The effect of Ce3+ doping on structural, optical, ferromagnetic resonance, and magnetic properties of ZnFe2O4 nanoparticles

Alshahrani, B.; Elsaeedy, H.I.; Fares, S.; Korna, A. H.; Yakout, H.A.; Maksoud, M. I. A. Abdel; Fahim, Ramy Amer; Gobara, Mohamed; Ashour, Ahmed

doi:10.1007/s10854-020-04856-9

Cited by 27 publications

(15 citation statements)

References 67 publications

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“…88-1935, and 74-2082) [ 23 , 24 ]. The crystallite size (D) ranged between 7.75 and 11.63 nm, and the lattice constant, a exp , was in the range 8.34–8.44 nm, as obtained in our previous work [ 25 ]. The change in a exp and D is attributed to the replacement of the smaller ionic crystal radius of Fe 3+ (0.064 nm) by the larger Ce 3+ (0.103 nm) ions [ 26 , 27 , 28 , 29 ].…”

Section: Resultsmentioning

confidence: 70%

“…The positions of the vibrational bands are listed in Table 1 . In general, spinel ferrites show two essential vibrational bands, υ 1 and υ 2 , which correspond to the stretching vibration of tetrahedral groups (A-site) and the stretching vibration of octahedral groups (B-site) [ 25 ]. From Figure 2 , it is clear that the insertion of Ce 3+ ions into the structure of ZnCe x Fe 2−x O 4 shifted the bands of the tetrahedral and octahedral sites toward the lower-frequency side.…”

Section: Resultsmentioning

confidence: 99%

“…This augmentation in the ionic radii of the A and B sites reduced the fundamental frequency [ 26 , 33 ]. The peaks with a wave number of 2354 cm −1 were attributed to the presence of carbonyl groups, while the peak at around 2926 cm −1 was ascribed to O-H stretching [ 10 , 11 , 12 , 25 , 34 , 35 ].…”

Section: Resultsmentioning

confidence: 99%

“…The surface behaviour reveals an inhomogeneous grain appearance, in which the smooth agglomerates can be observed due to the occupation of a large quantity of Ce 3+ ions at the grain boundary that could control the grain growth [ 36 ]. The surface was markedly porous and presented a coalescing form of the agglomerated particles connected with the interfacial surface tension phenomena [ 25 ]. The composition of the ZnCe 0.8 Fe 1.92 O 4 sample was analysed using energy-dispersive X-ray spectra (EDX) ( Figure 3 f), and the presence of Ce, Zn, O, C, and Fe was confirmed [ 11 , 12 ].…”

Section: Resultsmentioning

confidence: 99%

“…The (Ce (NO 3 ) 3 .6H 2 O, 99.99%), (Fe (NO 3 ) 3 ·9H 2 O, 98.0%), (ZnSO 4 .7H 2 O, 98%), (C 6 H 8 O 7 , 99.57%), and (C 2 H 6 O 2 , 99.8%) were purchased from Sigma-Aldrich, Germany and used as received without further purification. The synthesis of ZnCe x Fe 2−x O 4 (X = 0.0, 0.02, 0.04, 0.06, 0.08) powders was carried out using a facile sol–gel method as described in detail in our previous work [ 10 , 11 , 12 , 25 , 34 , 35 ].…”

Section: Methodsmentioning

confidence: 99%

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Influence of Ce3+ Substitution on Antimicrobial and Antibiofilm Properties of ZnCexFe2−xO4 Nanoparticles (X = 0.0, 0.02, 0.04, 0.06, and 0.08) Conjugated with Ebselen and Its Role Subsidised with γ-Radiation in Mitigating Human TNBC and Colorectal Adenocarcinoma Proliferation In Vitro

