γ辐照降解六氯苯(HCB)的研究  

Radiolysis of hexachlorobenzene(HCB)by γ irradiation

作　　者：杨光俊[1] 郑正[1] 赵永富[2] 胡文勇[1] 顾春晖[1] 冯建昉[1] 

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,南京210093 [2]江苏省农业科学院原子能所,南京210014

出　　处：《环境科学学报》2004年第4期750-752,共3页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金(10275034);高等学校博士学科点专项科研基金(20020284039)

摘　　要：研究了在不同溶剂体系及不同浓度添加物的联合作用下,六氯苯经γ射线辐照的降解.结果表明,六氯苯在丙酮和水混合溶剂中能得到有效降解,最大降解率达93%,在正己烷溶剂中也有部分降解,多数生成五氯苯.CO2-3与H2O2提高六氯苯的降解效率,TritonX 100、NO-2降低六氯苯的降解效率,且浓度越大作用越明显.3与NO-In this study,the degradation efficiencies of hexachlorobenzene (HCB) in different solvents by γ irradiation had been investigated. The results showed that HCB degradation rate could reach 93% in acetone and water, but it was less in hexane and most degradation products were pentachlorobenzene. The addition of CO2-3 and H2O2 could increase the degradation efficiency of HCB. However, Triton X100, NO-3 and NO-2 inhibited the degradation. Furthermore, the increasing of these additives will result in the decrease of the degradation efficiencies.

关 键 词：六氯苯 HCB 有机污染物 正己烷 丙酮 

分 类 号：X131[环境科学与工程—环境科学] X132