Iron-based amorphous alloy powder for degradation of dye waste liquid and preparation method and application of iron-based amorphous alloy powder

A technology of iron-based amorphous alloy and dye waste liquid, applied in chemical instruments and methods, water pollutants, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of complex preparation process and degradation rate of dye degradation catalysts Slow, low degradation rate and other problems, to achieve the effect of fast catalytic degradation reaction rate, improved degradation rate, and high degradation rate

Active Publication Date: 2019-03-08
SOUTHEAST UNIV +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Purpose of the invention: In view of the existing deficiencies, the present invention provides a new process for preparing iron-based amorphous alloy powder for degrading waste liquid dyes. The amorphous powder prepared by this process can effectively avoid the degradation of dye catalysts. Disadvantages such as complexity, high cost, slow degradation rate, and low degradation rate

Method used

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  • Iron-based amorphous alloy powder for degradation of dye waste liquid and preparation method and application of iron-based amorphous alloy powder
  • Iron-based amorphous alloy powder for degradation of dye waste liquid and preparation method and application of iron-based amorphous alloy powder
  • Iron-based amorphous alloy powder for degradation of dye waste liquid and preparation method and application of iron-based amorphous alloy powder

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Embodiment 1

[0045] This embodiment studies the industrial Fe after ultrasonic treatment 78 Si 9 B 13 Ability of iron-based amorphous powders to degrade methylene blue.

[0046] Step 1: The industrial pure Fe, Si, B elements according to the molecular formula Fe 78 Si 9 B 13 Prepare raw materials, use electric arc furnace to melt into a uniform master alloy, remelt the melted master alloy into alloy liquid and spray cast it on the surface of a high-speed rotating copper roller with a speed of 30m / s to obtain an iron-based amorphous alloy with a uniform composition Strips; put the prepared industrial amorphous strips into a ball mill (air atmosphere) for 24 hours at high speed to obtain Fe with a particle size distribution of 1-50 μm 78 Si 9 B 13 Iron-based amorphous alloy powder for industrial use.

[0047] Step 2: Incorporate industrial Fe 78 Si 9 B 13 The amorphous powder is ultrasonically treated under ultrasonic trigger pressure of 100N, amplitude of 100%, working pressure o...

Embodiment 2

[0061] This embodiment has studied solution pH value to industrial Fe 78 Si 9 B 13 The effect of amorphous powders on the ability to catalyze the degradation of methylene blue.

[0062] Step 1: The industrial powder is subjected to ultrasonic treatment under ultrasonic energy of 500KPa and 750J.

[0063] Step 2: Add 250mL of methylene blue solution with a concentration of 100mg / L to a beaker with a capacity of 500mL, put the beaker in a constant temperature water bath with a temperature of 25°C to keep warm, add hydrogen peroxide after the solution temperature is stable, adjust the concentration of hydrogen peroxide to 1mM, adjust Solution pH to 2,3,4,5,9.

[0064] Step 3: Put the iron-based amorphous powder prepared in step 1 into a beaker after weighing according to the amount of 0.4 g / L of the methylene blue solution. The solution is mechanically stirred by a mechanical stirring device, so that the industrial Fe 78 Si 9 B 13 The amorphous powder is in uniform contact...

Embodiment 3

[0071] This embodiment has explored the industrial Fe in the solution 78 Si 9 B 13 Effect of the amount of amorphous powder on the ability of catalytic degradation of methylene blue.

[0072] Step 1: The industrial powder is subjected to ultrasonic treatment under ultrasonic energy of 500KPa and 750J.

[0073] Step 2: Add 250mL of methylene blue solution with a concentration of 100mg / L to a beaker with a capacity of 500mL, put the beaker in a constant temperature water bath with a temperature of 25°C to keep warm, add hydrogen peroxide after the solution temperature is stable, adjust the concentration of hydrogen peroxide to 1mM, adjust The pH of the solution is 3.

[0074]Step 3: Weigh the iron-based amorphous powder prepared in step 1 according to the amount of 0.1g / L, 0.2g / L, 0.3g / L, 0.4g / L, and 0.5g / L according to the amount of methylene blue solution, and put it into in the beaker. The solution is mechanically stirred by a mechanical stirring device, so that the indu...

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Abstract

The invention discloses a method for preparing iron-based amorphous alloy powder for dye degradation. According to the method, on the premise of meeting the market application requirements, combined with the existing process conditions in actual production, the iron-based amorphous powder is obtained by ultrasonic processing. The invention further discloses application of the amorphous powder after ultrasonic processing used for degrading dye waste liquid. In the process of degradation, different ultrasonic energy and powder dosage are considered specifically and correspondingly, and finally an optimal degradation processing condition is obtained. According to the method for preparing the iron-based amorphous alloy powder for dye degradation, not only is the dye waste liquid degraded, butalso the industrial waste iron-based amorphous powder is effectively utilized, good application prospects in sewage treatment are achieved, and the great significance to environmental protection and sustainable development is achieved.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to an iron-based amorphous alloy powder for degrading waste liquid dyes, a preparation method and application thereof. Background technique [0002] With the rapid development of industry, a large amount of dye waste liquid is discharged, which poses a serious threat to the sustainable development of human health and ecological environment. At present, the most widely used dye waste treatment technologies include physical adsorption, chemical flocculation, membrane separation, chemical oxidation, and biodegradation. However, due to the inherent shortcomings of the technology itself, most dye waste liquid treatment technologies cannot meet the requirements of completely and effectively degrading the dye waste liquid; The cost is high, there is secondary pollution, and it is difficult to put it into use on a large scale; the biodegradation method shows green and pollution-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/04B01J23/745C02F1/72C02F101/36C02F101/38
CPCB01J23/745B22F9/002B22F9/04B22F2009/043C02F1/722C02F1/725C02F2101/308C02F2101/36C02F2101/38C02F2101/40
Inventor 袁晨晨吕祝薇马将闫玉强霍利山沈宝龙
Owner SOUTHEAST UNIV
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