Abdel-Rafei

Thabet

Maksoud

et al. 2021

IJMS

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Cancers are a major challenge to health worldwide. Spinel ferrites have attracted attention due to their broad theranostic applications. This study aimed at investigating the antimicrobial, antibiofilm, and anticancer activities of ebselen (Eb) and cerium-nanoparticles (Ce-NPs) in the form of ZnCexFe2−XO4 on human breast and colon cancer cell lines. Bioassays of the cytotoxic concentrations of Eb and ZnCexFe2−XO4, oxidative stress and inflammatory milieu, autophagy, apoptosis, related signalling effectors, the distribution of cells through the cell-cycle phases, and the percentage of cells with apoptosis were evaluated in cancer cell lines. Additionally, the antimicrobial and antibiofilm potential have been investigated against different pathogenic microbes. The ZOI, and MIC results indicated that ZnCexFe2−XO4; X = 0.06 specimen reduced the activity of a wide range of bacteria and unicellular fungi at low concentration including P. aeruginosa (9.5 mm; 6.250 µg/mL), S. aureus (13.2 mm; 0.390 µg/mL), and Candida albicans (13.5 mm; 0.195 µg/mL). Reaction mechanism determination indicated that after ZnCexFe2−xO4; X = 0.06 treatment, morphological differences in S. aureus were apparent with complete lysis of bacterial cells, a concomitant decrease in the viable number, and the growth of biofilm was inhibited. The combination of Eb with ZFO or ZnCexFe2−XO4 with γ-radiation exposure showed marked anti-proliferative efficacy in both cell lines, through modulating the oxidant/antioxidant machinery imbalance, restoring the fine-tuning of redox status, and promoting an anti-inflammatory milieu to prevent cancer progression, which may be a valuable therapeutic approach to cancer therapy and as a promising antimicrobial agent to reduce the pathogenic potential of the invading microbes.

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Section: Resultsmentioning

confidence: 70%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Influence of Ce3+ Substitution on Antimicrobial and Antibiofilm Properties of ZnCexFe2−xO4 Nanoparticles (X = 0.0, 0.02, 0.04, 0.06, and 0.08) Conjugated with Ebselen and Its Role Subsidised with γ-Radiation in Mitigating Human TNBC and Colorectal Adenocarcinoma Proliferation In Vitro

Abdel-Rafei

Thabet

Maksoud

et al. 2021

IJMS

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Gamma radiation‐induced synthesis of polyaniline/CuWO₄ nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

Abdel Maksoud,

Ghobashy,

Aly

et al. 2024

Applied Organom Chemis

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The release of cobalt‐60 and cesium‐137 in the environment is considered dangerous pollutants. In this concern, the present work deals with gamma radiation‐induced synthesis of novel polyaniline/CuWO4 (PANi/CWO) nanocomposite adsorbent and estimating its potential adsorption capacity for cobalt‐60 and cesium‐137 from aqueous solution. The crystallite size of pure CWO NPs and PANi/CWO nanocomposite is found in the nanoscale range. Also, SEM images and XRD results confirmed the successful preparation of PANi/CWO nanocomposite. Further, the elemental mapping images proved that all the investigated elements were homogeneously distributed over the PANi/CWO nanocomposite. Besides, the adsorption experiments were conducted separately to investigate the adsorption behavior of cobalt‐60 and cesium‐137 by PANi/CWO nanocomposite. Adsorption processes have also been performed, and numerous factors, including medium pH, contact time, initial metal ion concentration, and temperature, have been tested. Batch experiments were done to get the optimum conditions for removing cobalt‐60 and cesium‐137. Four kinetic models were investigated, indicating that the adsorption process of cobalt‐60 and cesium‐137 onto PANi/CWO nanocomposite is controlled by chemisorption and intra‐particle diffusion. Four equilibrium isotherm models were investigated, revealing that the adsorption process is a monolayer and multilayer process on a heterogeneous surface. The (∆Ho) value suggested that this study's removal of cesium and cobalt has an endothermic behavior, whereas the positive (∆So) value proved that the examined system is random. The effect of temperature was investigated, and the calculated thermodynamic parameters indicated that the removal of cobalt‐60 and cesium‐137 by PANi/CWO nanocomposite has an endothermic behavior.

