Synthesis of single-phase superparamagnetic copper ferrite nanoparticles using an optimized coprecipitation method

Masunga, Ngonidzashe; Mamba, Bhekie B.; Getahun, Yohannes; El-Gendy, Ahmed A.; Kefeni, Kebede K.

doi:10.1016/j.mseb.2021.115368

Cited by 37 publications

(11 citation statements)

References 68 publications

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“…The material corresponding to the CuFe 2 O 4 phase (red line) exhibited peaks at 2 θ = 18.44°, 29.98°, 35.67° and 62.49°, which were well correlated to crystallographic planes (111), (220), (311) and (440), with cubic system and spatial group Fd̄ 3 m (ICDD 01-077-0010), confirming the formation of CuFe 2 O 4 with reverse spinel structure, in which Fe 3+ ions are situated in an equivalent way in the tetrahedral and octahedral sites, Cu 2+ is only in octahedral sites. 30,31 In addition, the diffractogram also showed peaks at 2 θ = 38.87° and 48.95° corresponding to the planes (111) and (−202) of CuO with monoclinic system (ICDD 03-065-2309). According to Nikolić, the formation of this impurity may be related to the oxidation of Cu 2+ ions during the synthesis process carried out under atmospheric conditions.…”

Section: Resultsmentioning

confidence: 99%

Tungsten oxide supported on copper ferrite: a novel magnetic acid heterogeneous catalyst for biodiesel production from low quality feedstock

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Tungsten oxide supported on copper ferrite: a novel magnetic acid heterogeneous catalyst for biodiesel production from low quality feedstock

et al. 2022

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“…172 Some of the characteristics that influence nucleation, crystal growth, morphology, and structure include solution pH, precipitation temperature, precipitation speed, and stirring. 166 When the concentration of the product exceeds its solubility value in the reaction fluid, precipitation occurs. Unwanted salts such as nitrates and chlorides are eliminated by water and acetone.…”

Section: Solvothermal Methodmentioning

confidence: 99%

“…By adjusting their concentrations or reaction temperatures, the reduction kinetics may be altered. A selection of softer reductants has been employed to better manage the pace of reduction . Acetates electrostatic stabilizers are noted to be one of these reductants that are often employed as a reducing agent, and other reductants of choice including NaOH, KOH, NH 4 OH, and hydrazine hydrate can also be used to produce SFNs …”

Section: Synthesis Methods For Ferrite-supported Nanocomposite Polymermentioning

confidence: 99%

“…The synthesis begins by dissolving metal salts in an appropriate amount of distilled water to create homogeneous solutions through electromagnetic swirling in an alkaline medium like NH 4 OH . Some of the characteristics that influence nucleation, crystal growth, morphology, and structure include solution pH, precipitation temperature, precipitation speed, and stirring . When the concentration of the product exceeds its solubility value in the reaction fluid, precipitation occurs.…”

Section: Synthesis Methods For Ferrite-supported Nanocomposite Polymermentioning

confidence: 99%

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Ferrite-Supported Nanocomposite Polymers for Emerging Organic and Inorganic Pollutants Removal from Wastewater: A Review

Karthik,

Dhivya Dharshini,

Senthil Kumar

et al. 2023

Ind. Eng. Chem. Res.

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In recent years, organic and inorganic contaminants in wastewater (heavy metals, halides, nutrients, dyes, and pathogenrelated water pollution) have become a major global problem. There were initially fewer toxins, but as a result of fast industrialization and other human activities, they have rapidly risen. In addition to producing a host of health problems and organ system failure in people, these toxins have had a disastrous effect on the ecological balance of plants, animals, and even microbes. On the basis of nanotechnology, several methods for decontaminating water that use nanoadsorbents and/or photocatalysts are being researched. Due to their improved physical and chemical characteristics, several research studies have focused on the elimination of organic and inorganic pollutants using ferritesupported nanocomposite polymers as possible affordable substitutes for currently employed materials. In this review, the toxicity of heavy metals and the different adsorption capabilities of metal-doped ferrites, which are employed to detect the pollutants in wastewater, are discussed in detail. Also, it provides various synthesis methods to produce ferrite-supported polymer-based nanocomposites and a current review of them with a special emphasis on their exceptional ability to remove organic and inorganic pollutants from wastewater. As a result, ferrite-supported polymer-based nanocomposites, which are also less expensive and swellable, can act as effective adsorbents for the removal of both organic and inorganic pollutants. It has outstanding performance for sizes between 10 and 30 nm.

