Ferrites Obtained by Sol-Gel Method

Shirsath, Sagar E.; Wang, Danyang; Jadhav, Santosh S.; Mane, Maheshkumar L.; Li, Sean

doi:10.1007/978-3-319-32101-1_125

Cited by 92 publications

(61 citation statements)

References 80 publications

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“…The majority of the Fe 3+ occupied the octahedral sites (B-sublattice position) with few at the tetrahedral sites (Asublattice position). Approximately 70-84% of the Mn 3+ occupied the A-sites and 30-16% was distributed on the B-sites consistent with the preferential occupation at the tetrahedral sites [22].…”

Section: Structural Analyses Of Cdmznsfssupporting

confidence: 53%

Magnetic properties, anticancer and antibacterial effectiveness of sonochemically produced Ce3+/Dy3+ co-activated Mn-Zn nanospinel ferrites

Almessiere

Slimani

Rehman

et al. 2020

Preprint

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Some new types of Ce3+ and Dy3+ co-doped manganese-zinc nanospinel ferrites (CDMZNSFs) of the form (Mn0.5Zn0.5)[Fe2 − 2xCexDyx]O4 (with 0.0 ≤ x ≤ 0.1) were sonochemically produced and characterized. The structure, morphology, optical and magnetic behaviors of these NSFs were determined as a function of co-dopant (Ce3+ and Dy3+) contents. In addition, the bactericidal (on the gram-positive and gram-negative bacterial strains) and anti-cancerous effectiveness of these NSFs were assessed. The cancer cells' growth inhibitory action of these NSFs was tested against both normal (HEK-293) and cancerous (HCT-116) human cells. The direct optical band gap energies of the studied NSFs were ranged from 1.54 to 1.85 eV. The measured hysteresis loop and temperature-dependent magnetization of the NSFs disclosed a phase transformation from the superparamagnetic (SPM) at room temperature (RT) to ferromagnetic (FM) below the blocking temperature (TB). The saturation magnetization and TB were decreased with the increase in co-dopant contents. After 48 h of treatment of the cancerous cells with the NSFs, their population was significantly dropped as shown by the MTT assay, indicating the selective inhibition of the cancer cells growth by the proposed NSFs. Conversely, the non-cancerous cells (HEK-293) population remained unaffected. The IC50 values of the NSFs-treated cancerous cells (HCT-116) were in the range of 0.74–2.35 µg/mL. The results of the MIC and MBC assays revealed the reasonable antibacterial efficacy (growth inhibitory activity) of these NSFs when tested against the E. coli and S. aureus bacterial strains. It is established that the proposed Ce3+/Dy3+ co-activated CDMZNSFs may be beneficial for the anti-cancerous and bactericidal applications.

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Section: Structural Analyses Of Cdmznsfssupporting

confidence: 53%

Magnetic properties, anticancer and antibacterial effectiveness of sonochemically produced Ce3+/Dy3+ co-activated Mn-Zn nanospinel ferrites

Almessiere

Slimani

Rehman

et al. 2020

Preprint

Self Cite

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“…Co-precipitation method was used to prepare the samples which we believed that the powders obtained by this technique have good homogeneity and fine grain. The method is a relatively low cost method as it is cheaper over other ''solution'' methods, such as sol gel, spray drying and freeze drying [26,27].…”

Section: Introductionmentioning

confidence: 99%

Carbon nanofibers addition on transport and superconducting properties of bulk YBa2Cu3O7−δ material prepared via co-precipitation

Khalid

Kechik

Baharuddin

et al. 2020

J Mater Sci: Mater Electron

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The effects of carbon nanofibers addition on transport and superconducting properties of YBa2Cu3O7−δ (Y-123) superconductor were studied. Y-123 was prepared using co-precipitation method for good quality bulk of high temperature superconducting material. Carbon nanofibers with 0.2–0.8 wt% were added into Y-123 superconductors. The samples were characterized using electrical resistance measurement for critical temperature (Tc) and critical current density (Jc), powder X-ray diffraction, scanning electron microscopy and energy-dispersive X-ray analysis. Most of the samples indicated a dominant Y-123 phase of an orthorhombic structure with a minor phase of BaCO3 and Y-124. Onset critical temperature was found to decrease from 90.5 to 80 K with increasing of carbon nanofibers concentration. The Jc for pure sample is 11 A/cm2 at 30 K while the Jc of sample with 0.4 wt% carbon nanofibers is 830 A/cm2 at 30 K. Introduction of carbon nanofibers enhanced Jc significantly. However, further addition of carbon nanofibers in Y-123 superconductor caused degradation in Jc.