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Tuning the structure, optical, and magnetic properties of nanostructured NiMoO4 by nitrogen plasma treatment

et al. 2022

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Herein, the nitrogen plasma treatment with different time irradiation (0, 90, 120, and 150 min) is used to tune the structure, optical, and magnetic properties of nanostructured NiMoO4 NMO NPs. The XRD patterns revealed that the crystallinity of NMO samples increases with an increase in the N2 plasma exposure time. The notable reduce in this peak’ intensity for the sample at dose of 120 min may be attributed to the energy dissipated in the defect generation. Also, the crystallite size for NMO samples was found in the range (23.9–26.7) nm. Further, EPR is used to evaluate the impact of the treatment duration on the oxygen vacancy density. The total number of spins rises as plasma irradiation duration increases, revealing that the NMO NPs can be used as a dosimeter for plasma irradiation. The optical bandgap ranged from 2.92 eV to 3.24 eV as the N2 plasma treatment duration changed. The saturation magnetization was enhanced with the rise of plasma treatment time. Furthermore, the Hc increases from 16.67 G for untreated NMO NPs to 128.41 G for N2 plasma-treated NMO NPs for 150 min. The resulted optical and magnetic properties of N2 plasma-treated NMO NPs make it candidate material for photocatalysis applications.

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The effect of Ce3+ doping on structural, optical, ferromagnetic resonance, and magnetic properties of ZnFe2O4 nanoparticles

Cited by 27 publications

References 67 publications

Influence of Ce3+ Substitution on Antimicrobial and Antibiofilm Properties of ZnCexFe2−xO4 Nanoparticles (X = 0.0, 0.02, 0.04, 0.06, and 0.08) Conjugated with Ebselen and Its Role Subsidised with γ-Radiation in Mitigating Human TNBC and Colorectal Adenocarcinoma Proliferation In Vitro

Influence of Ce3+ Substitution on Antimicrobial and Antibiofilm Properties of ZnCexFe2−xO4 Nanoparticles (X = 0.0, 0.02, 0.04, 0.06, and 0.08) Conjugated with Ebselen and Its Role Subsidised with γ-Radiation in Mitigating Human TNBC and Colorectal Adenocarcinoma Proliferation In Vitro

Gamma radiation‐induced synthesis of polyaniline/CuWO₄ nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

Tuning the structure, optical, and magnetic properties of nanostructured NiMoO4 by nitrogen plasma treatment

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The effect of Ce3+ doping on structural, optical, ferromagnetic resonance, and magnetic properties of ZnFe2O4 nanoparticles

Cited by 27 publications

References 67 publications

Influence of Ce3+ Substitution on Antimicrobial and Antibiofilm Properties of ZnCexFe2−xO4 Nanoparticles (X = 0.0, 0.02, 0.04, 0.06, and 0.08) Conjugated with Ebselen and Its Role Subsidised with γ-Radiation in Mitigating Human TNBC and Colorectal Adenocarcinoma Proliferation In Vitro

Influence of Ce3+ Substitution on Antimicrobial and Antibiofilm Properties of ZnCexFe2−xO4 Nanoparticles (X = 0.0, 0.02, 0.04, 0.06, and 0.08) Conjugated with Ebselen and Its Role Subsidised with γ-Radiation in Mitigating Human TNBC and Colorectal Adenocarcinoma Proliferation In Vitro

Gamma radiation‐induced synthesis of polyaniline/CuWO4 nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions

Tuning the structure, optical, and magnetic properties of nanostructured NiMoO4 by nitrogen plasma treatment

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Gamma radiation‐induced synthesis of polyaniline/CuWO₄ nanocomposite for potential sorption of cobalt‐60 and cesium‐137 from aqueous solutions