The performance and reaction pathway of δ-MnO2/USY for catalytic oxidation of toluene in the presence of ozone at room temperature.,Chemosphere

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The performance and reaction pathway of δ-MnO2/USY for catalytic oxidation of toluene in the presence of ozone at room temperature.
Chemosphere ( IF 8.1 ) Pub Date : 2020-01-08 , DOI: 10.1016/j.chemosphere.2020.125864
Ruijie Yang ₁ , Pingping Han ₁ , Yingying Fan ₁ , Zhongjie Guo ₁ , Qitong Zhao ₁ , Yang Wang ₁ , Sainan Che ₁ , Songxue Lin ₁ , Rongshu Zhu ₁

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In this work, a series of δ-MnO2/USY with different contents of δ-MnO2 (0.3 wt%, 1.5 wt%, 3.0 wt%, 10.0 wt%, and 15.0 wt%) were prepared. In addition, their performances of the adsorption of toluene, degradation and mineralization of toluene, and removal of ozone (O3) were investigated. The results showed that, among all the samples, 3.0 wt% δ-MnO2/USY displayed the best performance of toluene adsorption, degradation and mineralization. Furthermore, according to the in situ DRIFTS and GC-MS analysis, the intermediate by-products during the toluene degradation progress were ascertained and the possible pathway of catalytic oxidation toluene by δ-MnO2/USY in the presence of O3 was proposed.

中文翻译：

室温下臭氧存在下，δ-MnO2/ USY催化甲苯催化氧化的性能和反应途径。

在该工作中，制备了一系列具有不同含量的δ-MnO2（0.3wt％，1.5wt％，3.0wt％，10.0wt％和15.0wt％）的δ-MnO2 / USY。此外，还研究了它们的吸附甲苯，降解和矿化甲苯以及去除臭氧（O3）的性能。结果表明，在所有样品中，3.0 wt％的δ-MnO2/ USY表现出最佳的甲苯吸附，降解和矿化性能。此外，根据原位DRIFTS和GC-MS分析，确定了甲苯降解过程中的中间副产物，并提出了在存在O3的条件下用δ-MnO2/ USY催化氧化甲苯的可能途径。

更新日期：2020-01-09

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