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Iron-aluminum-carbon composite catalytic material, preparation method and organic wastewater degradation method

A catalytic material, carbon composite technology, applied in catalyst activation/preparation, chemical instruments and methods, energy and wastewater treatment, etc., can solve problems such as unfavorable industrial production, difficult active component loading, complex operation, etc. , the effect of high repeated use and simple preparation method

Active Publication Date: 2021-03-05
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This step-by-step synthesis method is complicated to operate and takes a long time, which is not conducive to industrial production.
In addition, it is difficult to firmly support other active components on carbon-based materials by the step-by-step synthesis method.

Method used

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  • Iron-aluminum-carbon composite catalytic material, preparation method and organic wastewater degradation method

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preparation example Construction

[0027] The preparation method of iron-aluminum-carbon composite catalytic material of the present invention, its steps are as follows:

[0028] S1 First, dissolve the ferric compound, trivalent aluminum compound and glucose into ultrapure water to form three solutions; the ferric compound is ferric chloride hydrate, ferric nitrate hydrate or ferric nitrate hydrate; The aluminum compound is selected from aluminum chloride hydrate, aluminum nitrate hydrate or aluminum nitrate hydrate; the concentration of the ferric compound and the trivalent aluminum compound aqueous solution is 0.2-0.8mol / L; the concentration of the glucose solution is 6g / L;

[0029] S2 Add the ferric compound solution and the trivalent aluminum compound solution dropwise to the glucose solution at a rate of 1-10mL / min; slowly add the ferric compound solution and the trivalent aluminum compound solution into the glucose solution at the same time and stir with a stirring device , the stirring speed is 600-1000r...

Embodiment 1

[0035] Such as figure 1 Shown, a kind of method for preparing iron-aluminum-carbon composite catalytic material of the present invention comprises the following steps:

[0036] 1) Weigh 8.25g (20mmol) ferric nitrate nonahydrate and dissolve it in 30mL ultrapure water; weigh 1.25g aluminum chloride hexahydrate (5mmol) and place it in 20mL ultrapure water; weigh 10g glucose and dissolve it in 20mL ultrapure water;

[0037] 2) slowly drop the above-mentioned ferric nitrate solution and aluminum chloride solution into the glucose solution at the same time, the dropping rate is 2mL / min, magnetically stir for 2h, and the stirring speed is 800r / min;

[0038] 3) Use 1.5mol / L sodium hydroxide solution to adjust the pH of the above solution to 8.0, stir magnetically for 2 hours, and the stirring speed is 800r / min;

[0039] 4) Transfer the above mixed solution to a 200mL hydrothermal reaction kettle, and place it in a hydrothermal reaction at 180°C for 24 hours; then separate the preci...

Embodiment 2

[0047] A method for preparing an iron-aluminum-carbon composite catalytic material, comprising the following steps:

[0048] 1) Weigh 8.25g (20mmol) ferric nitrate nonahydrate and dissolve it in 60mL ultrapure water; weigh 1.25g aluminum chloride hexahydrate (5mmol) and place it in 25mL ultrapure water; weigh 10g glucose and dissolve it in 30mL ultrapure water;

[0049] 2) Slowly drop the above-mentioned ferric nitrate solution and aluminum chloride solution into the glucose solution at the same time, the dropping rate is 2mL / min, magnetically stir for 2h, and the stirring speed is 600r / min;

[0050] 3) Use 3mol / L sodium hydroxide solution to adjust the pH of the above solution to 7.5, stir magnetically for 2 hours, and the stirring speed is 600r / min;

[0051] 4) Transfer the above mixed solution to a 200mL hydrothermal reaction kettle, and place it in a hydrothermal reaction at 180°C for 24 hours; then separate the precipitate by suction filtration, and wash it several times...

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Abstract

The invention discloses an iron-aluminum-carbon composite catalytic material, a preparation method and an organic wastewater degradation method, which are particularly suitable for the field of wastewater treatment. The preparation method comprises the following steps: respectively dissolving a ferric iron compound, a trivalent aluminum compound and glucose in ultrapure water to form three solutions; slowly adding the ferric iron compound solution and the trivalent aluminum compound solution into the glucose solution at the same time, perofrming stirring, adjusting the pH value, continuously performing stirring, transferring the mixture into a hydrothermal reaction kettle, carrying out hydrothermal reaction, and embedding iron and aluminum into a carbon material skeleton in the process offorming the carbon material in situ; and washing the hydrothermal reaction product, and performing drying to obtain a solid reactant, thereby obtaining the iron-aluminum-carbon composite catalytic material. The catalytic material is high in catalytic activity, good in stability, capable of being repeatedly used, capable of reducing wastewater treatment cost, environmentally friendly and good in economical efficiency; and the method has the advantages of few preparation steps, good operability, low cost, low equipment requirement and wide practicability.

Description

technical field [0001] The invention specifically relates to a catalytic material, a preparation method, and a method for degrading organic wastewater, and is especially suitable for an iron-aluminum-carbon composite catalytic material, a preparation method, and a method for degrading organic wastewater used in the field of wastewater treatment. Background technique [0002] With the rapid development of chemistry and chemical industry, a large amount of chemical reagents are consumed, and the residual chemical reagents and production by-products are discharged into natural water bodies, causing serious pollution of the water body environment. In addition, the pollutants emitted by human activities have seriously aggravated the pollution of the natural environment. Among them, organic pollutants have the characteristics of high biological toxicity, complex components and difficult biodegradation, which not only restricts economic development, but also damages human health. ...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J37/10B01J37/00C02F1/30C02F1/72C02F101/30C02F101/38C02F101/36
CPCB01J23/745B01J37/10B01J37/0036C02F1/30C02F1/725C02F1/722C02F2305/10C02F2101/308C02F2101/40C02F2101/38C02F2101/36Y02W10/37
Inventor 徐天缘郑茜康雪妍邢耀文桂夏辉
Owner CHINA UNIV OF MINING & TECH
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