Fe(phen)_3^(2+)光度法测定辉光放电等离子体中产生的羟基自由基  

Determination of hydroxyl radical in glow discharge plasma by Fe(phen)_3^(2+) spectrophotometry

作　　者：付燕[1] 王爱香[1] 马东平[1] 李岩[1] 吴建林[1] 郭晓[1] 高锦章[1] 

机构地区：[1]西北师范大学化学化工学院,甘肃兰州730070

出　　处：《西北师范大学学报（自然科学版）》2007年第3期49-52,共4页Journal of Northwest Normal University(Natural Science)

基　　金：教育部重点科技资金资助项目(00250);甘肃省自然科学基金资助项目(3ZS041-A25-028);西北师范大学科技创新工程资助项目(NWNU-KJCXGC-01)

摘　　要：采用Fe(phen)32+光度法测定了辉光放电电解过程中产生的羟基自由基(.OH),考察了本方法的可行性及工作电压、溶液电导率和初始pH对.OH生成浓度的影响.结果表明,在电压为560 V,溶液电导率为4.500 mS/cm,初始pH=3.20的情况下,在盐桥装置中60 min内捕获到.OH的浓度约为1.01×10-4mol/L.The hydroxyl radical produced in glow discharge electrolysis process is determined by Fe（phen）3^2＋ spectrophotometry. It is examined that the feasibility of this method and the influencing factors, such as applied voltage, electrical conductivity and initial pH. The results show that the optimal conditions in the voltage of 560V, the electrical conductivity of solution of 4. 500 mS/cm, the pH of 3.20, the concentration of ·OH at 60 min can reach 1.01×10^-4 mol/L in salt bridge setup.

关 键 词：Fe(phen)3^2+光度法 辉光放电电解 羟基自由基(·OH) 测定 

分 类 号：O646.9[理学—物理化学] O657.3[理学—化学]