Synthesis of magnetic CuFe2O4/Fe2O3 core-shell materials and their application in photo-Fenton-like process with oxalic acid as a radical-producing source

Thi, Thu Uyen Tran; Nguyen, Huu Thinh Pham; Vu, An Nang; Lê, Tiến Khoa

doi:10.1080/21870764.2021.1939241

Cited by 7 publications

(2 citation statements)

References 39 publications

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“…Moreover, table 1 also compares their BET specific surface area, which reveals the role of the synthesis method, especially the influences of heating process on the surface area. In our previous studies, the ferrite materials prepared by annealing at high temperatures often showed restricted surface area (14.33 m 2 g -1 [15] or 1.159 m 2 g -1 [23] ). Interestingly, all three ferrite samples of this work show impressively high specific surface area, varying from 127.72 to 188.04 m 2 g -1 , indicating that the coprecipitation without annealing is appropriate for the synthesis of ferrite adsorbents.…”

Section: Characterization Of Metal Ferritesmentioning

confidence: 99%

Simple synthesis of mesoporous ferrite materials as magnetic adsorbents for phosphate removal

Ngo,

Hoang,

Pham

et al. 2023

Vietnam Journal of Chemistry

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Mesoporous MFe2O4 materials (M = Mn, Cu, and Co) as magnetic adsorbents for phosphate removal were synthesized by a simple coprecipitation method without annealing at high temperatures. Several techniques, including powder X‐ray diffraction, field emission electron scanning microscopy, nitrogen adsorption‐desorption and vibrating sample magnetometry were used to characterize the samples. The effects of M2+ ions on their point of zero charge and their phosphate adsorption capacity were investigated. All three samples consist of nanosized particles with cubic spinel structure and ferromagnetic properties, which allows them to be easily separated from aqueous effluents using a magnet. According to the batch experiments, the adsorption isotherms and the adsorption kinetics for these mesoporous materials are well fitted with the nonlinear Langmuir model and the nonlinear pseudo‐second‐order model, respectively. Among them, CuFe2O4 powder showed the best phosphate adsorption performance with the maximum P adsorption capacity of 27.49 mgP g‐1, which can be assigned to the highest surface area and the high pH value at its point of zero charge.

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Section: Characterization Of Metal Ferritesmentioning

confidence: 99%

Simple synthesis of mesoporous ferrite materials as magnetic adsorbents for phosphate removal

Ngo,

Hoang,

Pham

et al. 2023

Vietnam Journal of Chemistry

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“…This composite was created using a modified chemical process, commonly known as the bottom-up approach in nanotechnology, according to references (Massoud-Sharifi et al, 2019), (Tran Thi et al, 2021). The precursors of the CdS nanocomposite were cadmium chloride hydrate (CdCl 2 .2H 2 O) and thiourea.…”

Section: Magnetic Nanoparticles Of Cufe 2 O 4 Cuo and Cds Immobilize...mentioning

confidence: 99%

Decontamination of Metronidazole Antibiotic – A Novel Nanocomposite-Based Strategy

Mhemid¹,

Saeed²,

Shihab³

2023

J. Ecol. Eng.

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In this study, the synthesis of magnetic nanoparticles (MNPs) employing leaf extract from Alocasiamacrorrhiza was investigated as a reducing agent. CuFe 2 O 4 , CuFe 2 O 4 /CuO, and CuFe 2 O 4 /CuO/CdS made constituted the coreshell of these MNPs, which were stabilized on naturally Ninevite rocks (NRs) to provide a more cost-effective support. Analytical techniques of various methods were used to characterize the MNPs/NR nanocomposite that was produced utilizing eco-friendly methods. Among the methods used were infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and vibrating sample magnetometry (VSM). The antibiotic Metronidazole (MET) was broken down using a potent nanocatalyst made of MNPs in a solar-irradiated batch system. A solarphotocatalytic system was used to investigate the effects of the initial MET concentration, irradiation time, H 2 O 2 concentration, catalyst nanocomposite concentration, and pH solution on MET photodegradation. Artificial neural networks (ANNs) were also used in data modeling to determine which oxidation technique performed the best in certain conditions. This investigation showed that the CuFe 2 O 4 /CuO/CdS magnetic catalyst had the greatest MET removal efficiency of 97% among all MNPs. Moreover, ANN were used to examine data from the photocatalytic oxidation of MET utilizing a CuFe 2 O 4 /CuO/CdS/NRs catalyst. The results revealed that the MNP dose had the highest influence on the photodegradation of MET. The correlation coefficients (R 2 ) for the training regressions, validation, testing, and total data were all 0.999, 0.996, 0.993, and 0.998, respectively.

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Enhanced photocatalytic activity of ZnO thin films with labyrinth-like architecture by thermal-shock-fluorination on novel zinc-coated copper substrate for sustainable applications

Ho,

Le,

Nguyen

et al. 2023

J Aust Ceram Soc

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Synthesis of magnetic CuFe₂O₄/Fe₂O₃ core-shell materials and their application in photo-Fenton-like process with oxalic acid as a radical-producing source

Abstract: Le (2021): Synthesis of magnetic CuFe 2 O 4 /Fe 2 O 3 core-shell materials and their application in photo-Fenton-like process with oxalic acid as a radical-producing source, Journal of Asian Ceramic Societies,

Cited by 7 publications

References 39 publications

Simple synthesis of mesoporous ferrite materials as magnetic adsorbents for phosphate removal

Simple synthesis of mesoporous ferrite materials as magnetic adsorbents for phosphate removal

Decontamination of Metronidazole Antibiotic – A Novel Nanocomposite-Based Strategy

Enhanced photocatalytic activity of ZnO thin films with labyrinth-like architecture by thermal-shock-fluorination on novel zinc-coated copper substrate for sustainable applications

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