cu-Mg-Zn ferrite samples are apply to water remediation.

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Co-substituted Mg–Zn spinel nanocrystalline ferrites: Synthesis, characterization and evaluation of catalytic degradation efficiency for colored and colorless compounds

Cited by 36 publications

References 63 publications

Impact of erbium on structural, optical, magnetic and photocatalytic performance of Co-Mn nanoferrites

Impact of erbium on structural, optical, magnetic and photocatalytic performance of Co-Mn nanoferrites

Co³⁺ Doped CdFe₂O₄ Nanoparticles: Structural, Optical, Magnetic, and Electrical Properties

Magnetic, morphological, and photocatalytic studies of Cu²⁺ doped Mg-Zn ferrite nanoparticles

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Co-substituted Mg–Zn spinel nanocrystalline ferrites: Synthesis, characterization and evaluation of catalytic degradation efficiency for colored and colorless compounds

Cited by 36 publications

References 63 publications

Impact of erbium on structural, optical, magnetic and photocatalytic performance of Co-Mn nanoferrites

Impact of erbium on structural, optical, magnetic and photocatalytic performance of Co-Mn nanoferrites

Co3+ Doped CdFe2O4 Nanoparticles: Structural, Optical, Magnetic, and Electrical Properties

Magnetic, morphological, and photocatalytic studies of Cu2+ doped Mg-Zn ferrite nanoparticles

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Co³⁺ Doped CdFe₂O₄ Nanoparticles: Structural, Optical, Magnetic, and Electrical Properties

Magnetic, morphological, and photocatalytic studies of Cu²⁺ doped Mg-Zn ferrite nanoparticles