Novel magnetically separable Ag3PO4/MnFe2O4 nanocomposite and its high photocatalytic degradation performance for organic dyes under solar-light irradiation

Abroshan, Eslam; Farhadi, Saeed; Zabardasti, Abedien

doi:10.1016/j.solmat.2018.01.026

Cited by 104 publications

(24 citation statements)

References 61 publications

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“…Recent studies on the coupling of Ag 3 PO 4 with other semiconductors have yielded promising results. Abroshan et al 55 synthesized a Ag 3 PO 4 /MnFe 2 O 4 nanocomposite with 30 wt % of MnFe 2 O 4 . The photocatalytic activity of this nanocomposite was evaluated by the degradation of RhB and methylene blue under light solar irradiation.…”

Section: Resultsmentioning

confidence: 99%

Ag₃PO₄/NiO Composites with Enhanced Photocatalytic Activity under Visible Light

et al. 2020

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Black NiO powders were prepared by a hydrothermal method. Moreover, the visible light-driven Ag 3 PO 4 /NiO photocatalyst composites were successfully synthesized by in situ precipitation method. These samples were structurally characterized by X-ray diffraction and Rietveld refinement. The strong interaction between the phases and the defects in the samples was affected by the formation of the composites, as identified by Fourier transform infrared spectroscopy and Raman spectroscopy. UV–vis diffuse reflectance spectroscopy exhibited enhanced light absorption for all Ag 3 PO 4 /NiO composites, suggesting the effective interaction between the phases. Moreover, field-emission scanning electron microscopy images revealed the presence of NiO microflowers composed of nanoflakes in contact with Ag 3 PO 4 microparticles. The composite with 5% NiO presented enhanced photocatalytic efficiency in comparison with pure Ag 3 PO 4 , degrading 96% of rhodamine B (RhB) dye in just 15 min under visible light; however, the recycling experiments confirmed that the composite with 75% NiO showed superior stability. The recombination of the electron–hole pairs was considered for the measurement of the photoluminescence of the samples. These measurements were performed to evaluate the possible causes for the difference in the photocatalytic responses of the composites. From these experimental results, possible photocatalytic mechanisms for RhB degradation over Ag 3 PO 4 /NiO composites under visible-light irradiation were proposed.

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Section: Resultsmentioning

confidence: 99%

Ag₃PO₄/NiO Composites with Enhanced Photocatalytic Activity under Visible Light

et al. 2020

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“…For example, cobalt ferrites doped with nickel [35], zinc ferrites [36], aluminum doped zinc ferrites [37] and copper ferrites [38] were successfully used for the photocatalytic degradation of several dyes and other pollutants (e.g., nitroaromatic compounds). Few among them have antibacterial activity, too [39], [40]. According to these observations, doped, composite-type ferrites seem to exhibit better catalytic potentials than undoped ones.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (CuII(x)FeII(1-x)FeIII2O4) as Novel Heterogeneous Photo-Fenton Catalysts

2020

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The heterogeneous photo-Fenton type system has huge fame in the field of wastewater treatment due to its reusability and appreciable photoactivity within a wide pH range. This research investigates the synthesis and characterization of iron(II) doped copper ferrite (CuII(x)FeII(1-x)FeIII2O4 nanoparticles (NPs) and their photocatalytic applications for the degradation of methylene blue (MB) as a model dye. The NPs were prepared via simple co-precipitation technique and calcination. The NPs were characterized by using Raman spectroscopy, X-ray diffractometry (XRD), scanning electron microscopy (SEM), and diffuse reflectance spectroscopy (DRS). SEM reveals the structural change from the spherical-like particles into needle-like fine particles as the consequence of the increasing ratio of copper(II) in the ferrites, accompanied by the decrease of the optical band-gap energies from 2.02 to 1.25 eV. The three major determinants of heterogeneous photo-Fenton system, namely NPs concentration, hydrogen peroxide concentration and pH, on the photocatalytic degradation of MB were studied. The reusability of NPs was found to be continuously increasing during 4 cycles. It was concluded that iron(II) doped copper ferrites, due to their favorable band-gap energies and peculiar structures, exhibit a strong potential for photocatalytic-degradation of dyes, for example, MB.

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“…Recently, the spinel-type bimetal oxide MnFe 2 O 4 nanoparticles have been intensively investigated as photo-Fenton catalysts for the degradation of organic pollutants in wastewater [ 1 ], mainly owing to their perfect chemical stability, efficient visible light response, and good catalytic performance [ 2 , 3 ]. However, pure MnFe 2 O 4 does not demonstrate enough efficiency under visible light irradiation, because of its low conductivity, easy aggregation, and quick recombination of photo-generated electron-hole pairs [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

The Efficient Photocatalytic Degradation of Organic Pollutants on the MnFe2O4/BGA Composite under Visible Light

Jiang

Lian

2021

Nanomaterials

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The MnFe2O4/BGA (boron-doped graphene aerogel) composite was prepared by hydrothermal treatment of MnFe2O4 particles, boric acid, and graphene oxide. When applied as a photo-Fenton catalyst for the degradation of rhodamine B, the MnFe2O4/BGA composite yielded a degradation efficiency much higher than the sum of those of individual MnFe2O4 and BGA under identical experimental conditions, indicating a strong synergetic effect established between MnFe2O4 and BGA. The catalytic degradation of rhodamine B was proved to follow pseudo first-order kinetics, and the apparent reaction rate constant on the MnFe2O4/BGA composite was calculated to be three- and seven-fold that on BGA and MnFe2O4, respectively. Moreover, the MnFe2O4/BGA composite also demonstrated good reusability and could be reused for four cycles without obvious loss of photocatalytic activity.

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Novel magnetically separable Ag3PO4/MnFe2O4 nanocomposite and its high photocatalytic degradation performance for organic dyes under solar-light irradiation

Cited by 104 publications

References 61 publications

Ag₃PO₄/NiO Composites with Enhanced Photocatalytic Activity under Visible Light

Ag₃PO₄/NiO Composites with Enhanced Photocatalytic Activity under Visible Light

Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (CuII(x)FeII(1-x)FeIII2O4) as Novel Heterogeneous Photo-Fenton Catalysts

The Efficient Photocatalytic Degradation of Organic Pollutants on the MnFe2O4/BGA Composite under Visible Light

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Novel magnetically separable Ag3PO4/MnFe2O4 nanocomposite and its high photocatalytic degradation performance for organic dyes under solar-light irradiation

Cited by 104 publications

References 61 publications

Ag3PO4/NiO Composites with Enhanced Photocatalytic Activity under Visible Light

Ag3PO4/NiO Composites with Enhanced Photocatalytic Activity under Visible Light

Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (CuII(x)FeII(1-x)FeIII2O4) as Novel Heterogeneous Photo-Fenton Catalysts

The Efficient Photocatalytic Degradation of Organic Pollutants on the MnFe2O4/BGA Composite under Visible Light

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Ag₃PO₄/NiO Composites with Enhanced Photocatalytic Activity under Visible Light

Ag₃PO₄/NiO Composites with Enhanced Photocatalytic Activity under Visible Light