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Massart Method Magnetite

Massart Method Magnetite

Synthesis of nanometer-size maghemite particles from magnetite

2004-09-24  The magnetite nanoparticles with a larger size were prepared by modified Massart method by coprecipitating 500 mL mixture of FeCl 3 (0.1 M) and FeSO 4 (0.6 M) solutions by adding of NH 3 H 2 O solution (1.5 M, 200 mL). The oxidization procedure

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massart method magnetite - vidyatechnicalinstitute

Magnetite can be prepared in the laboratory as a ferrofluid in the Massart method by mixing iron(II) chloride and iron(III) chloride in the presence of sodium hydroxide. Magnetite can also be prepared by the chemical co-precipitation in presence of ammonia, which consist in a mixture of a solution 0.1 M of FeCl 3 6H 2 O and FeCl 2 4H 2 O ...

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massart method magnetite - lemoulindescomperes.fr

Magnetite nanoparticles were precipitated by the classic Massart's method in a L stirred tank reactor where the injection of reagent solutions was effectuated by different micromixers (Ttube and HartridgeRoughton rapid mixing devices). The specific surface area, the average particle size and the particle size distribution were highly influenced by changing operating parameters.

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Synthesis, characterization and a.c. magnetic analysis of ...

2011-10-28  The magnetite nanoparticles were synthesized by a modified Massart method.

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Magnetite (Fe3O4): Properties, Synthesis, and Applications

Massart R (1981). Preparation of aqueous magnetic liquids in alkaline and acidic media. IEEE Trans. Magn. 17, 1247-1248 Meisen U and Kathrein H (2000). The influence of particle size, shape and particle size distribution on properties of magnetites for the production of toners. Journal of Imaging Science and Technology, 44(6): 508-513

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Surface Study of Fe 3 O 4 Nanoparticles Functionalized ...

Surfaces of iron oxide of ferrimagnetic magnetite (Fe 3 O 4) nanoparticles (MNPs) prepared by Massart's method and their functionalized form (f-MNPs) with succinic acid, L-arginine, oxalic acid, citric acid, and glutamic acid were studied by dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR-S), UV-vis, thermogravimetric analysis (TGA)/differential scanning ...

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massart method magnetite - lemoulindescomperes.fr

Magnetite nanoparticles were precipitated by the classic Massart's method in a L stirred tank reactor where the injection of reagent solutions was effectuated by different micromixers (Ttube and HartridgeRoughton rapid mixing devices). The specific surface area, the average particle size and the particle size distribution were highly influenced by changing operating parameters.

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Surface Study of Fe 3 O 4 Nanoparticles Functionalized ...

Surfaces of iron oxide of ferrimagnetic magnetite (Fe 3 O 4) nanoparticles (MNPs) prepared by Massart's method and their functionalized form (f-MNPs) with succinic acid, L-arginine, oxalic acid, citric acid, and glutamic acid were studied by dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR-S), UV-vis, thermogravimetric analysis (TGA)/differential scanning ...

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massart method magnetite - std57.es

massart method magnetite . New Way to Produce Magnetite Nanoparticles at Low ... , Sep 7, 2015 ... In this paper, we present a modification of the Massart's method which allows obtaining polydisperse magnetite. nanoparticles in easy way at ... Full article: Modified chemical coprecipitation of magnetic magnetite ... , Aug 7, 2017 ... In this investigation, magnetite nanoparticles (Fe3O4 NPs ...

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Synthesis of spherical submicron-sized magnetite/silica ...

2007-11-14  This paper describes a method for fabricating spherical submicron-sized silica particles that contained magnetite nanoparticles (magnetite/silica composite particles). The magnetite nanoparticles with a size of ca. 10 nm were prepared according to the Massart method, and were surface-modified with carboxyethylsilanetriol. The fabrication of magnetite/silica composite particles was performed in ...

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Journal of Chemical and Pharmaceutical Research, 2016, 8(4 ...

magnetite (Fe 3O4), maghemite ( γ-Fe 2O3),and hematite ( α ... Massart method and titration hydrolysis method are recognized. In the Massart approach, an alkaline solution, is introduced into the Fe 2+ and Fe 3+ iron solution. While in titration hydrolysis, the Fe 2+ and Fe 3+ iron solution is added gradually into the alkaline solution. Magnetite is sensitive to oxygen and in the presence of ...

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Effect of FeCl Concentration on the Properties of Magnetic ...

3+A very classic method used to produce maghemite and magnetite nanoparticles is Massart’s procedure. Several attempts have been done by researchers to improve the size, shape and size distribution of the particles (Liu et al. 2004; Tao et al. 2008), however most of the study are focus on the formation pure magnetite and additional of precursor materials are needed. In this research, the ...

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Magnetic Nanoparticles: from Synthesis to Theranostics

Magnetite or its maghemite NPs are prepared by aging appropriate stoichiometric ratios of ferrous (Fe2+) and ferric (Fe3+) salts in an aqueous basic media (typically NH 4 OH or NaOH) at room or elevated temperatures (~80–100 °C). This protocol was first explored by Massart in 1981 and is, therefore, known as the “Massart method” [35 ...

