科研之友
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摘要
This work focuses on the synergistic effect of catalysis with plasma and the dominant role of reactive species for adsorbed toluene decomposition. This study indicated that approximate to 100% CO2 selectivity could be obtained by plasma-catalysis with gas circulation. In addition, ozone behavior and its contribution during adsorbed toluene decomposition were investigated. The results indicated that linear positive correlation existed between COx yield increment by plasma-catalysis and ozone consumed amount. However, catalytic decomposition ability of adsorbed toluene by ozone alone was limited. When ozone concentration was as high as 125 mol/L, COx yield with ozone-catalysis was only 11% in 60 min, which was approximate to 75% lower than that with plasma-catalysis. The results indicated that the plasma-induced catalysis was the preferable option for adsorbed toluene decomposition than the ozone-induced catalysis within the presented gas circulation system. Based on the analytic results of gas chromatograph/mass spectrometry, possible pathways of adsorbed toluene destruction were discussed.
