以葡萄糖为模板和碳源，经水热反应和高温煅烧得到碳掺杂介孔TiO₂中空微球（C-TiO₂），并以C-TiO₂为载体，将AgNO₃和NaH₂PO₄负载到TiO₂介孔孔道中，在光催化过程中原位生成Ag₃PO₄提高TiO₂的光催化活性。利用XRD、SEM、TEM以及UV-Vis DRS对样品进行表征。以罗丹明B为模拟污染物，对样品在紫外光和可见光下的催化性能进行表征。结果表明，Ag （I）敏化后TiO₂的载银量为5.6%时光催化活性最佳，在紫外光下20 min时降解率为98.6%，可见光下40 min降解率为99.3%。

Carbon-doped mesoporous TiO₂ hollow microspheres (C-TiO₂) are prepared by hydrothermal reaction method and calcination method using glucose as template and carbon source.Using the prepared C-TiO₂ as supporter,AgNO₃ and NaH₂PO₄ are supported into the mesoporous channels of TiO₂ and form Ag₃PO₄ in-situ during the photocatalytic process,which can improve the photocatalytic activity of TiO₂.The Ag(I) sensitized C-TiO₂ samples are characterized by XRD,SEM,TEM,and UV-Vis DRS.The photocatalytic activity of the sensitized samples are evaluated through photocatalytic degradation of simulated contaminant Rhodamine B under ultraviolet light and visible light,respectively.The photocatalytic activity is the best when the content of Ag in Ag(I) sensitized C-TiO₂ is 5.6%,over which the degradation rate is 98.6% under the irradiation of ultraviolet light for 20 min and is 99.3% under the irradiation of visible light for 40 min.

陈贝(1992-),女,硕士,研究方向为光催化纳米材料的制备与应用,cb1297196587@163.com。