The Study of the Effect of Titanium Dioxide - Surfactant Compound on Cefoperazone Treatment

摘要

efoperazone wastewater's composition is complex, of high COD, biodegradability is relatively poor, while TiO_2 photocatalytic oxidation method is of high efficiency, safe, non-toxic and simple to operate, which can be used as a treatment method. The effect of hexadecyltrimethylammonium bromide (CTAB) on the photocatalytic oxidation of TiO_2 was also discussed. The TiO_2 photocatalyst was investigated by sol-gel method. The TiO_2 photocatalyst was coated with CTAB, and the dosing amount was 5%. Treating cefoperazone as the target degradation products and the degradation rate of cefoperazone was determined by the change of COD value. The effects of photocatalyst dosage, light time, pH and other factors on the photocatalytic activity were investigated in this experiment. The results showed that the photocatalytic degradation efficiency was the highest when the dosage of TiO_2-CTAB was 0.12g, the irradiation time was 5h and pH was 7. The degradation rate of cefoperazone antibiotic wastewater was 95.1% with the best experimental solution.