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Method for treating antibiotics in water body by coupling magnetic nano material to persulfate

A technology of persulfate and antibiotics, applied in water/sewage treatment, chemical instruments and methods, adsorbed water/sewage treatment, etc., can solve the problems of poor stability, difficult reuse, low catalytic activity, etc., and achieve low cost and high cost. Application value and commercial value, the effect of promoting mass transfer process

Inactive Publication Date: 2020-09-04
湖南垚恒环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing MOF materials often have problems such as poor stability, low catalytic activity, and difficulty in recycling.

Method used

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  • Method for treating antibiotics in water body by coupling magnetic nano material to persulfate
  • Method for treating antibiotics in water body by coupling magnetic nano material to persulfate
  • Method for treating antibiotics in water body by coupling magnetic nano material to persulfate

Examples

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Effect test

Embodiment 1

[0037] A method for treating antibiotic-containing water using magnetic cobalt nanoparticles confined to nitrogen-doped porous carbon material (Co@NC-800) coupled with persulfate system, specifically using magnetic cobalt nanoparticles confined to nitrogen doping The porous carbon material (Co@NC-800) catalyzes the degradation of tetracycline hydrochloride in water, including the following steps:

[0038] Weigh 20mg of magnetic cobalt nanoparticles confined to a nitrogen-doped porous carbon material (Co@NC-800), and add to 100mL, 5 portions of 30mg / L tetracycline hydrochloride solution, at a rotation speed of 200r / min Oscillate for 0.5h. After reaching the adsorption equilibrium, add 0.05g / L, 0.1g / L, 0.2g / L, 0.3g / L and 0.4g / L persulfate to explore the limitation of the amount of persulfate on the magnetic cobalt nanoparticles Due to the effect of nitrogen-doped porous carbon materials on the catalytic degradation of tetracycline hydrochloride.

[0039] In this embodiment, the mag...

Embodiment 2

[0045] A method for treating antibiotic-containing water using magnetic cobalt nanoparticles confined to nitrogen-doped porous carbon material (Co@NC-800) coupled with persulfate system, specifically using magnetic cobalt nanoparticles confined to nitrogen doping The porous carbon material (Co@NC-800) catalyzes the degradation of tetracycline hydrochloride in water, including the following steps:

[0046] Weigh 20mg of magnetic cobalt nanoparticles confined to nitrogen-doped porous carbon material (Co@NC-800), add to 100mL, and the concentrations are 5mg / L, 10mg / L, 20mg / L, 30mg / L, 50mg / L and a 70mg / L tetracycline hydrochloride solution were shaken and adsorbed for 0.5h at a rotation speed of 200r / min. After reaching the adsorption equilibrium, 0.2g / L persulfate was added to explore the effect of different initial concentrations of tetracycline hydrochloride on the catalytic performance of magnetic cobalt nanoparticles confined to nitrogen-doped porous carbon materials.

[0047] T...

Embodiment 3

[0049] A method for treating antibiotic-containing water using magnetic cobalt nanoparticles confined to nitrogen-doped porous carbon material (Co@NC-800) coupled with persulfate system, specifically using magnetic cobalt nanoparticles confined to nitrogen doping The porous carbon material (Co@NC-800) catalyzes the degradation of tetracycline hydrochloride in water, including the following steps:

[0050] Weigh 20mg of magnetic cobalt nanoparticles confined to nitrogen-doped porous carbon material (Co@NC-800), add to 100mL, 30mg / L, pH 2, 4, 6, 8, 10 and 12 In the tetracycline hydrochloride solution, oscillate and adsorb for 0.5h at a rotation speed of 200r / min. After reaching the adsorption equilibrium, 0.2g / L persulfate was added to explore the effect of the initial pH value of different tetracycline hydrochloride on the catalytic performance of magnetic cobalt nanoparticles confined to nitrogen-doped porous carbon materials.

[0051] The adsorption equilibrium time point is the ...

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Abstract

The invention discloses a method for treating antibiotics in a water body by coupling a magnetic cobalt nanoparticle confined nitrogen-doped porous carbon material to a persulfate system. The method comprises the following steps: carrying out oscillation and mixed adsorption on a magnetic cobalt nanoparticle confined nitrogen-doped porous carbon material and a water body containing antibiotics, adding a certain amount of persulfate to complete degradation of antibiotics in the water body, and finally, sucking out the material by using a commercial magnet, and washing the material for reuse. The magnetic cobalt nanoparticle confined nitrogen-doped porous carbon material comprises magnetic cobalt nanoparticles and a nitrogen-doped porous carbon material, and the magnetic cobalt nanoparticlesare confined to the nitrogen-doped porous carbon material. The method for treating antibiotics in a water body by coupling a magnetic cobalt nanoparticle confined nitrogen-doped porous carbon material to a persulfate system is simple in treatment process, convenient to operate, simple in equipment, low in cost, high in treatment efficiency, good in removal effect, high in repeated utilization rate, clean and pollution-free, is a treatment method which can be widely used and can be used for efficiently removing antibiotics, and has very high application value and commercial value.

Description

Technical field [0001] The invention belongs to the field of water treatment containing antibiotics, and relates to a method for treating antibiotics in a water body, in particular to a method for treating antibiotics in a water body by using magnetic cobalt nanoparticles confined to a nitrogen-doped porous carbon material coupled with a persulfate system . Background technique [0002] In recent decades, the mass production and consumption of pharmaceuticals and personal care products (PPCPs) have brought threats to the aquatic environment and human health. Advanced oxidation is a method of generating reactive oxygen species (ROS). Because of its high degree of mineralization of organic pollutants and simple operation, it is widely used in solution treatment. Persulfate (PMS) is a typical oxidant, which uses irradiation, heating, ultrasound, transition metal catalysis and other methods to activate persulfate to generate active oxygen for solution repair. Compared with physical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06B01J20/28B01J27/24C02F1/28C02F1/72B01J20/30C02F101/38C02F101/36
CPCB01J20/02B01J20/06B01J20/28009B01J20/28061B01J27/24C02F1/281C02F1/725C02F1/722B01J20/3078C02F2101/36C02F2101/38B01J35/33
Inventor 钟仁华李威彭诗阳朱娟钟吉华李和平
Owner 湖南垚恒环境科技有限公司
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