A comprehensive study on the production and photocatalytic activity of copper ferrite nanoparticles synthesized by microwave-assisted combustion method as an effective photocatalyst

Karakaş, Zeynep Karcıoğlu

doi:10.1016/j.jpcs.2022.110927

Cited by 15 publications

(3 citation statements)

References 67 publications

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“…In addition, the absence of any other vibration bands in the spectra indicates that the products produced consist of only cobalt aluminate. The data presented here are also consistent with data presented in some previous studies 43–46 …”

Section: Resultssupporting

confidence: 93%

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The effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave‐assisted combustion method

Karakaş

2022

Coloration Technology

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In this study, the effects on the photocatalytic activities of particles after heat treatment has been applied to cobalt ferrite nanoparticles produced by microwave‐assisted combustion method were observed. The heat treatment applied to the samples was produced with only the microwave effect, at temperatures ranging from 300 to 1000°C. Thermogravimetric analysis was performed on the precursor sample in air atmosphere. During this analysis, the gases released up to 1200°C were identified with a Fourier‐transform infrared (FTIR) spectrometer integrated into a thermogravimetric analysis system. Then, the cobalt ferrite nanoparticles produced with heat treatments applied at various temperatures were used as a photocatalyst to remove the dyestuff content in synthetic wastewaters prepared by using Astrazon Red GTL textile dye by photocatalytic oxidation, and their photocatalytic activities were compared. In these experiments, the operational parameters for photocatalysis processes were applied as 400 rpm for stirring speed, 50 mg/L for initial contaminant concentration, 0.5 g/L for catalyst dosage, 25°C for temperature, and 4400 μW/cm2 for light intensity. As a result of the experiments, it was observed that the crystal structure of the cobalt ferrite nanoparticles produced with the increase of the applied heat treatment temperature improved significantly. The obtained data show a strong relationship between the structural properties of materials and their photocatalytic activities. In addition, it was determined that the dyestuff in the solution was completely degraded in the experiments, and it was determined that all processes were compatible with the pseudo‐first‐order kinetic model.

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Section: Resultssupporting

confidence: 93%

“…The data presented here are also consistent with data presented in some previous studies. [43][44][45][46]…”

Section: Effects On Structural Properties Of the Heat Treatment Tempe...mentioning

confidence: 99%

The effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave‐assisted combustion method

Karakaş

2022

Coloration Technology

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“…Nickel ferrites have ferrimagnetic magnetic properties with high curie temperatures (843 K) [14] and present potential activity towards photocatalytic applications involving the degradation of organic matter. These ferrites have promising potential as photocatalysts due to their ability to produce radicals, especially hydroxyl radicals, which are extremely reactive and may serve as active species in different chemical reactions [15][16][17][18][19]. Several physical-chemistry properties of these materials can be modified through the replacement of atoms in the sublattices, leading to a synergetic effect that surpasses its intrinsic nature while maintaining the simplicity of its production.…”

Section: Introductionmentioning

confidence: 99%

Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties

Diniz Dias de Azevedo,

Morales Torres,

Pereira de Souza

et al. 2024

Catalysts

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Water pollution is a serious worldwide problem. Among its pollutants, dyes that are overused by various types of industries and are resistant to conventional effluent treatments stand out. In this study, mixed copper and nickel ferrites NixCu(1-x)Fe2O4 (x = 0, 0.2, 0.4, 0.6, 0.8 e 1.0), were produced by the EDTA-Citrate complexation method, characterized and applied in photocatalysis with methylene blue (MB) and rhodamine B (RhB) dyes, varying the reaction pH between 2, 6 and 10. The ferrites with the highest percentages of copper had a tetragonal structure, while those with the highest percentages of nickel had a cubic structure, all with inverse spinel and all presenting bandgap values lower than 2 eV. Samples with higher percentages of copper (x = 0 and 0.2) at pH 10 showed degradation of approximately 55% for RhB and 40% for MB. A mixture of MB and RhB was also evaluated, showing a greater removal of methylene blue due to its preferential adsorption on the surface of the material. In this way, mixed copper and nickel ferrites proved promising as catalysts in photocatalytic processes.

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Structural, Optical, Magnetic and Photocatalytic Properties of Zn Doped CoFe₂O₄Decorated Bentonite Nanocomposites

Güner

2023

ChemistrySelect

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The bentonite-Zn doped CoFe 2 O 4 photocatalysts were successfully synthesized for the first time by decorating magnetic Zn x Co 1À x Fe 2 O 4 nanoparticles onto the bentonite surface in order to enhance the photocatalytic performance of Zn doped CoFe 2 O 4 nanoparticles. We tried to thoroughly investigate how changes in Zn 2 + concentration affected the particle size, shape, magnetic properties, optical band gap, and photocatalytic activities of B-Zn x Co 1À x Fe 2 O 4 nanocomposites. The photodegradation of crystal violet (CV), a model reaction under visible light irradiations, was used to assess the photocatalytic activities of the samples. Compared to other samples, the B-Zn x Co 1À x Fe 2 O 4 (x = 0.5) showed the highest photocatalytic activity, which is best matched to the pseudo-first-order kinetic. According to investigations using reactive species capture, the superoxide radicals have the main role in the degrading process, while the hydroxyl radicals and holes have a secondary and minimal effect, respectively.

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A comprehensive study on the production and photocatalytic activity of copper ferrite nanoparticles synthesized by microwave-assisted combustion method as an effective photocatalyst

Cited by 15 publications

References 67 publications

The effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave‐assisted combustion method

The effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave‐assisted combustion method

Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties

Structural, Optical, Magnetic and Photocatalytic Properties of Zn Doped CoFe₂O₄Decorated Bentonite Nanocomposites

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A comprehensive study on the production and photocatalytic activity of copper ferrite nanoparticles synthesized by microwave-assisted combustion method as an effective photocatalyst

Cited by 15 publications

References 67 publications

The effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave‐assisted combustion method

The effects of heat treatment temperatures on photocatalytic activity of cobalt ferrite nanoparticles synthesised by microwave‐assisted combustion method

Dyes Degradation Using Cooper-Nickel Ferrite and Its Tunable Structural and Photocatalytic Properties

Structural, Optical, Magnetic and Photocatalytic Properties of Zn Doped CoFe2O4Decorated Bentonite Nanocomposites

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Product

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Structural, Optical, Magnetic and Photocatalytic Properties of Zn Doped CoFe₂O₄Decorated Bentonite Nanocomposites