Preparation and application of copper ferrite nanoparticles for degradation of methyl orange

Vosoughifar, Mohammad

doi:10.1007/s10854-016-5133-x

Cited by 19 publications

(9 citation statements)

References 26 publications

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“…In addition, they have various technological applications such as energy storage devices [4], magnetic storage media [5], spintronic and electromagnetic devices [6; 7]. Besides, ferrites were used as catalysts for photocatalytic degradation of organic matter [8,9,10], oxidation of dimethyl ether [11] and mercury [12], and reduction of 4-nitrophenol [13]. The spinel structure of ferrites provides additional sites for the catalytic reaction, which leads to an increase in the efficiency of the photocatalytic decomposition [14,15].…”

Section: Introductionmentioning

confidence: 99%

Copper Ferrite Nanoparticles Synthesized Using Anion Exchange Resin: Influence of Synthesis Parameters on the Cubic Phase Stability

Сайкова¹,

Pavlikov²,

Karpov³

et al. 2023

Preprint

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Copper ferrite attracts a lot of interest from researchers as a material with unique magnetic, optical, catalytic and structural properties. In particular, the magnetic properties of this material are structurally sensitive and can be tuned by changing the distribution of Cu and Fe cations in octahedral and tetrahedral positions by controlling synthesis parameters. In this study, we propose a new simple and convenient method for the synthesis of copper ferrite nanoparticles using a strongly basic anion exchange resin in OH form. The effect and possible mechanism of polysaccharides addition on the elemental composition, yield and particle size of CuFe2O4 is investigated and discussed. It is shown that anion exchange resin precipitation leads to a mixture of unstable at standard temperature cubic (c-CuFe2O4) and stable tetragonal (t-CuFe2O4) phases. The effect of the reaction conditions on the c-CuFe2O4 stability is studied by temperature-dependent XRD measurements and discussed in terms of the cations distribution, Jahn−Teller distortion and Cu2+ and oxygen vacancies in the copper ferrite lattice. The obtained differences in the values of saturation magnetization and the coercive force of prepared samples are explained with a reference to variations in the particle sizes and the structural characteristics of copper ferrite.

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Section: Introductionmentioning

confidence: 99%

Copper Ferrite Nanoparticles Synthesized Using Anion Exchange Resin: Influence of Synthesis Parameters on the Cubic Phase Stability

Сайкова¹,

Pavlikov²,

Karpov³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…They also have various technological applications such as energy storage devices [ 4 ], magnetic storage media [ 5 ], and spintronic and electromagnetic devices [ 6 , 7 ]. Furthermore, ferrites have been used as catalysts for the photocatalytic degradation of organic matter [ 8 , 9 , 10 ], oxidation of dimethyl ether [ 11 ] and mercury [ 12 ], and reduction of 4-nitrophenol [ 13 ]. The spinel structure of ferrites provides additional sites for the catalytic reaction, leading to an increase in the efficiency of photocatalytic decomposition [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Copper Ferrite Nanoparticles Synthesized Using Anion-Exchange Resin: Influence of Synthesis Parameters on the Cubic Phase Stability

et al. 2023

View full text Add to dashboard Cite

Copper ferrite is of great interest to researchers as a material with unique magnetic, optical, catalytic, and structural properties. In particular, the magnetic properties of this material are structurally sensitive and can be tuned by changing the distribution of Cu and Fe cations in octahedral and tetrahedral positions by controlling the synthesis parameters. In this study, we propose a new, simple, and convenient method for the synthesis of copper ferrite nanoparticles using a strongly basic anion-exchange resin in the OH form. The effect and possible mechanism of polysaccharide addition on the elemental composition, yield, and particle size of CuFe2O4 are investigated and discussed. It is shown that anion-exchange resin precipitation leads to a mixture of unstable cubic (c-CuFe2O4) phases at standard temperature and stable tetragonal (t-CuFe2O4) phases. The effect of reaction conditions on the stability of c-CuFe2O4 is studied by temperature-dependent XRD measurements and discussed in terms of cation distribution, cooperative Jahn–Teller distortion, and Cu2+ and oxygen vacancies in the copper ferrite lattice. The observed differences in the values of the saturation magnetization and coercivity of the prepared samples are explained in terms of variations in the particle size and structural properties of copper ferrite.

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“…Subsequently, the thermally induced transformations of the bimetal Fe−Cu oxalate sample were studied by in‐situ XRD, ex‐situ TMS and N 2 adsorption at 77.4 K. The formed solid solution of the Fe−Cu oxalate can serve as a precursor for the preparation of amorphous Fe−Cu oxides or copper ferrite particles at relatively low temperatures, especially if compared to the classical solid‐state reaction approaches. Recently, the copper ferrite particles were studied for the use in a number of applications, e. g. water treatment, [40,41] gas sensors, [42–45] biomedicine, [46] energy storage [47–49] and catalysis (e. g. degradation of dyes [50–53] and other organic compounds, [54–57] or water gas shift [58] ). Additionally, the Fe−Cu materials were also studied in other catalytic reactions, e. g. the hydrogenation of CO 2 [59–62] …”

Section: Introductionmentioning

confidence: 99%

Co‐Precipitation of Fe−Cu Bimetal Oxalates in an Aqueous Solution and Their Thermally Induced Decomposition

et al. 2021

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This work focuses on the preparation of bimetal Fe−Cu oxalates by a co‐precipitation reaction in an aqueous solution and subsequently on their thermally induced decomposition. The formation of solid solutions of Fe−Cu oxalates with various Fe/Cu ratios was studied by energy dispersive X‐ray analysis, X‐ray powder diffraction, transmission 57Fe Mössbauer spectroscopy, and scanning electron microscopy. The results suggest that the bimetal Fe−Cu oxalate precipitated in a structure similar to β‐FeC2O4 ⋅ 2H2O. The maximum relative amount of Cu obtained within the bimetal oxalate was approximately 40 %. However, the single bimetal phase composition was obtained only for a limited range of Fe/Cu ratios. The Fe‐rich samples contained also β‐FeC2O4 ⋅ 2H2O, while the Cu‐rich samples were predominantly composed of CuC2O4 ⋅ nH2O and contained much lower amounts of Fe than expected. The thermal decomposition of the prepared oxalate with the nominal Fe/Cu ratio of 65/35 was studied by in‐situ X‐ray powder diffraction in combination with ex‐situ Mössbauer spectroscopy. The mixing of both metals at the molecular level allowed the preparation of copper ferrite particles at a relatively low temperature of 470 °C.

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Preparation and application of copper ferrite nanoparticles for degradation of methyl orange

Cited by 19 publications

References 26 publications

Copper Ferrite Nanoparticles Synthesized Using Anion Exchange Resin: Influence of Synthesis Parameters on the Cubic Phase Stability

Copper Ferrite Nanoparticles Synthesized Using Anion Exchange Resin: Influence of Synthesis Parameters on the Cubic Phase Stability

Copper Ferrite Nanoparticles Synthesized Using Anion-Exchange Resin: Influence of Synthesis Parameters on the Cubic Phase Stability

Co‐Precipitation of Fe−Cu Bimetal Oxalates in an Aqueous Solution and Their Thermally Induced Decomposition

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