To improve the limitation of non-thermal plasma(NTP)technology and broaden its application in the treatment of odorous gas,Cu doped catalyst was combined with NTP technology.The H2S degradation efficiency,influence of coupling methods,internal structure and external structure were researched comprehensively.In addition,the role of catalyst and synergetic mechanism were approached.The results showed that the contact points between the catalyst particles and the reactor wall enhanced the discharge process,while the output of high-energy electrons was lower in external structure system.Compared with the single NTP system,the built-in coupling system could cut off the H2S and make it contact with the active substance sufficiently,which improved the discharge efficiency,and the output efficiency could reach 64.79％at 35 V.
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