| abstract |
The invention discloses a method for degrading low-concentration antibiotics in an aqueous solution by a SEP@CTFs composite material under visible light catalysis. At room temperature, the SEP@CTFs composite material was added to the wastewater containing antibiotics, and stirred in the dark to make the antibiotic molecules gradually reach the equilibrium of adsorption and desorption in the cavity and surface of the SEP@CTFs composite material, and then turn on the visible light source for photocatalytic reaction. Under the action of visible light, the CTFs composite material undergoes electron transition to generate holes and electron pairs. The holes and electrons can be further converted into reactive oxygen species with strong oxidizing properties, and further mineralize and degrade the antibiotics in the aqueous solution, thereby purifying the antibiotics containing antibiotics. waste water. The SEP@CTFs composite material prepared by the invention has good stability in aqueous solution, is easy to recover, and can be used repeatedly. The invention has low cost, high treatment efficiency and simple operation, and has great potential in the technical field of treatment of refractory antibiotic-containing wastewater. |