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Iron-aluminum composite metal oxide micro-nano material and preparation method thereof, and degradation method for polybrominated diphenyl ethers

A polybrominated diphenyl ether and composite metal technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, chemical/physical processes, etc., to achieve a simple and easy preparation method, low cost and low reaction temperature. Effect

Active Publication Date: 2016-05-04
山东术衣博士消毒科技股份有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Moreover, there is no literature report on the degradation of PBDEs by composite micro-nano metal oxides

Method used

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  • Iron-aluminum composite metal oxide micro-nano material and preparation method thereof, and degradation method for polybrominated diphenyl ethers
  • Iron-aluminum composite metal oxide micro-nano material and preparation method thereof, and degradation method for polybrominated diphenyl ethers
  • Iron-aluminum composite metal oxide micro-nano material and preparation method thereof, and degradation method for polybrominated diphenyl ethers

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preparation example Construction

[0023] The invention provides an iron-aluminum composite metal oxide micro-nano material, a preparation method and a polybrominated diphenyl ether degradation method. The iron-aluminum composite metal oxide micro-nano material is a micron particle composed of nanoparticles, and its phase is composed of iron and aluminum A composite metal oxide, wherein the atomic ratio of iron and aluminum is 1-10:1-10. The iron-aluminum composite metal oxide micro-nano material of the invention can degrade polybrominated diphenyl ethers stably, efficiently, quickly and at low temperature, the material is beneficial to recovery, and the preparation method is simple and easy, and the cost is low.

[0024] According to one embodiment of the present invention, the iron-aluminum composite metal oxide micro-nano material is a micron particle composed of nanoparticles, and its phase is a composite metal oxide composed of iron and aluminum, wherein the atomic ratio of iron and aluminum The particle s...

Embodiment approach

[0025] According to one embodiment of the present invention, the preparation method of iron-aluminum composite metal oxide micro-nano material comprises:

[0026] S1, dissolve iron salt and aluminum salt in water, add urea to the solution, mix and stir, transfer the solution to a stainless steel reactor for hydrothermal reaction, wherein the atomic ratio of iron and aluminum is 0.1~ 10;

[0027] S2, cool the solution to room temperature, collect the precipitate, wash the precipitate with distilled water and absolute ethanol and centrifuge, and dry in an oven to obtain the iron-aluminum composite metal oxide micro / nano material, wherein the drying temperature is 60°C, and the drying time is For 6 ~ 8h.

[0028] According to one embodiment of the present invention, iron salt and aluminum salt are nitrate or oxalate, can be Al(NO 3 ) 3 ·6H 2 O, the iron salt can be ferric ammonium oxalate.

[0029] According to one embodiment of the present invention, the concentration of ir...

Embodiment 1

[0034] Take Al(NO 3 ) 3 ·6H 2 O0.9634g, ferric ammonium oxalate 0.7467g, urea 9mmol and distilled water 40mL were placed in a 100mL beaker, electromagnetically stirred at room temperature for 30min, and then transferred to a 50mL stainless steel reaction kettle. Put the reactor into an oven at 180°C for 12 hours. After the reaction was completed, it was cooled to room temperature, and the precipitate was collected. The precipitate was washed with distilled water and absolute ethanol, and dried at 60°C for several hours. The iron-aluminum composite micro / nano metal oxide can be obtained. Its SEM and EDX characterization results are as follows figure 1 As shown, the SEM images of (a) and (c) show that the prepared material is a spherical and flower-like micro-nano structure material, and the EDX characterization results of (b) and (d) show that it contains two metal elements, iron and aluminum.

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Abstract

The invention provides an iron-aluminum composite metal oxide micro-nano material and a preparation method thereof, and a degradation method for polybrominated diphenyl ethers. The iron-aluminum composite metal oxide micro-nano material is micrometer particles composed of nanometer particles; the phase of the material is a composite metal oxide composed of iron and aluminum; and an atomic ratio of iron to aluminum in the composite metal oxide is 0.1 to 10. The iron-aluminum composite metal oxide micro-nano material provided by the invention can stably, highly efficiently and rapidly degrade polybrominated diphenyl ethers at a low temperature; the material is easy to recover; and the preparation method for the material is simple, easily practicable and low in cost.

Description

technical field [0001] The invention relates to an iron-aluminum composite metal oxide micro-nano material for degrading polybrominated diphenyl ethers, a preparation method of the iron-aluminum composite metal oxide micro-nano material and a method for degrading polybrominated diphenyl ethers. Background technique [0002] Polybrominated diphenyl ethers are widely used as the main brominated flame retardants in electronics, electrical appliances, chemicals, transportation, building materials, textiles, petroleum, mining, etc. and other fields. Since PBDEs are additive flame retardants and do not form chemical bonds with the product itself, a large amount of PBDEs are released into the environment during the production, application and disposal of the products. As a new type of persistent organic pollutants, polybrominated diphenyl ethers are persistent, refractory, long-distance migration, bioaccumulation and high toxicity, and have potential hazards to ecosystems and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745A62D3/34A62D101/28A62D101/22
CPCA62D3/34B01J23/745A62D2101/22A62D2101/28B01J35/40
Inventor 苏贵金李倩倩杨帆郑明辉
Owner 山东术衣博士消毒科技股份有限公司
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