Preparation and characterization of MgFe 2 O 4 nanocrystallites via PVA sol-gel route

Feng, Yuxiang; Li, Shanshan; Zheng, Yali; Yi, Ziwei; He, Yanyan; Xu, Yebin

doi:10.1016/j.jallcom.2016.12.432

Cited by 45 publications

(22 citation statements)

References 41 publications

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“…In Table 2 are summarized the Raman band frequencies of the ash samples in this work, where those of calcium [6][7][8], magnesium [9,10], and sodium [11] ferrites reported previously are also presented for a comparison. It is evidently exhibited in the table that all the ash samples contain CaFe 2 O 4 and/or Ca 2 Fe 2 O 5 ; however, it is difficult to distinguish the two calcium ferrites based only on the Raman bands detected in this region because of no significant differences in Raman bands between the two ferrites [6][7][8].…”

Section: Elements In Ash Samplesmentioning

confidence: 99%

Mössbauer and Raman characterization of ash produced by burning ancient buried Japanese cedar and investigation for its unusual color tone

Yamauchi

Kurimoto

Takayama

et al. 2020

J Radioanal Nucl Chem

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Mössbauer and Raman spectroscopic characterization of colored ash samples made by combustion of ancient buried Japanese cedar (Cryptomeria japonica) was carried out, and the factors governing the color tones were investigated mainly in terms of the chemical species of Fe. The ash samples displayed various unusual colors, depending clearly on the individual ancient tree and the part of it. Some of Mössbauer spectra of the ash samples showed magnetic hyperfine splittings due to internal magnetic fields. The Mössbauer and Raman spectra suggested that the primary Fe-containing species in all the ash samples was calcium ferrite, Ca2Fe2O5.

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Section: Elements In Ash Samplesmentioning

confidence: 99%

Mössbauer and Raman characterization of ash produced by burning ancient buried Japanese cedar and investigation for its unusual color tone

Yamauchi

Kurimoto

Takayama

et al. 2020

J Radioanal Nucl Chem

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“…Among the diverse range of spinel ferrites, magnesium ferrite MgFe 2 O 4 abbreviated MFO is a bi-oxide with inverse spinel structure and is a soft magnetic n-type semiconductor. MFO semiconductor is a promising UV-visible absorber due to its narrow band gap and its magnetic nature which helps its separation from aqueous systems [26][27][28][29]. Furthermore, MFO has good photostability in alkaline or acidic solutions, rendering it a good candidate for environmental remediation by utilizing active surface species (H + , • OH and • O 2− ), especially in photocatalytic degradation processes.…”

Section: Introductionmentioning

confidence: 99%

MgFe2O4/CNTs nanocomposite: synthesis, characterization, and photocatalytic activity

et al. 2020

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Magnesium ferrite is a visible light absorber, and when combined with multiwall carbon nanotubes (MWCNTs), it can lead to low electron-hole recombination rates, thus improving its photocatalytic activity. In this work, a novel MgFe 2 O 4 /CNTs nanocomposite catalyst has been synthesized via anchoring MgFe 2 O 4 nanoparticles onto MWCNTs surface by a sol-gel and microwave-assisted route. The prepared catalyst was characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning and transmission electron microscopy, energy-dispersive x-ray analysis and vibrating scanning magnetometry. MgFe 2 O 4 nanoparticles showed a cubic inverse spinel ferrite structure, while MgFe 2 O 4 /CNTs nanohybrids showed combinations of both structures. Morphology studies including Brunauer-Emmett-Teller (BET) analysis confirmed a 40 m 2 g -1 specific surface area with narrow mesoporous size distribution for the MgFe 2 O 4 /CNTs nanocomposite. The photocatalytic performance of the new catalyst was assessed by photodegradation of methylene blue (MB). The experimental results demonstrated that MgFe 2 O 4 /CNTs exhibited strong photocatalytic activity, catalysing the photooxidation of about 98% of MB in 25 minutes under sunlight.

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“…Methods devised for preparation of magnesium ferrite nanocrystallites included the coprecipitation method [19,[25][26][27][28], sol-gel method [20,29], combustion method [30,31], hydrothermal method [32], thermal decomposition method [33], and solvothermal method [34]. Among the methods used to synthesize ferrite nanoparticles, the solution combustion synthesis is favored for its simplicity, short reaction time, and low annealing temperature [35].…”

Section: Introductionmentioning

confidence: 99%

A Facile Synthesis, Characterization, and Photocatalytic Activity of Magnesium Ferrite Nanoparticles via the Solution Combustion Method

Nguyen

Nguyễn

Chu

et al. 2019

Journal of Chemistry

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In this study, we adopted the solution combustion method to synthesize magnesium ferrite (MgFe2O4) using urea as the fuel. Various techniques including TGA, XRD, SEM, TEM, FTIR, UV-Vis DRS, and EDS were employed to characterize the synthesized MgFe2O4 nanoparticles. The XRD analysis revealed that single-phase MgFe2O4 was formed at a calcination temperature of at 500–600°C for 3 hours in the absence of an intermediate phase. TEM analysis also revealed the formation of monodisperse magnesium ferrite nanoparticles, averaged at 30 nm in size. The photocatalytic activity of the synthesized MgFe2O4 nanoparticles against methylene blue dye under visible light was investigated, showing the efficiency of 89.73% after 240 minutes of light irradiation with the presence of H2O2.

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Preparation and characterization of MgFe 2 O 4 nanocrystallites via PVA sol-gel route

Cited by 45 publications

References 41 publications

Mössbauer and Raman characterization of ash produced by burning ancient buried Japanese cedar and investigation for its unusual color tone

Mössbauer and Raman characterization of ash produced by burning ancient buried Japanese cedar and investigation for its unusual color tone

MgFe2O4/CNTs nanocomposite: synthesis, characterization, and photocatalytic activity

A Facile Synthesis, Characterization, and Photocatalytic Activity of Magnesium Ferrite Nanoparticles via the Solution Combustion Method

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