化工学报Issue(1):449-454,6.DOI:10.11949/j.issn.0438-1157.20140976
Fe2+/H2O2体系内各种自由基在氧化NO中的作用
Roles of varied radicals in NO oxidation by Fe2+/H2O2 system
摘要
Abstract
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).关键词
Fe2+/H2O2体系/自由基/无效分解/NOKey words
Fe2+/H2O2 system/radical/invalid decomposition/NO分类
资源环境引用本文复制引用
赵海谦,高继慧,周伟,王忠华,吴少华..Fe2+/H2O2体系内各种自由基在氧化NO中的作用[J].化工学报,2015,(1):449-454,6.基金项目
国家自然科学基金项目(51176043,91434134,51134015);黑龙江省青年科学基金项目( QC2014C047);黑龙江省教育厅项目(12541093)。@@@@supported by the National Natural Science Foundation of China(51176043,91434134,51134015), Heilongjiang Science Funds for Youths (QC2014C047), Heilongjiang Province Department of Education Funds (12541093) (51176043,91434134,51134015)