Organic dye degradation catalyst based on heterogeneous Fenton-like reaction as well as preparation and application of organic dye degradation catalyst

An organic dye, Fenton reaction technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. Effective degradation effect and other issues, to achieve the effect of reducing dosage, low cost, and improving mesoporous structure

Pending Publication Date: 2022-05-17
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

MOFs as Fenton catalysts can catalyze H 2 o 2 Decomposition produces OH, which can effectively degrade organic pollutants in wastewater. However

Method used

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  • Organic dye degradation catalyst based on heterogeneous Fenton-like reaction as well as preparation and application of organic dye degradation catalyst
  • Organic dye degradation catalyst based on heterogeneous Fenton-like reaction as well as preparation and application of organic dye degradation catalyst
  • Organic dye degradation catalyst based on heterogeneous Fenton-like reaction as well as preparation and application of organic dye degradation catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A kind of preparation method of organic dye degradation catalyst based on heterogeneous Fenton-like reaction, its steps are as follows:

[0051] (1) Dissolve nickel acetate, cobalt acetate, and ferrous acetate with a ratio of substance amounts of 1:1:1 (the total substance amount is 1 mmol) into 10 mL of N,N-dimethylformamide to obtain solution A, and mix 1mmol of 2-aminoterephthalic acid was dissolved in 5mL of N,N-dimethylformamide to obtain solution B, then under magnetic stirring (rotation speed 300rpm), solution A was poured into solution B, and the reaction was mixed at room temperature for 30min ;

[0052] (2) ultrasonically treat the mixture described in step (1) at room temperature for 1 h (ultrasonic power is 500W), centrifuge to obtain the product after the treatment, and wash twice with N,N-dimethylformamide and ethanol, then The metal-organic framework catalyst was obtained by vacuum drying at 60 °C for 12 h, which was stored in a sealed container at room ...

Embodiment 2

[0057] A kind of preparation method of organic dye degradation catalyst based on heterogeneous Fenton-like reaction, its steps are as follows:

[0058] (1) Dissolve nickel acetate, cobalt acetate and ferrous acetate with the ratio of substance amount to 1:1:1 (the total substance amount is 1mmol) into 10mL N,N-dimethylformamide to obtain solution A, Dissolve 1 mmol of 2-aminoterephthalic acid into 5 mL of N,N-dimethylformamide to obtain solution B, then pour solution A into solution B under magnetic stirring (rotating speed 300 rpm), and mix and react at room temperature 30min;

[0059] (2) ultrasonically treat the mixed solution in step (1) for 1 h at room temperature, centrifuge to obtain the product after the treatment, wash twice with N,N-dimethylformamide and ethanol each, and then vacuum dry at 60°C 12h to obtain the metal-organic framework catalyst, which was stored in a sealed container at room temperature.

[0060] The application of the above-mentioned catalyst in ...

Embodiment 3

[0063] A kind of preparation method of organic dye degradation catalyst based on heterogeneous Fenton-like reaction, its steps are as follows:

[0064] (1) Dissolve nickel acetate, cobalt acetate, and ferrous acetate with a ratio of substance amounts of 1:1:1 (the total substance amount is 1 mmol) into 10 mL of N,N-dimethylformamide to obtain solution A, and mix 1mmol of 2-aminoterephthalic acid was dissolved in 5mL of N,N-dimethylformamide to obtain solution B, then under magnetic stirring (rotation speed 300rpm), solution A was poured into solution B, and the reaction was mixed at room temperature for 30min ;

[0065] (2) ultrasonically treat the mixed solution in step (1) for 1 h at room temperature, centrifuge to obtain the product after the treatment, wash twice with N,N-dimethylformamide and ethanol each, and then vacuum dry at 60°C 12h to obtain the metal-organic framework catalyst, which was stored in a sealed container at room temperature.

[0066] The application o...

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Abstract

The invention belongs to the technical field of sewage treatment, and discloses an organic dye degradation catalyst based on heterogeneous Fenton-like reaction as well as preparation and application thereof. The method comprises the following steps: reacting nickel acetate, cobalt acetate, ferrous acetate and 2-aminoterephthalic acid in a solvent to obtain a mixed solution; and performing ultrasonic treatment on the mixed solution to obtain the organic dye degradation catalyst. The organic dye degradation catalyst is a metal organic framework with a two-dimensional latticed structure and can catalyze H2O2 to be decomposed into. OH with strong oxidizing property, meanwhile, ultrasonic assistance not only improves the specific surface area and the mesoporous structure of MOFs, but also enhances charge transfer between catalytic active sites, and in combination with the synergistic catalytic effect of three metal ions, the catalytic activity of the organic dye degradation catalyst is improved. The catalytic activity of the metal organic framework is greatly enhanced, and the purpose of efficiently degrading organic pollutants is achieved. The organic dye degradation catalyst based on the heterogeneous Fenton-like reaction is used for degrading organic dye.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to an organic dye degradation catalyst based on a heterogeneous Fenton-like reaction and a preparation method and application thereof. Background technique [0002] In recent years, the discharge of industrial wastewater has been increasing, causing extremely serious pollution to water resources. Among them, dye wastewater is one of the most difficult pollutants in industrial production. Dyestuff wastewater mainly comes from industries such as printing, textile, paper and food. These wastewaters are complex in composition, high in organic content, large in molecular weight, and high in chroma. They are difficult to be biodegraded and therefore difficult to remove from the environment. [0003] Advanced oxidation technology has high removal efficiency for refractory organic pollutants in sewage, including ozone oxidation, photocatalytic oxidation, Fenton-like oxidation, et...

Claims

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Application Information

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IPC IPC(8): B01J31/22C02F1/72
CPCB01J31/1691B01J35/0013C02F1/722B01J2531/842B01J2531/845B01J2531/847B01J2531/0213C02F2305/026C02F2101/308
Inventor 孙大文周希艺蒲洪彬韦庆益
Owner SOUTH CHINA UNIV OF TECH
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