含Mn、Ag催化剂分解高湿度臭氧尾气的研究

Decomposition of ozone on MnO_x-AgO_x/cordierite catalysts

用分步浸渍法制备出能在高湿度条件下催化分解较高浓度 O3 的 MnOx AgOx/堇青石催化剂。XRD和 XPS 分析表明,反应前后催化剂的活性中心发生了变化,产生了新物种。根据实验初步讨论了高湿度下MnOx 和 AgOx 分解 O3 的协同效应以及 O3在催化剂表面发生的局部多相催化分解的反应过程。

The catalysts MnOx-AgOx/cordierite prepared by dipping method has shown high activity in decomposing ozone under high humidity. The catalysts were characterized by XPS and XRD. The results show the appearance of the new active materials during the process of the action. We suggested the synergetic effect of MnOx and AgOx for decomposing ozone. We also discussed the multi-phases catalytic procedure of ozone decomposition on the MnOx-AgOx/cordierite Catalysts under high humidity condition.