Synthesis, characterization and magnetic properties of MFe2O4 (M=Co, Mg, Mn, Ni) nanoparticles using ricin oil as capping agent

Ghercă, Daniel; Pui, Aurel; Cornei, Nicoleta; Cojocariu, Alina Mihaela; Nica, Valentin; Caltun, Ovidiu Florin

doi:10.1016/j.jmmm.2012.06.027

Cited by 85 publications

(26 citation statements)

References 28 publications

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“…In our study, the value of M s for the as-synthesized nanoparticles is lower than that (50 emu/g) for the bulk material. However, compared with the values reported for the similar particle sizes, the present value in the range of 28.8-38.9 emu/g is higher than the values (25.1 emu/g [19] and 25.7 emu/g [20]) reported previously.…”

Section: Resultscontrasting

confidence: 87%

Ethanol-assisted synthesis and adsorption property of flake-like NiFe2O4 nanoparticles

Wang

Ding

et al. 2015

Ceramics International

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Section: Resultscontrasting

confidence: 87%

Ethanol-assisted synthesis and adsorption property of flake-like NiFe2O4 nanoparticles

Wang

Ding

et al. 2015

Ceramics International

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“…From the M-H loop, it can be observed that the spinel Mn 0.5 Co 0.5 Fe 2 O 4 nanoparticles show high saturation magnetization (M s ) justified by the high anisotropy and small dimensions of the grains. The M s value of pure CoFe 2 O 4 is 55.16 ± 24 emu/g, which is lower than that of the earlier reported values, i.e., 59.0 emu/g [8] and 93.9 emu/g (bulk) [46]. The observed difference in the value of M s might be due to particle size, crystalline nature and arrangement of the particles, as well as the nature and composition of the dopant.…”

Section: Photoluminescence Spectroscopycontrasting

confidence: 74%

Role of Mn2+ Doping on Structural, Morphological, and Opto-Magnetic Properties of Spinel Mn x Co1−x Fe2O4 (x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) Nanocatalysts

Manikandan

Durka²,

Antony

2015

J Supercond Nov Magn

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Spinel Mn x Co 1−x Fe 2 O 4 ; x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) nanoparticles were synthesized by ureaassisted auto combustion method using nitrates of Co, Mn and Fe as the starting materials and urea as the fuel. X-ray diffraction (XRD) analysis showed that all composition was found to have a cubic spinel structure. The average crystallite size of the samples was estimated using the Debye-Scherrer formula and was found to be in the range of 22.62 and 36.45 nm. The lattice parameter increased from 8.432 to 8.457Å with increasing the Mn 2+ content, which was determined by Rietveld analysis. High-resolution scanning electron microscopy (HR-SEM) and high-resolution transmission electron microscopy (HR-TEM) analyses were used to study the morphological variation, and the results showed a nanosized particlelike morphology. Energy-dispersive X-ray (EDX) results showed that the composition of the elements was relevant as expected from the synthesis. The bandgap energy of the pure CoFe 2 O 4 was estimated to be 2.33 eV from UV-visible diffuse reflectance spectroscopy (DRS). With the increase of Mn 2+ ion, the bandgap energy increased from 2.35 to 2.42 eV. The magnetic properties of the A. Manikandan ( ) · S. samples were investigated at room temperature by using a vibrating sample magnetometer (VSM). The magnetic hysteresis (M-H) loop confirmed the superparamagnetic nature of pure CoFe 2 O 4 and a weak ferromagnetic behavior of Mn 2+ doped CoFe 2 O 4 samples with specific saturation magnetization in the range of 55.16 ± 24 and 66.92 ± 05 emu/g. All compositions of spinel Mn x Co 1−x Fe 2 O 4 samples were successfully tested as catalyst for the conversion of benzyl alcohol, which has resulted in 62.75 and 92.62 % conversion efficiency of CoFe 2 O 4 and Mn 0.5 Co 0.5 Fe 2 O 4 , respectively.

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“…Green synthesis of chalcogenides nanomaterials using castor oil and its isolate ricinoleic acid as eco-friendly bio-based capping agents have recently been reported [73][74][75][76][77][78][79]. This is environmentally interesting because the use of castor oil and ricinoleic acid as both capping and dispersing agents, eliminate the need for the use of air-sensitive, toxic and expensive chemicals such as trioctylphosphine (TOP), trioctylphosphine oxide (TOPO) and alkyl amines.…”

Section: Green Synthesis Of Nanomaterials Using Castor Oil or Ricinolmentioning

confidence: 99%

“…It is worth noting that the boiling points of castor oil and ricinoleic acid are 586 and 685 K, respectively and thus they are simple to work with since they are liquid at room temperature. Literature reports the high ability of castor oil to prevent agglomeration of the synthesized nanoparticles due to the presence of long-chain hydrophobic moieties, thus forming ultra-small, well dispersed and stable quantum dots for a long period of time [76][77][78][79]. Some of these nanomaterials synthesized using castor oil or ricinoleic acid can be suitable for biological and medical applications because no toxic reagents are used in their preparation [80].…”

Section: Green Synthesis Of Nanomaterials Using Castor Oil or Ricinolmentioning

confidence: 99%

Castor oil as a potential renewable resource for the production of functional materials

Mubofu

2016

Sustain Chem Process

170

124

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Castor oil is increasingly becoming an important bio-based raw material for industrial applications. The oil is nonedible and can be extracted from castor seeds from the castor plant belonging to the family Euphorbiaceae. The oil is a mixture of saturated and unsaturated fatty acid esters linked to a glycerol. The presence of hydroxyl group, a double bond, carboxylic group and a long chain hydrocarbon in ricinoleic acid (a major component of the oil), offer several possibilities of transforming it into variety of materials. The oil is thus a potential alternative to petroleum-based starting chemicals for the production of materials with variety of properties. Despite this huge potential, very little has recently been reviewed on the use of castor oil as a bio-resource in the production of functional materials. This review therefore highlights the potential of castor oil in the production of these diverse materials with their projected global market potential. The review gives the background information of castor oil and its geographical availability, the properties and its uses as bio-based resource for synthesis of various materials. The review further highlights on the use of castor oil or ricinoleic acid as a green capping agent in the synthesis of nanomaterials.

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Synthesis, characterization and magnetic properties of MFe2O4 (M=Co, Mg, Mn, Ni) nanoparticles using ricin oil as capping agent

Cited by 85 publications

References 28 publications

Ethanol-assisted synthesis and adsorption property of flake-like NiFe2O4 nanoparticles

Ethanol-assisted synthesis and adsorption property of flake-like NiFe2O4 nanoparticles

Role of Mn2+ Doping on Structural, Morphological, and Opto-Magnetic Properties of Spinel Mn x Co1−x Fe2O4 (x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) Nanocatalysts

Castor oil as a potential renewable resource for the production of functional materials

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