Catalyst for oxidative degradation of antibiotic wastewater based on microwave rapid activation of peracetic acid and preparation and application methods thereof
A technology of antibiotic wastewater and peracetic acid, which is applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the practical application that limits the advanced oxidation of peracetic acid, the low initial concentration of degraded antibiotics, Long reaction time and other problems, to achieve the effects of good catalytic oxidation ability, good stability and reusability, and excellent magnetic properties
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Embodiment 1
[0034] In this example, a boron nitride quantum dot-modified metal cobalt element substituted manganese ferrite composite catalyst was prepared, and used as a catalyst in a microwave-activated peracetic acid system, and tetracycline hydrochloride was selected as the target pollutant for the oxidative degradation of antibiotics. The specific technical solutions are as follows:
[0035] (1) Synthesis of boron nitride quantum dots modified metal cobalt element substituted manganese ferrite composite catalyst:
[0036] Dissolve 2.7029g of ferric chloride, 0.494775g of manganese chloride and 0.727575g of cobalt chloride in 20mL of ultrapure water, and after ultrasonic treatment at room temperature for 20 minutes, make it into a well-mixed solution; then dropwise under stirring conditions Add 4M NaOH 25mL to produce a black precipitate, then, add 5mL of 1mg / mL boron nitride quantum dots to it, and continue to stir until the mixture is uniform; finally, the mixture is placed in a mic...
Embodiment 2
[0041] In this example, a boron nitride quantum dot-modified metal cobalt element substituted manganese ferrite composite catalyst was prepared, and used as a catalyst, in a microwave-activated peracetic acid system, sulfadiazine was selected as the target pollutant to carry out the oxidative degradation of antibiotics. The specific technical solutions are as follows:
[0042] (1) Synthesis of boron nitride quantum dots modified metal cobalt element substituted manganese ferrite composite catalyst:
[0043] Dissolve 2.7029g of ferric chloride, 0.59373g of manganese chloride and 0.58206g of cobalt chloride in 20mL of ultrapure water, after sonicating at room temperature for 20 minutes, to form a well-mixed solution, then dropwise add 4M under stirring conditions NaOH 20mL to produce a black precipitate, then, add 4mL of 1mg / mL boron nitride quantum dots to it, continue to stir until the mixture is uniform, and finally, place the mixture in a microwave reactor, and the microwave...
Embodiment 3
[0047] In this example, a boron nitride quantum dot-modified metal cobalt element substituted manganese ferrite composite catalyst was prepared, and used as a catalyst, in a microwave-activated peracetic acid system, sulfamethoxazole was selected as the target pollutant to oxidize antibiotics degradation. The specific technical solutions are as follows:
[0048] (1) Synthesis of boron nitride quantum dots modified metal cobalt element substituted manganese ferrite composite catalyst:
[0049] Dissolve 2.7029g of ferric chloride, 0.692685g of manganese chloride and 0.436545g of cobalt chloride in 20mL of ultrapure water, after sonicating at room temperature for 20 minutes, to form a well-mixed solution, then dropwise add 4M under stirring conditions NaOH 15mL to produce a black precipitate, then, add 3mL of 1mg / mL boron nitride quantum dots to it, continue to stir until the mixture is uniform, and finally, place the mixture in a microwave reactor, and the microwave-assisted hy...
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