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A kind of FEBC amorphous alloy Fenton-like method for catalytic degradation of methylene blue sewage

An amorphous alloy, methylene blue technology, applied in the field of metal materials, can solve the problem of secondary pollution of the solution, and achieve the effect of easy operation, low degradation time, and realization of degradation and removal

Active Publication Date: 2022-02-18
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And the alloy contains more P elements, which may cause secondary pollution to the solution

Method used

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  • A kind of FEBC amorphous alloy Fenton-like method for catalytic degradation of methylene blue sewage
  • A kind of FEBC amorphous alloy Fenton-like method for catalytic degradation of methylene blue sewage
  • A kind of FEBC amorphous alloy Fenton-like method for catalytic degradation of methylene blue sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] At 25°C, take 100ml of 20mg / L methylene blue solution and adjust the pH value to 5 with dilute sulfuric acid. Aspirate 0.5 g of Fe with a magnetic stirrer rotor 81 B 10 C 9 For amorphous flakes, use a magnetic stirrer to stir the solution, add 0.5 ml of 30% mass fraction hydrogen peroxide, carry out magnetic stirring for 1.5 min, and use an ultraviolet spectrophotometer for photometric analysis.

[0036] Analysis results such as figure 1 As shown, when the reaction was carried out for 1.5 min, the characteristic peak of methylene blue had basically disappeared, indicating that the concentration of methylene blue was already very low at this time, and the dye had been basically removed.

Embodiment 2

[0038] At 25°C, take 100ml of 20mg / L methylene blue solution and adjust the pH value to 4 with dilute sulfuric acid. Aspirate 0.9 g of Fe with a magnetic stirrer rotor 82 B 8 C 10 For amorphous flakes, use a magnetic stirrer to stir the solution, add 0.9 ml of 30% mass fraction hydrogen peroxide, carry out magnetic stirring for 50 s, and use an ultraviolet spectrophotometer for photometric analysis.

[0039] Analysis results such as figure 1 As shown, when the reaction was carried out for 50 s, the characteristic peak of methylene blue had basically disappeared, indicating that the concentration of methylene blue was already very low at this time, and the dye had been basically removed.

Embodiment 3

[0041] At 25°C, take 100ml of 20mg / L methylene blue solution and adjust the pH to 3 with dilute sulfuric acid. Aspirate 1 g of Fe with a magnetic stirrer rotor 83 B 8 C 9 For amorphous flakes, use a magnetic stirrer to stir the solution, add 1 ml of 30% mass fraction hydrogen peroxide, carry out magnetic stirring for 25 s, and use an ultraviolet spectrophotometer for photometric analysis.

[0042] Analysis results such as figure 1 As shown, when the reaction was carried out for 25s, the characteristic peak of methylene blue had basically disappeared, indicating that the concentration of methylene blue was already very low at this time, and the dye had been basically removed.

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Abstract

The invention relates to a method for catalytically degrading methylene blue sewage by FeBC amorphous alloy-like Fenton. Using the molecular formula as Fe 80‑ 84 B 6‑13 C 5‑10 Catalytic degradation of methylene blue dye wastewater by Fe-based soft magnetic amorphous ribbons based on the Fenton-like method. The degradation step is: add sulfuric acid to 100ml of dye wastewater with a concentration of 20% at room temperature, adjust the pH value to 3-5, add 0.5-1g of FeBC amorphous slices and 0.5-1ml of 30% dye solution to the dye solution Hydrogen peroxide, use a magnetic stirrer to stir within 3 minutes, the methylene blue dye can be completely degraded. The invention has low production cost, simple process and very fast degradation rate, and has good application prospect in the treatment of dye wastewater.

Description

technical field [0001] The invention belongs to the field of metal materials, and in particular relates to a method for catalytically degrading methylene blue sewage by FeBC amorphous alloy-like Fenton. Background technique [0002] With the rapid development of economy, azo dyes produced by textile and other industries are one of the most important sources of water pollution. There are three main methods for treating azo dyes in aqueous solution: biological treatment, adsorption and metal degradation. The metal degradation method showed clear advantages in purifying azo dye solutions. In addition, it has been found that amorphous alloy powder shows superiority in the degradation of azo dye solution, and can maintain high degradation efficiency in various complex environments, and the reductive degradation efficiency of amorphous iron powder for azo dye is better than that of general zero-valent Iron powder is 200 times faster. [0003] However, the current amorphous allo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/20C02F1/72C02F101/38
CPCB01J27/20C02F1/725C02F2101/308C02F2101/38C02F2305/026
Inventor 李雪莲王丽任达宫建红黄勇
Owner SHANDONG UNIV
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