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Preparation method of Fe3O4/ C nanoparticles

A nanoparticle, fe3o4 technology, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problem of low removal efficiency, achieve the effect of uniform size, large adsorption capacity, and simple method

Inactive Publication Date: 2014-01-15
SHAANXI SHENGMAI PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the concentration of dye in dye wastewater is generally high, and the removal efficiency of these methods is not high. Adsorption is also a common method for separating pollutants. It is widely used to adsorb pollutants with high water solubility and difficult biodegradation, such as Fe 3 o 4 / C does not produce harmful substances in the process of adsorbing pollutants, and is an economical and environmentally friendly adsorbent

Method used

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  • Preparation method of Fe3O4/ C nanoparticles
  • Preparation method of Fe3O4/ C nanoparticles
  • Preparation method of Fe3O4/ C nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Fe in the present invention 3 O 4 The preparation method of / C nanoparticles includes the following steps:

[0014] (1) Add 1.35g FeCl 3 ·6H 2 Dissolve O in 40ml ethylene glycol, add 3.6 g NaAc·3H in turn 2 O and 1.0 g polyethylene glycol (PEG-4000), stir for 30min and mix uniformly, pour the solution into a 50ml reactor and react at 200℃ for 8 hours, then cool to room temperature to obtain Fe 3 O 4 Nanoparticles.

[0015] (2) The prepared Fe 3 O 4 Dispersed in 50ml 0.1mol / L HNO 3 Sonicated for 10min, washed with distilled water, and then acidified Fe 3 O 4 Re-disperse in 8ml of 0.5mol / L glucose, ultrasonic, transfer the suspension to the reaction kettle at 170℃ for 4 hours, cool, repeatedly wash with water and ethanol, and dry to obtain Fe 3 O 4 / C Nanoparticles.

Embodiment 2

[0017] Fe 3 O 4 / C Characterization of Nanoparticles

[0018] (1) Fe 3 O 4 And Fe 3 O 4 / C microscopic morphology of nanoparticles

[0019] To Fe 3 O 4 And Fe 3 O 4 / C Nanoparticles for scanning electron microscopy photos (such as figure 1 Shown), in the figure a and b are Fe 3 O 4 And Fe 3 O 4 / C SEM photo, the two kinds of nanoparticles are uniform, the size is about 200nm, Fe 3 O 4 The surface is relatively rough, and the surface becomes smooth after being coated with carbon, indicating the formation of Fe 3 O 4 / C Composite nanoparticles.

[0020] (2) Fe 3 O 4 And Fe 3 O 4 / C Nanoparticle infrared spectrum

[0021] Using KBr tablet method and Fourier transform infrared spectrometer to measure Fe 3 O 4 And Fe 3 O 4 / C Nanoparticles for infrared spectroscopy analysis (such as figure 2 Shown), where 570 cm -1 The absorption peak is Fe 3 O 4 Characteristic absorption peak, 1631 cm -1 The absorption peak corresponds to the stretching vibration of C=O, 3405 cm -1 The absorption peak cor...

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Abstract

The invention relates to a preparation method and application of Fe3O4 / C nanoparticles. The preparation method of the Fe3O4 / C nanoparticles comprises the following steps: (1) dissolving 1.35 g of FeCl3.6H2O into 40 ml of ethylene glycol, adding 3.6 g of NaAc.3H2O and 1.0 g of polyethylene glycol (PEG-4000) in sequence, uniformly mixing, reacting for 8 hours at 200 DEG C, and cooling to obtain Fe3O4; (2) dispersing the prepared Fe3O4 into 0.1 mol / L HNO3, washing with distilled water, and redispersing the acidified Fe3O4 into 8 mL of 0.5 mol / L glucose, transferring the suspension to a reactor, reacting for 4 hours at 170 DEG C, cooling, washing repeatedly with water and ethanol, and drying to obtain the Fe3O4 / C nanoparticles. The preparation method has the advantages of easy obtainment of raw materials, nontoxicity and simpleness.

Description

Technical field [0001] The invention relates to a method for preparing magnetic materials, in particular to a Fe 3 O 4 / C Preparation method of nanoparticles. Background technique [0002] At present, the stable chemical structure of dyes makes it difficult to biodegrade, highly toxic, and has a deep color even at low concentrations, which brings great pressure to the purification of the water environment. Rhodamine B is a kind of stable cationic basic dye commonly used in the printing and dyeing industry with strong carcinogenicity. There are many methods to treat rhodamine B dye wastewater, such as activated sludge, photodegradation, ion exchange, chemical flocculation, etc. However, the dye concentration in general dye wastewater is relatively high, and the removal efficiency of these methods is not high. The adsorption method is also a common method for separating pollutants. It is widely used to adsorb pollutants that are more water-soluble and difficult to be biodegraded. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM
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