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A preparation method of ciprofloxacin adsorption and purification agent based on manganese dioxide/graphene oxide nanocomposite
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A nanocomposite material, ciprofloxacin technology, applied in the field of pollutant control, to achieve broad practical application prospects, low cost, and large material adsorption effect
Inactive Publication Date: 2021-05-18
NANCHANG HANGKONG UNIVERSITY
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Embodiment 1
[0021] Graphene oxide (GO) was prepared by modified Hummer's method.
[0022] Add 36.3mg (0.15mmol) of manganese acetate tetrahydrate and 50mg (0.34mmol) of glutamic acid into 1mL of deionized water, dissolve by ultrasonication for 10min, add 30mL of ethylene glycol under stirring, and then add 5mL of 3mg / mL GO dispersion, stirred for 30 minutes, then transferred the mixed liquid to a hydrothermal reaction kettle, reacted in an oven at 180°C for 6 hours, cooled after the reaction was complete, filtered and washed, and freeze-dried to obtain the product MnO 2 / GO. In products, MnO 2 The mass ratio to GO is about 1:1.
[0023] The SEM (field emission scanning electron microscope) of the product shows that the product is MnO 2 Nanoparticles are loaded on the GO sheet, and the composite material is folded into a certain 3D configuration, which is conducive to increasing the specific surface area of the material and improving its adsorption performance; the IR spectrum of the ...
Embodiment 2
[0025] Graphene oxide (GO) was prepared by modified Hummer's method.
[0026] Add 36.3mg (0.15mmol) of manganese acetate tetrahydrate and 50mg (0.34mmol) of glutamic acid into 1mL of deionized water, dissolve by ultrasonication for 10min, add 30mL of ethylene glycol under stirring, and then add 1mL of 3mg / mL GO dispersion, stirred for 30min, then transferred the mixed liquid to the reaction kettle, reacted in an oven at 180°C for 6h, cooled after the reaction was complete, filtered, washed, and freeze-dried to obtain the product MnO 2 / GO. In products, MnO 2 The mass ratio to GO is about 1:0.25.
Embodiment 3
[0028] Graphene oxide (GO) was prepared by modified Hummer's method.
[0029] Add 36.3mg (0.15mmol) of manganese acetate tetrahydrate and 50mg (0.34mmol) of glutamic acid into 1mL of deionized water, dissolve by ultrasonication for 10min, add 30mL of ethylene glycol under stirring, and then add 8.7mL of 3mg / mL GO dispersion liquid, stirred for 30min, then transferred the mixed liquid to the reactor, reacted in an oven at 180°C for 6h, cooled after the reaction was complete, filtered, washed, and freeze-dried to obtain the product MnO 2 / GO. In products, MnO 2 The mass ratio to GO is about 1:2.
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Abstract
The invention discloses a preparation method of a ciprofloxacin adsorption and purification agent based on manganese dioxide / graphene oxide nanocomposite material, which is characterized in that manganese acetate tetrahydrate and glutamic acid are formulated into a mixed solution, and then ethyl diol, and then add the GO dispersion. After fully stirring and mixing uniformly, carry out hydrothermal reaction. After the reaction, filter, wash, and freeze-dry to obtain the product MnO 2 / GO nanocomposites. The material has excellent adsorption and removal performance for ciprofloxacin, the technical method is simple and convenient to operate, the material performance is excellent, and it has good practical prospects.
Description
technical field [0001] The invention relates to a preparation method of a ciprofloxacin adsorption and purification agent based on a manganese dioxide / graphene oxide nanocomposite material, belonging to the field of pollutant control. Background technique [0002] Ciprofloxacin is a synthetic third-generation quinolone antibacterial drug with broad-spectrum antibacterial activity and good bactericidal effect. Bacteria are antibacterial. Therefore, ciprofloxacin is widely used in antibacterial medicine for humans and animals. However, because of its wide application, a large amount of ciprofloxacin enters the environment through human and animal excreta. When ciprofloxacin as an antibiotic enters the environment, it will destroy the ecological balance and produce drug-resistant superbugs. Excessive ciprofloxacin entering the human body will also cause damage to sensory organs and the nervous system. Therefore, the treatment of antibiotic wastewater including ciprofloxacin ...
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