The octahedral molecular sieve (OMS-2)-supported Ag samples were prepared by the pre-incorporation, ion exchange, and polyvinyl alcohol (PVA)-protecting methods, respectively. The XRD, TEM, BET, H₂-TPR, O₂-TPD, and FT-IR techniques were used to investigate effects of the preparation method on physicochemical property of the samples, over which oxidation of ethyl acetate and formaldehyde was used as probe reactions. It is found that catalytic activity was dependent on physicochemical property of the sample, and decreased in the order of Ag/OMS-2-PI > Ag/OMS-2-IE > Ag/OMS-2-PVA > OMS-2. The Ag/OMS-2-PI sample performed the best: the T₉₀ for ethyl acetate and formaldehyde oxidation was 200 and 170 °C, respectively. The Ag species in Ag/OMS-2-PI were uniformly distributed in the pores and channels of the OMS-2 support. The characterization results indicate that the outstanding catalytic activity of Ag/OMS-2-PI was due to its high surface Mn³⁺ and adsorbed oxygen species concentrations, good low-temperature reducibility, and the largest surface area.

八面体分子筛（OMS-2）负载的Ag样品分别通过预掺入，离子交换和聚乙烯醇（PVA）保护方法制备。利用XRD，TEM，BET，H ₂ -TPR，O ₂ -TPD和FT-IR技术研究了制备方法对样品理化性质的影响，以乙酸乙酯和甲醛的氧化为探针反应。发现催化活性取决于样品的理化性质，并且以Ag / OMS-2-PI> Ag / OMS-2-IE> Ag / OMS-2-PVA> OMS-2的顺序降低。Ag / OMS-2-PI样品表现最好：T ₉₀乙酸乙酯和甲醛的氧化温度分别为200和170°C。Ag / OMS-2-PI中的Ag物种均匀分布在OMS-2载体的孔和通道中。表征结果表明，Ag / OMS-2-PI的杰出催化活性归因于其高的表面Mn ³⁺和吸附的氧种类浓度，良好的低温还原性以及最大的表面积。