| abstract |
The invention discloses a novel ceria, a preparation method and an application. In the preparation process, ultrasonic waves are used for a period of time to obtain ceria. The preparation method includes the following steps: S1, dissolving cerium nitrate in water, then adding magnesium powder, ultrasonically treating for a period of time, and reacting to obtain ceria precipitates; S2 Centrifuge to separate the cerium dioxide precipitate; S3 drying to obtain light yellow cerium dioxide powder. The preparation method of the invention is simple and easy to operate, does not use large-scale equipment, and does not require high-temperature treatment; the prepared ceria has high photocatalytic degradation efficiency for tetracycline-type veterinary drug wastewater, and compared with commercial ceria, its degradation capacity is improved by 3-5 times. |