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Photoconversion of p-Chlorophenol in Ice and the Presence of Nitrite
Author(s): KANG Chun-Li, GAO Hong-Jie, GUO Ping, TANG Xiao-Jian, ZHANG Ge-Shan, LIU Xing-Juan, DONG De-Ming
Pages: 705-
709
Year: 2008
Issue:
4
Journal: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES
Keyword: 对氯苯酚; 亚硝酸盐; 冰; 光转化; 机理;
Abstract: 以125 W高压汞灯为光源,在低温(-12~-14 ℃)条件下研究了冰相中有亚硝酸盐存在时对氯苯酚(4-CP)的光转化反应.考察了各种因素对冰相中4-CP光转化的影响以及冰相中4-CP光转化的动力学和机理.实验结果表明,4-CP初始浓度、亚硝酸盐初始浓度、pH值和光强对冰相中4-CP光转化均有较大影响.在180 min内,4-CP和总有机碳(TOC)的转化率分别达到80%和32%,在实验条件下,NO-2的存在能够改变4-CP在冰相中光转化的产物和机理.
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