Synthesis and magnetic properties of octahedral Fe3O4 via a one-pot hydrothermal route

Wei, Lei; Liu, Yongsheng; Xu, Juan; Du, Wenlong; Yang, Jie; Zhou, Tao; Lin, Jia

doi:10.1016/j.physleta.2016.09.018

Cited by 71 publications

(36 citation statements)

References 45 publications

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“…In this work, the presence of M-O was detected at 459 cm −1 for the stretching mode at the octahedral position ( Husain et al, 2019 ) and 704 cm −1 at the tetrahedral position. Based on the previous work, the stretching mode at the tetrahedral position was in the range of 560 to 580 cm −1 ( Lei et al, 2017 ). The displacement was predicted as the effect of the Co 2+ ions that replaced the Fe 3+ ions.…”

Section: Resultsmentioning

confidence: 91%

Excellent antimicrobial performance of co-doped magnetite double-layered ferrofluids fabricated from natural sand

Taufiq

Saputro

Yuliantika

et al. 2020

Journal of King Saud University - Science

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The preparation of Co-doped magnetite ferrofluids from natural sand was developed using a double-layer technique. The Co-doped magnetite nanoparticles formed a spinel phase with lattice parameters in the range of 8.355–8.422 Å and tended to agglomerate with the particle sizes of 7–12 nm. The presence of the first and second layers from oleic acid and DMSO was detected by the infrared spectrum as well as the olive oil used as a carrier liquid. The saturation magnetization of the superparamagnetic samples decreased from 24.4 to 4.8 emu/g with decreasing Co 2+ composition. The particle size and electrostatic forces between the magnetic particles and the microbes played an essential role in inhibiting microbial growth. Interestingly, the increasing Co 2+ composition enhanced the superior performance of the ferrofluids against E. coli, S. aureus, B. subtilis, and C. albicans . With additional extensive investigation, we believe that the prepared Co-doped magnetite double-layered ferrofluids from natural sand with superior antimicrobial performance can be new significant antimicrobial agents.

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Section: Resultsmentioning

confidence: 91%

Excellent antimicrobial performance of co-doped magnetite double-layered ferrofluids fabricated from natural sand

Taufiq

Saputro

Yuliantika

et al. 2020

Journal of King Saud University - Science

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“…The product was washed several times with deionized water and absolute ethanol. Powder like precipitate was treated in vacuum oven at 40 °C for 12 hours [27].…”

Section: A 2 Synthesis Of Magnetic Fe3o4 Nanostructurementioning

confidence: 99%

“…When the XRD pattern of Fe3O4 magnetic nanoparticles was examined, it was seen that the characteristic peak positions found for the spinel structures in the Fe3O4 structures. It has been found that Fe3O4 samples are pure, in other words, they are not contaminated, and they do not contain trace of other elements [27,29]. NiO@Fe3O4 magnetic nanoflowers were obtained by NiO with Fe3O4.…”

Section: A Characterization Of Nio Fe3o4 and Nio@fe3o4mentioning

confidence: 99%

Catalytic Properties of Hydrothermally Synthesized Flower-like NiO@Fe3O4

Yetim

2020

Düzce Üniversitesi Bilim Ve Teknoloji Dergisi

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In this study, flower-like NiO structures were synthesized by hydrothermal method. Then, Fe3O4 was doped on NiO that NiO structures gain magnetic properties. TEM (Transmission Electron Microscopy) and SEM (Scanning Electron Microscopy) were used to assess the morphology of the NiO structures. XRD (X-ray Diffraction) was used to evaluate the crystal structures of the NiO structures. Magnetic properties of the NiO structures were investigated using VSM (Vibrating Sample Magnetometry). Catalysis properties of the produced structures were assessed use of products as catalyst in the reduction of 4-nitrophenol (4-NP) was examined. Especially NiO and Fe3O4 were found to exhibit excellent catalytic performance for nitrophenol reduction, while NiO@Fe3O4 magnetic microflowers were found to exhibit very low catalytic activity.

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“…Among these factors, solvent polarity, which is defined as the sum of the interaction of solvent and reactants including Coulomb force, induction force, dispersion force, H-bond, and charge transport force, has the key role to describe the solvation property of solvent in SFM. [ 50 ] In the case of SFNs, different solvents such as water,[ 51 52 ] polyols,[ 31 53 ] and oleylamine (OAm)[ 54 55 ] and mixed solvents have often been employed as solvents because of their compatible properties with common reactants. Among them, polyols (such as ethylene glycol [EG] with strong reducing capability and a relatively high bp) have been also extensively investigated as both solvent and reducing agent to provide monodisperse SFNs.…”

Section: The Mechanism For the Formation Of Spinel Ferrite Nanoparticmentioning

confidence: 99%

Solvothermal synthesis of magnetic spinel ferrites

2018

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At present, solvothermal fabrication method has widely been applied in the synthesis of spinel ferrite nanoparticles (SFNs), which is mainly because of its great advantages such as precise control over size, shape distribution, and high crystallinity that do not require postannealing treatment. Among various SFNs, Fe3O4 nanoparticles have attracted tremendous attention because of their favorable physical and structural properties which are advantageous, especially in biomedical applications, among which the vast application of these materials as targeted drug delivery systems, hyperthermia, and imaging agents in cancer therapy can be mentioned. The main focus of this study is to present an introduction to solvothermal method and key synthesis parameters of SFNs through this synthesis route. Moreover, most recent progress on the potential applications of Fe3O4 nanoparticles as the most important compound among the spinel ferrites family members is discussed.

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Synthesis and magnetic properties of octahedral Fe3O4 via a one-pot hydrothermal route

Cited by 71 publications

References 45 publications

Excellent antimicrobial performance of co-doped magnetite double-layered ferrofluids fabricated from natural sand

Excellent antimicrobial performance of co-doped magnetite double-layered ferrofluids fabricated from natural sand

Catalytic Properties of Hydrothermally Synthesized Flower-like NiO@Fe3O4

Solvothermal synthesis of magnetic spinel ferrites

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