Dissolved biochar promoted photodegradation of tetracycline in aqueous environment

As one of the frequently detected antibiotics in aqueous environment, environmental behaviour tetracycline has received increasing attention. Dissolved biochar (DBC) is an essential component dissolved organic matter (DOM) water enviroment. However, effect DBC on photodegradation was unclear. This study investigated impact solution under light illumination. The main components were humic acid-like and fulvic acid-like, accounting for 78.2% total components. surface had more oxygen-containing functional groups aromatic groups. increased tetracyline by 46.9%, which related to structure DBC. These findings would provid theoretical support environment.