瞬态吸收光谱技术研究水体中亚硝酸-萘体系的微观反应机理  

REACTION MECHANISM OF MIXED AQUEOUS SOLUTION OF NITROUS ACID AND NAPHTHALENE BY 355NM UV LIGHT IRRADIATION

作　　者：欧阳彬[1] 张仁熙[1] 朱承驻[1] 吴玉萍[1] 侯惠奇[1] 

机构地区：[1]复旦大学环境科学研究所,上海200433

出　　处：《环境化学》2004年第4期393-398,共6页Environmental Chemistry

基　　金：上海市科技发展基金资助 :0 2 2 3 1 2 1 1 6.

摘　　要：采用 35 5nm紫外光照射HNO2 萘 H2 O体系 .研究表明 ,光照后体系中间产物和最终产物的光反应过程是通过HNO2 激光光解产生OH自由基 ,OH自由基再与萘反应生成　 OH ,反应速率常数为 ( 1 1± 0 1 )× 1 0 1 0 M- 1 ·s- 1 .We studied the microscopic reactions taking place in the mixed solution of nitrous acid and naphthalene after its exposure to the 355nm UV light irradiation.Experiment results suggested the main final products of this system to be naphthoquinone,naphthol and nitronaphthol.The OH radical generated through the photolysis of nitrous acid would from adduct with naphthalene quickly,while this adduct has been found to be the precursor of all of the final products identified.The rate constants of reaction OH+naphthalene was determined to be (1 1±0 1)×10 10 M -1 ·s -1 .

关 键 词：瞬态吸收光谱 亚硝酸 萘 OH自由基 污染物 废水处理工业 波长 

分 类 号：X131[环境科学与工程—环境科学]