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Preparation method of carbon-ferric oxide nanocomposite material

A nanocomposite material, iron oxide nanotechnology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, chemical/physical processes, etc., can solve the problems of high cost, complex process, and many parameters. , to achieve the effect of tight interface, simple process and simple process

Active Publication Date: 2015-04-08
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] present carbon and α-Fe 2 o 3 The preparation methods of composite materials are mainly hydrothermal method, template method, etc., need to add surfactant, acidity adjustment, etc., there are many parameters that need to be controlled, the process is complicated, and the cost is high

Method used

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  • Preparation method of carbon-ferric oxide nanocomposite material
  • Preparation method of carbon-ferric oxide nanocomposite material
  • Preparation method of carbon-ferric oxide nanocomposite material

Examples

Experimental program
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Effect test

Embodiment 1

[0018] 0.025mol of ferric nitrate, 0.075mol of amine organic matter, and 0.075mol of carbon source are dissolved in deionized water to prepare a solution, and the solution is placed on a temperature-controllable electric furnace for heating. After the solution undergoes a series of reactions such as volatilization, concentration, and decomposition, a carbon-iron oxide nanocomposite material is obtained. XRD shows that the product has good α-Fe 2 o 3 Structure, Raman results show that there is amorphous carbon in the product, and the nitrogen adsorption-desorption isotherm curve shows that the product has a mesoporous structure. TEM images show that carbon-iron oxide nanocomposites are porous, and α-Fe 2 o 3 Particles of about 30nm, and carbon and α-Fe 2 o 3 The particles are tightly connected. Photocatalytic tests show that carbon-iron oxide nanocomposites have good photocatalytic properties.

Embodiment 2

[0020] 0.025mol of ferric nitrate, 0.0125mol of amine organic matter, and 0.0625mol of carbon source are dissolved in deionized water to prepare a solution, and the solution is placed on a temperature-controllable electric furnace for heating. After the solution undergoes a series of reactions such as volatilization, concentration, and decomposition, a carbon-iron oxide nanocomposite material is obtained. Gained material structure is identical with embodiment 1, α-Fe 2 o 3 Particles of about 50nm, and carbon and α-Fe 2 o 3 The particles are tightly connected. Photocatalytic tests show that carbon-iron oxide nanocomposites have good photocatalytic properties.

Embodiment 3

[0022] 0.025mol of ferric nitrate, 0.0375mol of amine organic matter, and 0.0375mol of carbon source are dissolved in deionized water to prepare a solution, and the solution is placed on a temperature-controllable electric furnace for heating. After the solution undergoes a series of reactions such as volatilization, concentration, and decomposition, a carbon-iron oxide nanocomposite material is obtained. Gained material structure is identical with embodiment 1, α-Fe 2 o 3 Particles of about 45nm, and carbon and α-Fe 2 o 3 The particles are tightly connected. Photocatalytic tests show that carbon-iron oxide nanocomposites have good photocatalytic properties.

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Abstract

The invention discloses a preparation method of a carbon-ferric oxide (alpha-Fe2O3) nanocomposite material, belonging to the field of synthesizing an inorganic material. The carbon-ferric oxide nanocomposite material is obtained through one-step reaction by adopting an ferrous source, a carbon source and an auxiliary as raw materials, without the need of subsequent treatment, and the prepared carbon-ferric oxide nanocatalyst and ferric oxide realize nanoscale composition, the specific surface area is large, the carbon-ferric oxide nanocomposite material has a mesoporous structure, the solar utilization rate is high, the catalysis performance is good, and the carbon-ferric oxide nanocomposite material can be used in the field of a functional material, especially the field of photocatalytic degradation of organic pollutants. According to the preparation method, the raw materials are easily available, a template, a surfactant, a precipitator and the like are not needed during the preparation process, the technology is simple, the production cost is low, and large-scale production is easy to realize.

Description

Technical field: [0001] The invention belongs to the field of inorganic material synthesis, and relates to a preparation method of a composite material, in particular to a preparation method of a carbon-and iron oxide nanometer composite material. The prepared carbon-iron oxide nanocomposite can be used as a photocatalytic material to degrade organic pollutants. Background technique: [0002] In recent years, environmental pollution has seriously threatened the health and safety of the public, and has attracted extensive attention from domestic and foreign research groups. Studies have shown that using semiconductor materials as photocatalysts is an economical and efficient way to deal with water pollution. α-Fe 2 o 3 It is a typical n-type semiconductor material with a medium bandgap width. Its forbidden bandwidth is 1.9-2.2eV. It has a strong light absorption ability in the visible light region and can absorb and utilize about 30% of solar energy. α-Fe 2 o 3 The appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745
Inventor 秦明礼曹知勤顾月茹曲选辉陈鹏起贾宝瑞
Owner UNIV OF SCI & TECH BEIJING
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