| abstract |
The invention relates to multi-level mesoporous bronze phase/anatase phase heterojunction TiO2, a green preparation method and its application in antibiotic degradation, and belongs to the fields of green, clean synthesis and photocatalysis. Taking urea and lactic acid as hydrogen bond donors and sharing the same hydrogen bond acceptor choline chloride as a solvent, template agent and crystal form regulator, a deep eutectic solvent synthesized, and tetrabutyl titanate as a titanium source, the reaction temperature was 110 ℃～180℃, the reaction time is 1h-48h to prepare tremella-like bronze phase/anatase phase heterojunction titania catalyst. The catalyst is self-assembled from mesoporous ultrathin nanosheets and has a large specific surface area. In addition, the obtained Tremella-like TiO2 exhibited high activity in the photocatalytic degradation of multiple antibiotics in water. The method has the advantages of mild and green synthesis process, large specific surface area, bronze phase/anatase phase heterojunction, easy batch preparation, degradable various antibiotics and high degradation efficiency. |