CAJ | 학술논문

Fe2+/H2O2体系可分解产生多种氧化性自由基，主要包括O?2·、·OH和HO2·。本文实验研究了O?2·、·OH及HO2·在Fe2+/H2O2体系氧化NO气体过程中的作用。结果表明：在本实验条件下，O?2·对NO气体的氧化作用不明显；·OH及HO2·是该体系氧化NO气体的主要活性物质，其中·OH的氧化作用更大。加快自由基的生成速率可以增强Fe2+/H2O2体系对NO气体的氧化能力，但O2的生成速率同时加快。只有少量·OH及HO2·参与NO的氧化，·OH与HO2·之间的快速反应是Fe2+/H2O2体系氧化NO过程中H2O2利用率低的主要原因。
Fe2+/H2O2체계가분해산생다충양화성자유기，주요포괄O?2·、·OH화HO2·。본문실험연구료O?2·、·OH급HO2·재Fe2+/H2O2체계양화NO기체과정중적작용。결과표명：재본실험조건하，O?2·대NO기체적양화작용불명현；·OH급HO2·시해체계양화NO기체적주요활성물질，기중·OH적양화작용경대。가쾌자유기적생성속솔가이증강Fe2+/H2O2체계대NO기체적양화능력，단O2적생성속솔동시가쾌。지유소량·OH급HO2·삼여NO적양화，·OH여HO2·지간적쾌속반응시Fe2+/H2O2체계양화NO과정중H2O2이용솔저적주요원인。
Fe2+/H2O2 system contains a variety of oxidizing free radicals, such as O?2·,·OH and HO2·. In this paper, the behaviors of O?2·, ·OH and HO2· played in NO oxidation by Fe2+/H2O2 system were investigated experimentally. The results demonstrated that the ability oxidizing NO of O?2· was weak at the experimental conditions adopted by this paper, while ·OH and HO2· were the main active species for NO oxidation in Fe2+/H2O2 system, and the role of ·OH was more important. Acceleration of generating radical rate could not only promote the ability oxidizing NO gas of Fe2+/H2O2 system, but also accelerated O2 generation rate. Only a small amount of ·OH and HO2· participate in NO oxidation. In the process of NO oxidation by Fe2+/H2O2 system, the rapid reaction between · OH and HO2 · was the major reason of for low utilization of H2O2 (invalid decomposition).