菲在Fenton体系中的氧化特性研究  

Study on Oxidation Characteristics of Phenanthrene in the Fenton System

作　　者：鲁莽[1] 钟丹[1] 

机构地区：[1]中国石油大学(北京)化学工程学院,北京102249

出　　处：《化学与生物工程》2010年第9期39-41,共3页Chemistry & Bioengineering

摘　　要：为考察Fenton反应氧化菲的影响因素,以三角瓶批处理的方式,研究了土样中的菲在不同浓度的H2O2和铁盐时的氧化反应效率,并用GC/MS对菲的氧化产物进行了检测。结果发现,开始的0.5 h反应速率很快,大部分菲氧化是在这期间完成的,之后氧化速率相对缓慢。高浓度的H2O2可获得更高的氧化效率。相同浓度的H2O2下,铁盐浓度为5 mmol.L-1时的氧化效率要小于铁盐浓度为1 mmol.L-1时的。GC/MS检测出3种氧化产物。菲经Fenton试剂氧化芳环被打开,可产生多种含氧化合物,这些物质可进一步被转化。In order to explore the influential factors for oxidation of phenanthrene by Fenton reaction, the oxidation efficacy at different concentration of H2O2 or Fe^2＋ for phenanthrene in soil samples were studied by batch process in flasks, and the oxidation products were determined by GC/MS. The results showed that, the re- action rate was very fast in the first 0.5 h, during which most of phenanthrene were degraded, and then the reaction rate slowed down. The higher the H2O2 concentration, the higher the oxidation efficacy for phenanthrene was. With the same concentration of H2O2 ,the oxidation efficacy at 5 mmol ·L^-1 Fe^2＋ was lower than that at 1 mmol·L^-1 Fe^2＋. Three oxidation products were verified by GC/MS. Oxidized by Fenton reagent, the aromatic nucleus of phenanthrene was broken to produce kinds of oxo-compounds,which could be furthur transformed.

关 键 词：菲 氧化 土样 

分 类 号：TQ241.57[化学工程—有机化工]