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“…19−21 Among various chemical synthesis approaches, the sol–gel combustion method has various advantages such as a rapid synthesis approach, formation of high-purity product, homogeneous composition, stabilization of metastable phases, low energy consumption, and a simple, economic, and scalable synthesis method. 22,23…”

Section: Introductionmentioning

confidence: 99%

NiFe₂O₄ Nanoparticles Synthesized by Dextrin from Corn-Mediated Sol–Gel Combustion Method and Its Polypropylene Nanocomposites Engineered with Reduced Graphene Oxide for the Reduction of Electromagnetic Pollution

et al. 2019

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In this work, nickel ferrite (NiFe2O4) nanoparticles were synthesized by dextrin from corn-mediated sol–gel combustion method and were annealed at 600, 800, and 1000 °C. The structural and physical characteristics of prepared nanoparticles were studied in detail. The average crystallite size was 20.6, 34.5, and 68.6 nm for NiFe2O4 nanoparticles annealed at 600 °C (NFD@600), 800 °C (NFD@800), and 1000 °C (NFD@1000), respectively. The electromagnetic interference shielding performance of prepared nanocomposites of NiFe2O4 nanoparticles (NFD@600 or NFD@800 or NFD@1000) in polypropylene (PP) matrix engineered with reduced graphene oxide (rGO) have been investigated; the results indicated that the prepared nanocomposites consisted of smaller-sized nickel ferrite nanoparticles exhibited excellent electromagnetic interference (EMI) shielding characteristics. The total EMI shielding effectiveness (SET) for the prepared nanocomposites have been noticed to be 45.56, 36.43, and 35.71 dB for NFD@600-rGO-PP, NFD@800-rGO-PP, and NFD@1000-rGO-PP nanocomposites, respectively, at the thickness of 2 mm in microwave X-band range (8.2–12.4 GHz). The evaluated values of specific EMI shielding effectiveness (SSE) were 38.81, 32.79, and 31.73 dB·cm3/g, and the absolute EMI shielding effectiveness (SSE/t) values were 388.1, 327.9, and 317.3 dB·cm2/g for NFD@600-rGO-PP, NFD@800-rGO-PP, and NFD@1000-rGO-PP, respectively. The prepared lightweight and flexible sheets can be considered useful nanocomposites against electromagnetic radiation pollution.

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Ferrites Obtained by Sol-Gel Method

Cited by 92 publications

References 80 publications

Magnetic properties, anticancer and antibacterial effectiveness of sonochemically produced Ce3+/Dy3+ co-activated Mn-Zn nanospinel ferrites

Magnetic properties, anticancer and antibacterial effectiveness of sonochemically produced Ce3+/Dy3+ co-activated Mn-Zn nanospinel ferrites

Carbon nanofibers addition on transport and superconducting properties of bulk YBa2Cu3O7−δ material prepared via co-precipitation

NiFe₂O₄ Nanoparticles Synthesized by Dextrin from Corn-Mediated Sol–Gel Combustion Method and Its Polypropylene Nanocomposites Engineered with Reduced Graphene Oxide for the Reduction of Electromagnetic Pollution

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Ferrites Obtained by Sol-Gel Method

Cited by 92 publications

References 80 publications

Magnetic properties, anticancer and antibacterial effectiveness of sonochemically produced Ce3+/Dy3+ co-activated Mn-Zn nanospinel ferrites

Magnetic properties, anticancer and antibacterial effectiveness of sonochemically produced Ce3+/Dy3+ co-activated Mn-Zn nanospinel ferrites

Carbon nanofibers addition on transport and superconducting properties of bulk YBa2Cu3O7−δ material prepared via co-precipitation

NiFe2O4 Nanoparticles Synthesized by Dextrin from Corn-Mediated Sol–Gel Combustion Method and Its Polypropylene Nanocomposites Engineered with Reduced Graphene Oxide for the Reduction of Electromagnetic Pollution

Contact Info

Product

Resources

About

NiFe₂O₄ Nanoparticles Synthesized by Dextrin from Corn-Mediated Sol–Gel Combustion Method and Its Polypropylene Nanocomposites Engineered with Reduced Graphene Oxide for the Reduction of Electromagnetic Pollution