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Preparation method and application of ferromanganese layered bimetal hydroxide catalyst

A layered bimetallic, hydroxide technology, applied in metal/metal oxide/metal hydroxide catalysts, catalyst activation/preparation, physical/chemical process catalysts, etc. Catalytic sites, realizing recycling, and the effect of less metal ion dissolution

Pending Publication Date: 2020-06-02
HUAQIAO UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there are few studies on the activation of PMS to degrade refractory organics by manganese-ferromanganese layered double metal hydroxide composite catalysts

Method used

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  • Preparation method and application of ferromanganese layered bimetal hydroxide catalyst
  • Preparation method and application of ferromanganese layered bimetal hydroxide catalyst

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Experimental program
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Embodiment 1

[0033] (1) Under stirring with a magnetic stirrer, in 100m1 deionized water, add FeCl in a molar ratio of 1:1 3 ·6H 2 O, MnCl 2 4H 2 O (a total amount of 0.1mol) to obtain the first solution; add 0.15mol / L of Na in 100ml deionized water 2 CO 3 And the NaOH of 0.35mol / L, obtain the second solution;

[0034] (2) Slowly add the second solution obtained in step (1) into the first solution dropwise and adjust the pH to 10. After stirring with a magnetic stirrer at room temperature for 2 hours, place it in a constant temperature water bath and heat it at 60°C for 24 hours. ;

[0035] (3) After the material obtained in step (2) is cooled to room temperature, a vacuum suction filter is used for solid-liquid separation, and during the washing process, it is washed 5 times with distilled water and absolute ethanol, and the pH is washed to 7.0. Then the obtained sample was put into a vacuum drying oven, dried at 60°C for 8h, cooled to room temperature, taken out, ground and sieved ...

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Abstract

The invention discloses a preparation method and application of a ferromanganese layered bimetal hydroxide catalyst. According to the invention, the ferromanganese layered bimetal hydroxide catalyst is prepared through a co-precipitation method, wherein the electron transfer capacity of the catalyst is enhanced through the synergistic effect of ferromanganese bimetal, catalytic sites are increased, and the adsorption capacity of the catalyst is improved through exchange of interlayer anions and target pollutants. The ferromanganese layered bimetal hydroxide composite catalyst prepared by the method can effectively activate persulfate to generate a large number of free radicals and efficiently degrade refractory organic matters in water.

Description

technical field [0001] The invention belongs to the technical field of composite catalysts, and in particular relates to a preparation method and application of a ferromanganese layered double metal hydroxide catalyst. Background technique [0002] Advanced oxidation process (Advanced Oxidation Process, AOPs) is a kind of active free radicals (such as OH, SO 4 - ) is characterized by high temperature and high pressure, electricity, sound, light irradiation, catalysts and other reaction conditions to oxidize macromolecular refractory organic matter into low-toxic or non-toxic small molecular substances to achieve rapid oxidation and degradation of pollutants. processing technology. [0003] In recent years, sulfate radical·SO 4 - The advanced oxidation technology, which is a strong oxidative active substance, has become a research hotspot in the degradation of organic pollutants. · SO 4 - Usually produced by the decomposition of permonosulfate (PMS) or persulfate (PS),...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J35/02B01J37/03C02F1/72C02F101/30
CPCB01J37/03B01J23/8892C02F1/725C02F1/722C02F2101/308B01J35/50
Inventor 洪俊明李立张倩
Owner HUAQIAO UNIVERSITY
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