AgNbO₃是一种可见光光催化剂，将其掺杂一定量的Co²⁺，可显著提高其光催化效率。Co²⁺/AgNbO₃与海泡石复合制备新型复合光催化材料，并利用扫描电镜（SEM）和傅里叶红外光谱（IR）对Co²⁺/AgNbO₃/海泡石纤维复合材料的结构及活性进行表征分析，研究其复合机理。通过气相甲苯去除实验，验证其光催化-吸附性能。研究表明：可见光（400~760 nm）照射下，当甲苯初始质量分数为50 μg/g，投加1 g复合材料，Co²⁺/AgNbO₃质量比为30%时，对甲苯的去除效果最佳，2.5 h时反应完成后，去除率高达87.876%。

AgNbO₃ is a kind of visible light photocatalyst.Its photocatalytic efficiency can be significantly improved by doping a certain amount of Co²⁺.A novel photocatalytic composite material is prepared by complexing Co²⁺/AgNbO₃ with sepiolite.The structure and activity of the prepared Co²⁺/AgNbO₃/sepiolite fiber composites are characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (IR),and the complex mechanism is also studied.The photocatalytic-adsorption performance of the composites is verified by toluene removal in gas phase.The results show that the removal efficiency of toluene can achieve the best when the initial concentration of toluene is 50 μg·g^-1,1g of composites is added,and the mass ratio of Co²⁺ to AgNbO₃ is 30% under visible light (400-760 nm) irradiation.The removal rate of toluene is as high as 87.876% when the reaction is completed after 2.5 hours.

马影利(1991-),女,研究生,研究方向为热力系统节能及污染物处理技术,2324313814@qq.com