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Method for degrading antibiotics

An antibiotic and magnetic technology, applied in chemical instruments and methods, natural water treatment, special compound water treatment, etc., can solve the problems of secondary pollution of water body, high cost, hydrogen peroxide or persulfate cannot be recycled and reused, and achieve The effect of reducing the preparation cost, low cost and shortening the preparation cycle

Inactive Publication Date: 2018-09-04
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the classic method of treating antibiotics in water is the advanced oxidation method, which is based on sulfuric acid free radicals (SO 4 - The advanced oxidation technology of ) and hydroxyl radical ( OH) has high efficiency for degradation, and has received extensive attention at home and abroad in recent years, but the advanced oxidation method also has obvious shortcomings. The hydrogen peroxide or persulfate used in this technology It cannot be recycled and reused, the cost is high, and the sulfate ion will cause secondary pollution of the water body

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] This example studies magnetic MIL-101(Fe) / TiO 2 For the degradation effect of tetracycline, the specific steps are as follows:

[0026] (1) Magnetic MIL-101(Fe) / TiO 2 Preparation: Dissolve ferric chloride hexahydrate, terephthalic acid, and titanium dioxide in a molar ratio of 1:1:1 in 80 mL of DMF, and after stirring for 1 hour, transfer the solution to a 100 mL Teflon-lined In the reaction kettle, place the reaction kettle in a blast drying oven, take out the reaction kettle after reacting at 120°C for 8 hours, cool the reaction kettle to room temperature naturally, take out the product after the reaction kettle is cooled, and filter it with a sand core funnel, and use DMF and ethanol were rinsed repeatedly three times, dried at 60°C for 3 hours, and then placed in a muffle furnace for constant temperature oxidation at 350°C for 5 minutes. Then, the obtained material was adsorbed by a strong magnet through weighing paper, and the impurities that did not impart magnet...

Embodiment 2

[0035] This embodiment studies magnetic MIL-101(Fe) / TiO 2 For the degradation effect under different antibiotic concentrations, the specific steps are as follows:

[0036] (1) Magnetic MIL-101(Fe) / TiO 2 Preparation: Dissolve ferric chloride hexahydrate, terephthalic acid and titanium dioxide in a molar ratio of 1:1:1 in 80mL of DMF, and after stirring for 1 hour, transfer the solution to a 100mL polytetrafluoroethylene-lined reaction Place the reaction kettle in a blast drying oven, take out the reaction kettle after reacting at 120°C for 8 hours, cool the reaction kettle to room temperature naturally, take out the product after the reaction kettle is cooled, filter it with a sand core funnel, and filter it with DMF Rinse with ethanol three times, dry at 60°C for 3 hours, put it in a muffle furnace for constant temperature oxidation at 350°C for 1 minute, then use a strong magnet to absorb the obtained material through weighing paper, blow out the impurities that do not impar...

Embodiment 3

[0045]This implementation case study magnetic MIL-101(Fe) / TiO 2 The effect of the dosage (0.1, 0.4, 0.7, 1.0g / L) on the degradation of tetracycline, the specific steps are as follows:

[0046] (1) Magnetic MIL-101(Fe) / TiO 2 Preparation: Dissolve ferric chloride hexahydrate, terephthalic acid and titanium dioxide in a molar ratio of 1:1:1 in 80mL of DMF, and after stirring for 1 hour, transfer the solution to a 100mL polytetrafluoroethylene-lined reaction The reactor was placed in a forced air drying oven, and after reacting at 120°C for 8 hours, the reactor was taken out, and the reactor was naturally cooled to room temperature. After the reaction kettle was cooled, the product was taken out with a sand core funnel for suction filtration, washed three times with DMF and ethanol, dried at 60°C for 3 hours, then placed in a muffle furnace for constant temperature oxidation at 250°C for 5 minutes, and then the obtained material was washed with strong The magnet is adsorbed thro...

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Abstract

The invention discloses a method for degrading antibiotics. The method comprises the following steps: adding a magnetic MIL-101(Fe) / TiO2 material into a water body containing antibiotics to degrade the antibiotics under normal temperature and light source irradiation; and then magnetically recovering the magnetic MIL-101(Fe) / TiO2 material for recycling. The magnetic MIL-101(Fe) / TiO2 composite material is easy to be magnetically separated and recovered, still maintanis excellent degradation performance after repeated reuse, and is a green environment-friendly material; and the composite material is simple to prepare, convenient to operate, reduced in energy consumption and short in catalytic time, shows extremely high degradation effect on antibiotics under sunlight, and has good application prospects in degradation nof antibiotics.

Description

technical field [0001] The invention belongs to the technical field of environmental material preparation, and in particular relates to a method for degrading antibiotics. Background technique [0002] In the past few decades, the pollution of pharmaceutical wastewater has threatened the ecosystem and human health. The abuse of antibiotics has not only led to some adverse drug reactions, but also caused drug resistance to bacteria and produced superbugs. Antibiotics themselves have good stability and are difficult to degrade. Antibiotics discharged into rivers will enter animal husbandry, soil and domestic water, and finally enter human bodies, thereby affecting people's health. At present, the classic method of treating antibiotics in water is the advanced oxidation method, which is based on sulfuric acid free radicals (SO 4 - The advanced oxidation technology of ) and hydroxyl radical ( OH) has high efficiency for degradation, and has received extensive attention at home...

Claims

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Application Information

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IPC IPC(8): C02F1/30C02F101/34C02F101/38C02F103/34C02F101/36
CPCC02F1/30C02F2305/10C02F2101/38C02F2101/36C02F2101/34C02F2103/343
Inventor 陕绍云何磊贾庆明蒋丽红王亚明
Owner KUNMING UNIV OF SCI & TECH
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