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SYNTHESIS OF NANOMETER-SIZE MAGHEMITE PARTICLES FROM MAGNETITE

Abstract Magnetite (Fe 3 O 4 ) nanoparticles with mean diameter of about 7 and 13 nm were prepared by partial reduction coprecipitation method and modified Massart method, respectively. Then the maghemite (γ-Fe 2 O 3 ) nanoprticles were obtained by aeration oxidizing of acidified magnetite nanoparticles aqueous suspension. The transition from magnetite to maghemite nanoparticles was

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Iron(II,III) oxide - Wikipedia

Magnetite can be prepared in the laboratory as a ferrofluid in the Massart method by mixing iron(II) chloride and iron(III) chloride in the presence of sodium hydroxide. Magnetite can also be prepared by the chemical co-precipitation in presence of ammonia, which consist in a mixture of a solution 0.1 M of FeCl 3 6H 2 O and FeCl 2 4H 2 O with mechanic agitation of about 2000 rpm.

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Making Fe3O4/Magnetite Physics Forums

2008-11-02  The way I made it was. Prepare an Fe+2 / Fe+3 (aq) solution in a 1 : 2 mole ratio. One may do this by dissolving some steel wool in Hydrochloride acid to make Iron (II) Chloride. Iron (III) Chloride may be obtained was PCB board etchant (which is, or used to be, sold at Ratio shack and Fry’s electronics stores).

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Studies of the Magnetite Nanoparticles by Means of M ...

The magnetite nanoparticles were prepared by modifled Massart’s method in water and in alcohol. The in°uence of the condition of preparation on the properties of magnetite nanoparticles were investigated by M˜ossbauer spectroscopy. The size of the particles were determined by transmission elec-tron microscopy. It was shown that the particles size in the alcoholic reaction is smaller than ...

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massart method magnetite - std57.es

massart method magnetite . New Way to Produce Magnetite Nanoparticles at Low ... , Sep 7, 2015 ... In this paper, we present a modification of the Massart's method which allows obtaining polydisperse magnetite. nanoparticles in easy way at ... Full article: Modified chemical coprecipitation of magnetic magnetite ... , Aug 7, 2017 ... In this investigation, magnetite nanoparticles (Fe3O4 NPs ...

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Synthesis of spherical submicron-sized magnetite/silica ...

2007-11-14  This paper describes a method for fabricating spherical submicron-sized silica particles that contained magnetite nanoparticles (magnetite/silica composite particles). The magnetite nanoparticles with a size of ca. 10 nm were prepared according to the Massart method, and were surface-modified with carboxyethylsilanetriol. The fabrication of magnetite/silica composite particles was performed in ...

Get Price

Journal of Chemical and Pharmaceutical Research, 2016, 8(4 ...

magnetite (Fe 3O4), maghemite ( γ-Fe 2O3),and hematite ( α ... Massart method and titration hydrolysis method are recognized. In the Massart approach, an alkaline solution, is introduced into the Fe 2+ and Fe 3+ iron solution. While in titration hydrolysis, the Fe 2+ and Fe 3+ iron solution is added gradually into the alkaline solution. Magnetite is sensitive to oxygen and in the presence of ...

Get Price

Effect of FeCl Concentration on the Properties of Magnetic ...

3+A very classic method used to produce maghemite and magnetite nanoparticles is Massart’s procedure. Several attempts have been done by researchers to improve the size, shape and size distribution of the particles (Liu et al. 2004; Tao et al. 2008), however most of the study are focus on the formation pure magnetite and additional of precursor materials are needed. In this research, the ...

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Sorption Concentration of Arsenic Ions by Magnetite

For obtaining magnetite chemically, the method was used that has been proposed by R. Massart (Massart, 1981), where ferriferous chloride and ferric chloride were used at a ratio of 1 to 2 as initial solutions for obtaining magnetite. Sedimentation was performed at optimal temperatures no higher than 25 - 30 °C at one-and-a-half excess of precipitant, ammonia water. 2FeCl3+FeCl2+ 8NH4OH ...

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Characterization of Sulphated Cellulose Nanocrystals as ...

as Stabilizer for Magnetite Nanoparticles Synthesis with improved Magnetic Properties ... Massart's method. The particles morphology, structure and crystallite properties were investigated by using microscopic techniques. The magnetic properties of Fe 3O 4 nanoparticles were investigated by using physical property measurement system. The average width of CNC was ≈20 nm with length of

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Iron(II,III) oxide - Wikipedia

Magnetite can be prepared in the laboratory as a ferrofluid in the Massart method by mixing iron(II) chloride and iron(III) chloride in the presence of sodium hydroxide. Magnetite can also be prepared by the chemical co-precipitation in presence of ammonia, which consist in a mixture of a solution 0.1 M of FeCl 3 6H 2 O and FeCl 2 4H 2 O with mechanic agitation of about 2000 rpm.

Get Price

Making Fe3O4/Magnetite Physics Forums

2008-11-02  The way I made it was. Prepare an Fe+2 / Fe+3 (aq) solution in a 1 : 2 mole ratio. One may do this by dissolving some steel wool in Hydrochloride acid to make Iron (II) Chloride. Iron (III) Chloride may be obtained was PCB board etchant (which is, or used to be, sold at Ratio shack and Fry’s electronics stores).

