Preparation method of Fenton-like catalyst and application of Fenton-like catalyst to organic wastewater treatment
A catalyst, Fenton's technology, applied in the direction of catalyst activation/preparation, special compound water treatment, oxidized water/sewage treatment, etc., can solve the problems of complex treatment process, unfavorable popularization and application, complex synthesis method, etc., to expand the scope of application, Effect of less pollution and simple synthesis method
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Embodiment 1
[0027] Mix melamine, lithium chloride, potassium chloride, and ferric chloride uniformly, and record it as the first mixture, and the mass ratio of melamine, lithium chloride, potassium chloride, and ferric chloride is 1:9:11:0.005; Put the first mixture into a crucible, cover it, place it in a muffle furnace, heat it up to 400°C-500°C at a rate of 1°C-5°C per minute, keep it for 3 hours, and then cool it down to room temperature, which is recorded as No. The second mixture; the second mixture was washed with deionized water and dried in an oven at a drying temperature of 75° C. for 2.5 hours to obtain a Fenton-like catalyst.
[0028] 50mL contains a concentration of 1×10 -4 In the organic wastewater of M tetracycline hydrochloride, 50 mg of Fenton-like catalyst was added, and 0.4 mL of hydrogen peroxide with a mass fraction of 30% was added to adjust the pH value to 3, and the reaction time was 0.8 h.
[0029] The degradation rate of tetracycline hydrochloride in organic was...
Embodiment 2
[0031] Mix melamine, lithium chloride, potassium chloride, and ferric chloride uniformly, and record it as the first mixture, and the mass ratio of melamine, lithium chloride, potassium chloride, and ferric chloride is 1:9:11:0.02; Put the first mixture into a crucible, cover it, place it in a muffle furnace, heat it up to 400°C-500°C at a rate of 1°C-5°C per minute, keep it for 7 hours, and then cool it down to room temperature, which is recorded as the first The second mixture; the second mixture was washed with deionized water and dried in an oven at a drying temperature of 85° C. for 3.5 hours to obtain a Fenton-like catalyst.
[0032] 50mL contains a concentration of 1×10 -4 In the organic wastewater of M tetracycline hydrochloride, 50 mg of Fenton-like catalyst was added, and 0.4 mL of hydrogen peroxide with a mass fraction of 30% was added to adjust the pH value to 11, and the reaction time was 1 h.
[0033] The degradation rate of tetracycline hydrochloride in organic...
Embodiment 3
[0035] Mix melamine, lithium chloride, potassium chloride, and ferric chloride uniformly, and record it as the first mixture, and the mass ratio of melamine, lithium chloride, potassium chloride, and ferric chloride is 1:9:11:0.01; Put the first mixture into a crucible, cover it, place it in a muffle furnace, heat it up to 400°C-500°C at a rate of 1°C-5°C per minute, keep it for 5 hours, and then cool it down to room temperature, which is recorded as No. Two mixtures; the second mixture was washed with deionized water and then dried in an oven at a drying temperature of 80° C. for 3 hours to obtain a Fenton-like catalyst. The transmission electron microscope image of the Fenton-like catalyst is as follows figure 1 As shown, the Fenton-like catalyst has a short and thick nanotube shape, and the X-ray photoelectron spectroscopy analysis diagram of the Fenton-like catalyst is shown in figure 2 As shown, among them, C, N indicate that C was successfully prepared 3 N 4 , O is C ...
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