Electron Spin Resonance Analyse on the Production of Hydroxyl Radicals by Ozone Photolysis

作     者：高利利 程金平 刘元嫄 殷永文 OKETA Takemi HORIBATA Fumie GAO Li-li1,CHENG Jin-ping1*,LIU Yuan-yuan1 YIN Yong-wen1,OKETA Takemi2,HORIBATA Fumie2 (1.School of Environmental Science and Engineering,Shanghai Jiaotong University,Shanghai 200240,China;2.Corporate Engineering Division,Home Appliances Company,Panasonic Corporation,Shiga 525-8555,Japan)

作者机构：School of Environmental Science and EngineeringShanghai Jiaotong University Corporate Engineering DivisionHome Appliances CompanyPanasonic Corporation 

出 版 物：《Journal of Shanghai Jiaotong university(Science)》 (上海交通大学学报（英文版）)

年 卷 期：2010年第15卷第4期

页      面：458-462页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学] 

基　　金：Home Appliances Company 

主　　题：electron spin resonance(ESR) hydroxyl radicals ozone photolysis 

摘      要：In order to explore the production of hydroxyl radical(·OH)in a confined space,a novel ozone-light irradiation system is constructed in this study,and the·OH radical is measured by spin-trapping electron spin resonance(ESR)method in which 5,5-dimethyl-1-pyrroline-N-oxide(DMPO)is selected as the spin-trap.Several influence factors including the light intensity,the irradiation time and DMPO mass concentration are discussed. The results show that in this experimental system,with DMPO mass concentration of 1g/L and the irradiation time of 30 min,the·OH radical can be best captured.Besides,both wavelength and intensity of the irradiation light could effect the generation of·OH radical.These results are of great importance to further study the sterilization effect of·OH radical in confined space.