臭氧（O3）催化氧化是一项极具发展潜力的治理低浓度VOCs的技术之一。然而在臭氧催化过程中，臭氧催化剂表面活性位点的下降和失活、催化剂易团聚、以及空间位阻大不利于氧化过程中的电子迁移等缺点，制约了其在VOCs治理中的广泛应用。基于层状MnO2和层状石墨烯复合的二维间层结构有利于臭氧和VOCs在MnO2和石墨烯中的有效分配、以及减小空间位阻有助于电子迁移和产物的快速扩散，因此本项目主要研究以MnO2-石墨烯间层结构的构筑及其作为催化臭氧氧化纳微反应器为主要特征的催化臭氧氧化VOCs新方法以及以这一新方法为背景的基础理论和应用问题。通过在分子水平上构筑和调控间层结构和层间距离，研究纳微反应器的间层结构与催化VOCs特性之间的构效关系和协同效应；采用石英晶体微天平(QCM)等技术研究臭氧和VOCs在纳微反应器界面的分配行为；研究纳微反应器催化氧化VOCs的降解产物、降解机制以及环境风险。

The volatile organic compounds (VOCs) are one of major environmental pollutants, which are hazardous to the environment and human health. The development of catalyst with high-catalytic activity for catalytic oxidation of VOCs with ozone is an important research area. However, the catalytic oxidation with ozone was limited in VOCs treatment application due to the decrease and inactivation of active sites on the surface of ozone catalyst, easy aggregation properties of catalysts, large steric hindrance, and the slow electron transfer in the oxidation process. The structure of layered MnO2/layered graphene can provide the higher space and BET area, which is beneficial to the synergistic effect on the catalytic oxidation of VOCs with ozone between MnO2 and graphene. Therefore, this project aims at fabrication of layered MnO2 and layered graphene composite (i.e. layer-structured MnO2/graphene hybrid composites) as nano/micro-reactor for catalytic oxidation with ozone, and investigating the feasibility and the optimal experimental conditions of layer-structured MnO2/graphene nano/micro-reactor with highly efficient performance for the catalytic oxidation of VOCs with ozone. In addition, we will study the relationship between the structure of nano/micro- reactor and catalytic activity, and the synergistic effect between MnO2 and graphene for the oxidation of VOCs with ozone. It is expected that these investigations will develop a high effective MnO2-graphene composites as a nano/micro-reactor for oxidation of VOCs with ozone, and enrich the fundamental theory not only for the efficient oxidation of VOCs with ozone but also for the environmental pollutant problems.