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Preparation method of Fenton-like catalyst, as well as product and application of Fenton-like catalyst

A catalyst, Fenton's technology, applied in the field of preparation of Fenton-like catalysts, can solve the problems of limited reaction conditions, low reusability of catalyst recovery, iron ion residues, etc., to solve the problem of narrow pH range, rapid and effective degradation, and solution hard to recycle effect

Inactive Publication Date: 2016-11-23
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a method for preparing a Fenton-like catalyst in order to solve the problems of limited reaction conditions, low reaction activity, residual iron ions in the reaction system, and low reusability of the catalyst in the Fenton reaction in the prior art. and its products and applications

Method used

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  • Preparation method of Fenton-like catalyst, as well as product and application of Fenton-like catalyst

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preparation example Construction

[0023] Such as figure 1 Shown, the present invention provides a kind of preparation method of Fenton-like catalyst, take 4-aminopyridine and ferric perchlorate as reaction precursor, react in anhydrous N,N-dimethylformamide solution to obtain 4-aminopyridine Iron, and then bond 4-aminopyridine iron on the activated carbon fiber to obtain a Fenton-like catalyst.

[0024] Specifically include the following steps:

[0025] Step 1, the pretreatment of activated carbon fiber;

[0026] Take some activated carbon fibers, put them in a beaker, add soda ash Na 2 CO 3 Boil in the solution for 30-60 minutes, take out the activated carbon fiber, rinse it, dry it in an oven at 60-80 degrees, and set it aside for use, in which the soda ash Na 2 CO 3 The concentration of the solution is 3-6g / L, activated carbon fiber and soda ash Na 2 CO 3 The mass ratio is 1:10-15.

[0027] Step 2, preparing anhydrous N,N-dimethylformamide DMF;

[0028] Anhydrous magnesium sulfate was used to remov...

Embodiment

[0038] As an embodiment of the present invention, get activated carbon fiber 4g, add 50mL soda ash Na 2 CO 3 In solution, Na 2 CO 3 The solution concentration is 4g / L, boiled for 30min, rinsed and dried in an oven at 70°C; take 150mL of anhydrous DMF, add 3g of 4-aminopyridine, and slowly add ferric perchlorate anhydrous DMF solution to it under stirring conditions 50mL, the quality of ferric perchlorate is 2g, until a brownish-red liquid is formed; then add 50mL of anhydrous DMF solution of cyanuric chloride to the brownish-red liquid, the quality of cyanuric chloride is 6g, react in an ice bath for 4h, Obtain modified 4-aminopyridine iron solution; then add Na to the modified 4-aminopyridine iron solution 2 CO 3 4g of the treated activated carbon fiber was shaken and reacted in a constant temperature oscillator at 60°C for 10h, then washed with distilled water, and dried in an oven at 60°C to obtain FePy-ACFs. Take 2g of FePy-ACFs, put it in 100mL, 200mg / L methyl orange...

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Abstract

The invention provides a preparation method of a Fenton-like catalyst. The preparation method comprises the following steps: performing reaction on 4-aminopyridine and ferric perchlorate which serve as reaction precursors in an anhydrous N,N-dimethyl formamide solution to obtain 4-aminopyridine iron, and bonding the 4-aminopyridine iron to active carbon fibers to obtain the Fenton-like catalyst. The catalyst can quickly and effectively degrade organic pollutants, so that the problems that the pH value range for Fenton reaction is narrow and the catalyst is hard to recycle are solved.

Description

technical field [0001] The invention relates to a catalyst, in particular to a preparation method of a Fenton-like catalyst and its product and application. Background technique [0002] Nowadays, the discharge of industrial wastewater is huge, and generally has the following characteristics: large water volume, high toxicity, high chroma, strong acidity and alkalinity, complex components, low biodegradability, and unstable water quality. Traditional biochemical methods are difficult to meet the discharge standards. Difficult to govern. [0003] The Fenton oxidation technology is widely used in the treatment of refractory organic matter in the environment. This technology has the advantages of strong anti-interference ability and wide application range. ) provides a low-cost and high-efficiency source, thereby quickly and effectively degrading or even completely mineralizing organic pollutants, improving the biodegradability of wastewater, and laying the foundation for subs...

Claims

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Application Information

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IPC IPC(8): B01J31/22B01J35/06C02F1/72
CPCC02F1/722C02F1/725B01J31/1815C02F2305/026B01J35/58
Inventor 沙海涛吴云海明珠
Owner HOHAI UNIV
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