As a typical volatile organic compound, toluene is a hazardous material for human health and the environment, and currently, the development of catalysts for its oxidation into CO₂ and water is crucial. The series of Ag-CeO₂/SBA-15 catalysts is synthesized by wetness impregnation techniques and characterized by a number of physical-chemical methods (nitrogen [N₂] physisorption, small angle X-ray scattering [SAXS], transmission electron microscopy [TEM], and temperature-programmed reduction [TPR]). The toluene sorption and catalytic properties in toluene oxidation are studied. Small silver [Ag] and cerium oxide [ceria, CeO_2] particles with sizes below 3 nm are predominantly formed in the ordered structure of Santa Barbara Amorphous-15 [SBA-15]. The interactions between the Ag and CeO₂ nanoparticles are established. Temperature-programmed desorption of toluene [TPD-C₇H₈] analysis shows that physical adsorption of toluene occurs on pristine SBA-15 material, while the introduction of either silver or ceria to SBA-15 leads to the appearance of additional strongly bound chemisorbed toluene on such sites. When both Ag and CeO₂ are introduced, only chemisorbed toluene is formed over the Ag-CeO₂/SBA-15 catalyst, and the highest catalytic activity in toluene oxidation is observed over this catalyst (T_98% = 233 °C, 0.2% C₆H₅CH₃) that is attributed to the synergistic effect of ceria [CeO_2] and silver [Ag].

作为一种典型的挥发性有机化合物，甲苯是一种对人类健康和环境有害的物质，目前，开发将其氧化成 CO ₂和水的催化剂至关重要。该系列Ag-CeO ₂ /SBA-15催化剂采用湿浸渍技术合成，并通过多种物理化学方法（氮[N ₂ ]物理吸附、小角X射线散射[SAXS]、透射电子显微镜[ TEM] 和程序升温还原 [TPR]）。研究了甲苯氧化中甲苯的吸附和催化性能。小银 [Ag] 和氧化铈 [ceria, CeO _2]尺寸低于 3 nm 的颗粒主要在 Santa Barbara Amorphous-15 [SBA-15] 的有序结构中形成。建立了Ag和CeO ₂纳米颗粒之间的相互作用。甲苯的程序升温解吸 [TPD-C ₇ H ₈ ] 分析表明甲苯的物理吸附发生在原始 SBA-15 材料上，而将银或二氧化铈引入 SBA-15 导致出现额外的强结合化学吸附甲苯在这些位置。当同时引入Ag 和 CeO _{2 时}，仅在 Ag-CeO ₂ /SBA-15 催化剂上形成化学吸附甲苯，并且在该催化剂上观察到最高的甲苯氧化催化活性（T _98% = 233 °C, 0.2% C ₆ H ₅ CH ₃ )，这归因于氧化铈 [CeO _2]和银 [Ag]的协同作用。