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A method for catalyzing monopersulfate to generate sulfate radicals to degrade organic matter

A technology for refractory organics, persulfate, applied in chemical instruments and methods, molecular sieve catalysts, chemical/physical processes, etc.

Active Publication Date: 2021-08-20
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention aims at the existing deficiencies in the degradation of organic pollutants in the prior art, and provides a method for catalyzing monopersulfate to produce sulfate radicals to degrade organic matter

Method used

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  • A method for catalyzing monopersulfate to generate sulfate radicals to degrade organic matter
  • A method for catalyzing monopersulfate to generate sulfate radicals to degrade organic matter
  • A method for catalyzing monopersulfate to generate sulfate radicals to degrade organic matter

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Embodiment 1

[0041] A method for catalyzing monopersulfate to produce sulfate radicals to degrade organic matter, comprising the following steps:

[0042] A. Preparation of Cu 0.76 co 2.24 o 4 / SBA-15 catalyst

[0043] a. Accurately weigh 0.4938gCo(NO 3 ) 2 ▪6H 2 O and 0.1543gCu(NO 3 ) 2 ▪3H 2 O in a 100mL beaker, ultrasonically dissolved with 40mL triple distilled water, and then 1.0000g SBA-15 molecular sieve was added to it for ultrasonic dissolution for 30min;

[0044] b. Put the mixed solution after ultrasonic dissolution in step a into a magnetic stirrer, stir and evaporate until there is no obvious water in the mixed solution, wherein the stirring temperature of the magnetic stirrer is 60°C;

[0045] c. drying the magnetically stirred mixture in step b at 100° C. for 12 hours to obtain a molecular sieve mixture;

[0046] d. Place the molecular sieve mixture prepared in step c into a tube furnace for roasting, wherein the heating rate of the tube furnace is 2° / min, and roa...

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Abstract

The invention belongs to the technical field of organic waste water treatment, and relates to a method for catalyzing potassium monopersulfate to produce sulfate radicals to degrade organic matter. Co(NO 3 ) 2 ▪6H 2 O, Cu(NO 3 ) 2 ▪3H 2 O and SBA‑15 molecular sieves were ultrasonically dissolved and placed in a tube furnace for roasting, drying and grinding to obtain Cu 0.76 co 2.24 o 4 / SBA‑15 catalyst with Cu 0.76 co 2.24 o 4 / SBA‑15 catalyst activates monopersulfate to degrade sulfapyridine solution, due to Cu in the catalyst 0.76 co 2.24 o 4 Evenly attached to the pores or surfaces of SBA-15, it can effectively enhance the stability of the catalyst in the reaction system, and at the same time increase the reaction site between the monopersulfate and the catalyst, and the high specific surface area of ​​SBA-15 effectively improves the activation The rate of sulfate radicals makes the reaction faster, effectively improves the utilization rate of reactants, and greatly improves the degradation efficiency.

Description

technical field [0001] The invention belongs to the technical field of organic wastewater treatment, and relates to a method for catalyzing monopersulfate to generate sulfate radicals to degrade organic matter, in particular to a Cu 0.76 co 2.24 o 4 / SBA-15 catalyzes potassium monopersulfate to generate sulfate radicals to degrade sulfapyridine. Background technique [0002] Advanced oxidation technology refers to the method of using strong oxidizing free radicals generated in the reaction as the main oxidant to oxidize and decompose organic pollutants in water. At present, the most commonly used advanced oxidation technology is mainly the Fenton method, and based on the sulfate radical (chemical formula: SO 4 -·) advanced oxidation technology is a new type of advanced oxidation technology that has been explored in recent years. SO 4 -·Has a very strong standard oxidation-reduction potential (2.5-3.1V), and it is theoretically believed that it can oxidize and degrade mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/72B01J29/76C02F101/38
CPCB01J29/7607C02F1/72C02F1/725C02F2101/40
Inventor 何家洪滕柳梅李强安继斌吴云
Owner CHONGQING UNIV OF ARTS & SCI
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