The problem of deep oxidation of low concentrations of VOCs in industrial tail gas is exceptionally urgent. The preparation of VOCs ozonation catalyst with a high mineralization rate is still a challenge. In this paper, manganese oxide carriers with different morphologies were synthesized by simple methods and used to catalyze ozone mineralization of toluene after loading Pt nanoparticles efficiently. The conversion of toluene over Pt/MnO_x-T catalyst was more than 98 % at ambient temperature, and the mineralization rate of toluene was close to 100 % at 70 °C. Through a variety of characterization methods, the strong metal-support interaction (SMSI) between Pt nanoparticles and carriers was successfully constructed. It was found that SMSI successfully optimized the surface oxygen species and oxygen migration ability of the catalyst, and then realized the high degree of mineralization of toluene at low temperature. This paper guides the subsequent development of Pt–Mn catalysts for catalytic organic pollutants ozonation with high activity.

工业尾气中低浓度VOCs的深度氧化问题显得格外紧迫。制备具有高矿化率的VOCs臭氧化催化剂仍然是一个挑战。本文通过简单的方法合成了不同形貌的氧化锰载体，并在有效负载铂纳米粒子后用于催化甲苯的臭氧矿化。甲苯在 Pt/MnO _{x 上}的转化-T催化剂在常温下可达98%以上，甲苯矿化率在70℃下接近100%。通过多种表征方法，成功构建了铂纳米粒子与载体之间的强金属-载体相互作用（SMSI）。发现SMSI成功优化了催化剂的表面氧物种和氧迁移能力，进而实现了甲苯在低温下的高度矿化。本文指导了后续开发用于催化有机污染物臭氧化的高活性 Pt-Mn 催化剂。