模拟太阳光-过氧化氢作用下冰相中苯酚的光转化  

Photoconversion of Phenol in Ice with the Presence of H_2O_2 Under Simulated Solar Light

作　　者：唐晓剑[1,2,3] 王依雪 康春莉[2] 刘汉飞[2] 陈柏言[2] 裘式纶[1] 

机构地区：[1]吉林大学化学学院,长春130012 [2]吉林大学地下水资源与环境教育部重点实验室,长春130021 [3]吉林建筑大学松辽流域水环境教育部重点实验室,长春130118

出　　处：《高等学校化学学报》2015年第9期1719-1723,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:41073063)资助~~

摘　　要：以模拟太阳光为照射光源,对冰相中苯酚在过氧化氢(H2O2)存在条件下的光转化反应进行了研究,考察了影响苯酚光转化反应的主要因素并探讨了光转化动力学过程.研究结果表明,光强度越高或H2O2初始浓度越大,苯酚在冰相介质中的光转化率越快,而苯酚初始浓度越高则会导致苯酚的光转化率减慢.p H值对苯酚的光转化率的影响则表现为酸性导致减小,碱性导致加快.应用气相色谱-质谱联用仪(GC-MS)分析了苯酚的光解产物,推断苯酚在冰相中的光解过程中主要发生了羟基化反应.Using simulated solar light,under the condition of low temperature（- 14—- 12 ℃）,the photoconversion reaction of phenol was studied when H2O2 existed in the water ice. The influence factors and the dynamics of the photoconversion of phenol in the water ice were investigated. With the increasing of the H2O2 initial concentration and light intensity,the photoconversion rate of phenol was increased rapidly. While the photoconversion rate decreased with the increasing of the phenol initial concentration. The photoconversion of phenol was decreased from acid conditions to alkali conditions. The photoconversion course follows the firstorder kinetics equation. The photoproducts detected by GC-MS（ gas chromatography-mass spectrometer） indicate that the hydroxylation reactions occurred in the photoconversion course.

关 键 词：苯酚 模拟太阳光 过氧化氢 冰相 

分 类 号：O644.1[理学—物理化学] X131[理学—化学]