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SILANE COVERED MAGNETITE PARTICLES. PREPARATION AND ...

magnetite particles with silanes induces a decrease of the magnetization from 64 emu/g to 22-56 emu/g depending on silane nature. (Received March 22, 2008; accepted March 27, 2008) Keywords: Magnetic particles, Magnetite, Silane, Co-precipitation 1. Introduction Nanotechnology represents a new phase of knowledge and technical development with potential applications in various areas such as ...

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Studies of the Magnetite Nanoparticles by Means of M ...

The magnetite nanoparticles were prepared by modifled Massart’s method in water and in alcohol. The in°uence of the condition of preparation on the properties of magnetite nanoparticles were investigated by M˜ossbauer spectroscopy. The size of the particles were determined by transmission elec-tron microscopy. It was shown that the particles size in the alcoholic reaction is smaller than ...

Get Price

Journal of Chemical and Pharmaceutical Research, 2016, 8(4 ...

magnetite (Fe 3O4), maghemite ( γ-Fe 2O3),and hematite ( α ... Massart method and titration hydrolysis method are recognized. In the Massart approach, an alkaline solution, is introduced into the Fe 2+ and Fe 3+ iron solution. While in titration hydrolysis, the Fe 2+ and Fe 3+ iron solution is added gradually into the alkaline solution. Magnetite is sensitive to oxygen and in the presence of ...

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Cardiac tissue engineering in magnetically actuated scaffolds

ferrous and ferric chloride (the Massart method). Briefly, four batches of magnetite obtained from ferric chloride hexahydrate and ferrous chloride tetrahydrate (at a molar ratio 2:1, weighing 520 mg and 192 mg, respectively dissolved in 6.2 ml of doubly deionized water) by alkaline precipitation with aqueous sodium hydroxide (a 3.8 ml of 2N sodium hydroxide) were magnetically separated and ...

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Influence of a Magnetic Field on the Formation of ...

2007-03-03  An experimental investigation is described on the effects of the presence of a magnetic field during the fabrication of magnetite particles. We considered two well-known synthesis methods: that of Massart [IEEE Trans. Magn. 1981, 17, 1247−1248] for the synthesis of nanometer-sized, monodomain particles; and that of Sugimoto and Matijević [J. Colloid Interface Sci. 1980, 74, 227−243.] for ...

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Synthesis, characterization and a.c. magnetic analysis of ...

The magnetite nanoparticles were synthesized by a modified Massart method. Structural characterization was performed using X-ray diffraction analysis and a complete morphological and dimensional study was carried out by means of Transmission Electron Microscopy, and a.c. magnetic susceptibility measured as a function of the frequency of the applied magnetic field. Diameters of the ...

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Effect of FeCl Concentration on the Properties of Magnetic ...

3+A very classic method used to produce maghemite and magnetite nanoparticles is Massart’s procedure. Several attempts have been done by researchers to improve the size, shape and size distribution of the particles (Liu et al. 2004; Tao et al. 2008), however most of the study are focus on the formation pure magnetite and additional of precursor materials are needed. In this research, the ...

Get Price

Multiple Morphologies of Gold–Magnetite Heterostructure ...

Magnetite nanoparticles were synthesized by a co-precipitation method (Massart, Reference Massart 1981). Under argon, 5 mL of a solution containing 0.64 M anhydrous FeCl 3 and 0.32 M anhydrous FeCl 2 (both salts from Sigma-Aldrich, St. Louis, MO, USA) in 0.4 M HCl was slowly added to 50 mL of 1.5 M NaOH in degassed, distilled deionized H 2 O (ddH 2 g for 1 min, and resuspended in degassed ddH ...

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DEVELOPMENT OF OPTIMIZED-REVERSE CO-PRECIPITATION METHOD

Magnetite-Nanoparticles. This technique decreases the chances of agglomeration, broad particle size distribution and provides better nanoparticles as compared to simple co-precipitation method. The effect of different variables such as the temperature, N 2-sparging, stirring rate, amount of capping agent and pH were studied and optimized for the synthesis of Magnetite-NPs by using the proposed ...

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Making Fe3O4/Magnetite Physics Forums

2008-11-02  The way I made it was. Prepare an Fe+2 / Fe+3 (aq) solution in a 1 : 2 mole ratio. One may do this by dissolving some steel wool in Hydrochloride acid to make Iron (II) Chloride. Iron (III) Chloride may be obtained was PCB board etchant (which is, or used to be, sold at Ratio shack and Fry’s electronics stores).

Get Price

SILANE COVERED MAGNETITE PARTICLES. PREPARATION AND ...

magnetite particles with silanes induces a decrease of the magnetization from 64 emu/g to 22-56 emu/g depending on silane nature. (Received March 22, 2008; accepted March 27, 2008) Keywords: Magnetic particles, Magnetite, Silane, Co-precipitation 1. Introduction Nanotechnology represents a new phase of knowledge and technical development with potential applications in various areas such as ...

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