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“…Regardless of its distinguished properties and its favorable application in different fields, a limited number of articles are found in the literature. Till to date, copper ferrite has been effectively prepared by the solvothermal [19], coprecipitation [20], hydrothermal [21], and sol-gel combustion and microwave-assisted combustion method [22].…”

Section: Introductionmentioning

confidence: 99%

Reduced Graphene Oxide‐Tailored CuFe₂O₄ Nanoparticles as an Electrode Material for High‐Performance Supercapacitors

Mary

Vijaya

Nair

et al. 2022

Journal of Nanomaterials

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Transition metal oxide-based magnetic nanocomposites attract great attention due to their unique properties and applications in the field of energy storage. Herein, we present a facile microwave procedure for the synthesis of CuFe2O4 (CF) and CuFe2O4 incorporated with reduced graphene oxide CuFe2O4/rGO (CG) as potential electrode materials for hybrid supercapacitor. The structure and morphology of CF and CG nanoparticles are examined. The electrochemical performance is studied in 6 M aqueous KOH electrolyte using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS) techniques. The attractive CG nanocomposite exhibits high specific capacity of 800 C/g at a current density of 2 A/g and better cycling stability when compared to pure CF, due to the formation of nanostructure composed of ferrite nanoparticles homogeneously incorporated onto rGO sheets. Furthermore, the practicability of CG electrode is investigated by the fabrication of CG and activated carbon. The hybrid supercapacitor device shows excellent electrochemical performance with specific energy of 18.3 Wh/kg and a specific power of 455 W/kg. It is noteworthy that the cyclic stability is excellent with a capacity retention of ~98% after 3000 cycles manifesting the superiority of CG electrode. The proposed device demonstrates the potential to fabricate other metal oxides with activated carbon via a facile synthesis method for promoting application in energy storage materials and promoting new opportunities of binary nanocomposite.

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Synthesis of single-phase superparamagnetic copper ferrite nanoparticles using an optimized coprecipitation method

Cited by 37 publications

References 68 publications

Tungsten oxide supported on copper ferrite: a novel magnetic acid heterogeneous catalyst for biodiesel production from low quality feedstock

Tungsten oxide supported on copper ferrite: a novel magnetic acid heterogeneous catalyst for biodiesel production from low quality feedstock

Ferrite-Supported Nanocomposite Polymers for Emerging Organic and Inorganic Pollutants Removal from Wastewater: A Review

Reduced Graphene Oxide‐Tailored CuFe₂O₄ Nanoparticles as an Electrode Material for High‐Performance Supercapacitors

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Synthesis of single-phase superparamagnetic copper ferrite nanoparticles using an optimized coprecipitation method

Cited by 37 publications

References 68 publications

Tungsten oxide supported on copper ferrite: a novel magnetic acid heterogeneous catalyst for biodiesel production from low quality feedstock

Tungsten oxide supported on copper ferrite: a novel magnetic acid heterogeneous catalyst for biodiesel production from low quality feedstock

Ferrite-Supported Nanocomposite Polymers for Emerging Organic and Inorganic Pollutants Removal from Wastewater: A Review

Reduced Graphene Oxide‐Tailored CuFe2O4 Nanoparticles as an Electrode Material for High‐Performance Supercapacitors

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Product

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Reduced Graphene Oxide‐Tailored CuFe₂O₄ Nanoparticles as an Electrode Material for High‐Performance Supercapacitors