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Ferroferric oxide/polypyrrole composite material and preparation method thereof

A technology for ferric oxide and composite materials, which is applied in the field of ferric tetroxide/polypyrrole composite materials and their preparation, can solve the problems of low adsorption performance of composite materials, large particle size, complicated preparation process and the like, and achieve uniform size. , Small particle size, high purity effect

Inactive Publication Date: 2013-09-11
SHANXI DATONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, Yongbo Li et al. synthesized Fe with a core-shell structure with microwave-absorbing properties. 3 o 4 / Polypyrrole nanoparticles, but the prepared Fe 3 o 4 The particle size is large, the preparation process is complicated, and the saturation magnetization of the composite particles is only 20.1emu / g (Journal of Alloys and Compounds2011, 509:4104-4107); Madhumita Bhaumik et al prepared Polypyrrole / Fe 3 o 4 Composite materials, used to adsorb Cr(VI) ions, but Fe is not involved 3 o 4 The preparation of particles, and the adsorption performance of the prepared composite material is not high (Journal of Hazardous Materials, Journal of Hazardous Materials 2011, 190:381-390)

Method used

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  • Ferroferric oxide/polypyrrole composite material and preparation method thereof
  • Ferroferric oxide/polypyrrole composite material and preparation method thereof
  • Ferroferric oxide/polypyrrole composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] ① Fe 3 o 4 Preparation of nanoparticles: Weigh 2.7g FeCl respectively 3 ·6H 2 O and 1.0 g FeCl 2 4H 2 Dissolve O in 100mL deionized water, stir to completely dissolve the iron salt, and obtain a solution with a concentration of 0.15mol / L, then add 1mL of absolute ethanol, add solid NaOH at room temperature, and make the pH of the solution 11 after dissolution, and magnetically stir Fe was obtained after 0.5 hours 3 o 4 The black precipitate was filtered, washed three times with distilled water and absolute ethanol, and dried to obtain Fe 3 o 4 Nanoparticles. The results of transmission electron microscopy observations are as follows: figure 1 As shown, it can be seen that Fe 3 o 4 The nanoparticles are spherical, the particle size distribution is between 10-20nm, the size is uniform, and there is no agglomeration phenomenon. The results of X-ray diffraction analysis are as follows: figure 2 As shown, the product exhibits obvious Fe 3 o 4 The characterist...

Embodiment 2

[0031] ① Fe 3 o 4 Preparation of nanoparticles: Weigh 13.2g Fe respectively 2 (SO 4 ) 3 and 9.2g FeSO 4 ·7H 2 Dissolve O in 100mL deionized water, stir to completely dissolve the iron salt, and obtain a solution with a concentration of 1.0mol / L, then add 3mL of absolute ethanol, add solid NaOH at room temperature, and make the pH of the solution 10 after dissolution, and magnetically stir Get Fe after 2 hours 3 o 4 The black precipitate was filtered, washed 5 times with distilled water and absolute ethanol, and dried to obtain Fe 3 o 4 Nanoparticles, particle size distribution between 5-15nm, uniform size, good dispersion.

[0032] ② Fe 3 o 4 / PPy composite material preparation: the prepared 1.5gFe at room temperature 3 o 4 Disperse nanoparticles into 100mL deionized water, add 0.2g sodium dodecylbenzenesulfonate and 0.2mL silane coupling agent KH-570, ultrasonically disperse for 30 minutes to form a uniform solution, then add 6.0g Fe 2 (SO 4 ) 3 and 5mL of abs...

Embodiment 3

[0034] ① Fe 3 o 4 Preparation of nanoparticles: weigh 8.1gFe(NO 3 ) 3 9H 2 O and 2.9gFe(NO 3 ) 2 ·6H 2 O was dissolved in 100mL deionized water, and stirred to completely dissolve ferric nitrate and ferrous nitrate to obtain a solution with a concentration of 0.3mol / L, then add 2mL of absolute ethanol, and add solid NaOH at room temperature, and after dissolution, the pH of the solution was 12. Fe was obtained after magnetic stirring for 1 hour 3 o 4 The black precipitate was filtered, washed 4 times with distilled water and absolute ethanol, and dried to obtain Fe 3 o 4 Nanoparticles. The results of transmission electron microscopy observations are as follows: Image 6 As shown, it can be seen that the particle size is 10±2nm, the particle size distribution range is narrow, the uniformity is good, and the dispersion is good.

[0035] ② Fe 3 o 4 / PPy composite material preparation: the prepared 0.5gFe at room temperature 3 o 4 Disperse nanoparticles into 100mL ...

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Abstract

The invention relates to a ferroferric oxide / polypyrrole composite material, which comprises ferroferric oxide and polypyrrole, wherein particle size distribution of Fe3O4 particles in the ferroferric oxide / polypyrrole composite material is 5-30 nm, saturation magnetization of the ferroferric oxide / polypyrrole composite material is 30-70 emu / g, and electrical conductivity is 5-20 S / cm. The preparation method has advantages of simple operation and low cost.

Description

technical field [0001] The invention belongs to a composite material and a preparation method thereof, in particular to a ferric oxide / polypyrrole composite material and a preparation method thereof. Background technique [0002] Magnetic nanoparticles not only have the nano-size effect and large specific surface area unique to nanomaterials, but also exhibit high magnetic responsivity and sensitivity. Especially ferric oxide (Fe 3 o 4 ) nanoparticles, due to their high saturation magnetization, low toxic and side effects, good chemical stability, and low price, have broad application prospects in the fields of magnetic recording materials, biomedicine, catalysis, adsorption and separation, and become magnetic nanoparticles. research focus. Polypyrrole (PPy for short) is a conductive polymer with a conjugated π bond structure. It has the characteristics of simple synthesis method, good environmental stability, good conductivity, easy doping and dedoping, etc. It is widely...

Claims

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Application Information

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IPC IPC(8): C08L79/04C08K9/06C08K9/04C08K3/22C08G73/06
Inventor 乔永生沈腊珍郭永孟双明刘建红杨国臣
Owner SHANXI DATONG UNIV
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