以SBA-15为模板、钛酸丁酯（TBT）为Ti源，采用溶胶-凝胶法复合磁性纳米洋葱碳（MCNOs）制备TiO₂粒径为10 nm、具有良好磁性分离特性的TiO₂/MCNOs复合光催化剂。通过SEM、XRD、BET、XPS、FT-IR等表征手段对样品的形貌结构及物相组成进行了表征，并在可见光下对罗丹明B（RhB）的光降解效果进行分析。结果表明，4% MCNOs/TiO₂（S）的光催化性能最好，质量浓度为0.55 g/L时，10 mg/L的RhB溶液降解率可达到98%。

Taking SBA-15 as template,butyl titanate (TBT) as Ti source,and magnetic nano-onion carbon (MCNOs) as carbon source,TiO₂/MCNOs composite photocatalyst with good magnetic separation characteristics and 10 nm of TiO₂ are prepared by means of sol-gel method.SEM,XRD,BET,XPS,FT-IR and other methods are employed to characterize the sample's morphology structure and phase composition.Analysis on the photodegradation effect of rhodamine B (RhB) over the catalyst under visible light shows that 4%MCNOs/TiO₂(S) shows the best photocatalytic performance.As its dosage is 0.55 g·L^-1,the degradation rate of 10 mg·L^-1 RhB solution can reach 98%.

包璐瑀(1994-),男,硕士研究生,研究方向为纳米材料在水处理中的应用,364584983@qq.com