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Catalyst for rapidly activating persulfate to oxidize and degrade antibiotic wastewater as well as preparation and application methods of catalyst

A technology for activating persulfate and antibiotic wastewater, applied in physical/chemical process catalysts, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve the problems of long reaction time, limitations, etc., to improve capacity and facilitate reuse and recycling, good removal effect

Active Publication Date: 2022-02-11
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only the authorized announcement number CN 108640249 B introduced a method based on boron and neodymium modified soft bismuth ore bismuth ferrite catalyzed persulfate to remove residual endocrine disruptors in water, but this method is used to remove lower concentrations of endocrine disruptors And it requires a long reaction time, which also limits the practical application of this method

Method used

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  • Catalyst for rapidly activating persulfate to oxidize and degrade antibiotic wastewater as well as preparation and application methods of catalyst
  • Catalyst for rapidly activating persulfate to oxidize and degrade antibiotic wastewater as well as preparation and application methods of catalyst
  • Catalyst for rapidly activating persulfate to oxidize and degrade antibiotic wastewater as well as preparation and application methods of catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0032] This embodiment provides a catalyst for rapidly activating persulfate oxidative degradation of antibiotic wastewater, which is a bismuth ferrite composite catalyst co-modified with magnetic silver and black phosphorus quantum dots, and its preparation method is as follows:

[0033] Add 4.04g of ferric nitrate, 2.425g of bismuth nitrate and 0.839g of silver nitrate in 10mL of ultrapure water for 20min to dissolve them, then add 10mL of 10mol / L sodium hydroxide solution drop by drop, stir magnetically to mix evenly, then add 5mL of 1mg / mL black phosphorus quantum dots, stirred for 12h. React with water heat at 180°C for 10h, after cooling to room temperature, discard the supernatant, wash the precipitate with deionized water and absolute ethanol alternately for 6 times, dry at 60°C for 6h, and obtain magnetic silver and black phosphorus quanta after grinding Dot co-modified bismuth ferrite composite catalyst.

[0034] Characterization of magnetic silver and black phosph...

Embodiment 2

[0045] This embodiment provides a catalyst for rapidly activating persulfate oxidative degradation of antibiotic wastewater, which is a bismuth ferrite composite catalyst co-modified with magnetic silver and black phosphorus quantum dots. Add 10 mL of ultrapure water to 1 g of bismuth nitrate and ultrasonically dissolve it for 20 minutes, then add 10 mL of 10 mol / L sodium hydroxide solution drop by drop, stir evenly with magnetic force, add 5 mL of 1 mg / mL black phosphorus quantum dots, and stir for 12 hours. React in water at 180°C for 10 hours, after cooling to room temperature, discard the supernatant, wash the precipitate 6 times alternately with water and absolute ethanol, dry at 60°C for 6 hours, and obtain co-modification of magnetic silver and black phosphorus quantum dots after grinding Bismuth ferrite composite catalyst.

[0046] The present embodiment also provides the application method of the above-mentioned magnetic silver and black phosphorus quantum dots co-mod...

Embodiment 3

[0048] This embodiment provides a catalyst for rapidly activating persulfate oxidative degradation of antibiotic wastewater, which is a bismuth ferrite composite catalyst co-modified with magnetic silver and black phosphorus quantum dots. The preparation method is as follows: 0.5061 g of silver nitrate, 4.04 g of Add 10 mL of ultrapure water to 10 g of bismuth nitrate and ultrasonically dissolve it for 20 minutes, then add 10 mL of 10 mol / L sodium hydroxide solution dropwise, stir evenly with magnetic force, add 3 mL of 1 mg / mL black phosphorus quantum dots, and stir for 12 hours. React in water at 180°C for 8 hours, after cooling to room temperature, discard the supernatant, wash the precipitate with water and absolute ethanol 6 times alternately, dry at 60°C for 6 hours, and obtain magnetic silver and black phosphorus quantum dots co-modification after grinding Bismuth ferrite composite catalyst.

[0049] This embodiment also provides the application method of the above-ment...

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Abstract

The invention discloses a catalyst for rapidly activating persulfate to oxidize and degrade antibiotic wastewater and a preparation and application method of the catalyst. The catalyst is a magnetic silver and black phosphorus quantum dot co-modified bismuth ferrite composite catalyst. The preparation method of the catalyst comprises the steps of adding silver nitrate and bismuth ferrite precursors into water for mixing and dissolving, a dropwise adding sodium hydroxide solution, uniformly conducting stirring, adding black phosphorus quantum dots, and conducting stirring; then transferring the stirred materials into a hydrothermal reaction kettle for synthesis; and washing and drying a synthetic substance after the reaction is finished. The catalyst has the advantages of excellent degradation effect, recoverability and the like.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, relates to a catalyst for degrading antibiotic waste water, in particular to a catalyst for rapidly activating persulfate oxidation and degrading antibiotic waste water, and a preparation and application method thereof. Background technique [0002] Antibiotic-containing wastewater mainly comes from industries such as livestock and poultry breeding wastewater, medical wastewater, and pharmaceutical wastewater. The wastewater mainly includes macrolides, tetracyclines, sulfonamides, quinolones, β-lactams, aminoglycosides, and chloramphenicol. These pollutants can enter the human body in various ways, causing certain damage to organs such as the liver and kidney, and can also cause allergic reactions and damage the nervous system, which can change the body's function or tissue structure. Severe cases can lead to the occurrence of cancer. Therefore, the rapid and efficient removal of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/187B01J35/00C02F1/72C02F101/38C02F101/30
CPCB01J27/187C02F1/725C02F2101/40C02F2101/38C02F2101/30B01J35/33Y02W10/37
Inventor 李硕郑禾山栗洪彬吴亚楠郑永杰杨亚伦荆涛刘鑫然林繁雪
Owner QIQIHAR UNIVERSITY
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