Reaction mechanism of 3-chlorophenol with OH,H in aqueous solution  

作　　者：ZHU Jie, CHEN Ye fei, DONG Wen bo, PAN Xun xi, HOU Hui qi (Institute of Environmental Science, Fudan University, Shanghai 200433, China. 

出　　处：《Journal of Environmental Sciences》2003年第1期55-59,共5页环境科学学报（英文版）

基　　金：TheNationalNaturalScienceFoundationofChina(No.2 97770 0 3)

摘　　要：The reaction mechanism of 3 chlorophenol with OH, H in aqueous solution was studied by transient technology. The 3 chlorophenol aqueous solutions have been saturated with air or N 2 previously. Under alkaline condition, the reaction of OH radical with 3 chlorophenol produces 3 chlorinated phenoxyl radical, with the absorption peaks at 400 nm and 417 nm. Under neutral condition, the reaction of OH radical with 3 chlorophenol produces OH adduct with the maximal absorption at about 340 nm. And in acid solution, the reaction of H with 3 chlorophenol produces H adduct with the maximal absorption at about 320 nm. 3 chlorophenol is compared with 4 and 2 chlorophenols from the free radical pathways. The results show that the positions of chlorine on the aromatic ring strongly influence the dehalogenation and degradation process.The reaction mechanism of 3 chlorophenol with OH, H in aqueous solution was studied by transient technology. The 3 chlorophenol aqueous solutions have been saturated with air or N 2 previously. Under alkaline condition, the reaction of OH radical with 3 chlorophenol produces 3 chlorinated phenoxyl radical, with the absorption peaks at 400 nm and 417 nm. Under neutral condition, the reaction of OH radical with 3 chlorophenol produces OH adduct with the maximal absorption at about 340 nm. And in acid solution, the reaction of H with 3 chlorophenol produces H adduct with the maximal absorption at about 320 nm. 3 chlorophenol is compared with 4 and 2 chlorophenols from the free radical pathways. The results show that the positions of chlorine on the aromatic ring strongly influence the dehalogenation and degradation process.

关 键 词：3-chlorophenol OH radical atomic H microscopic reactions transient absorption spectra 

分 类 号：X131.2[环境科学与工程—环境科学]