4-氯苯酚在水溶液中的光化学反应(Ⅱ)反应的动力学研究

PHOTOREACTION OF 4 CHLOROPHENOL IN AQUATIC SOLUTIONS Ⅱ REACTION KINETICS

研究了在模拟太阳光和紫外光作用下，４氯苯酚（４ＣＰ）的光反应动力学．研究表明，紫外光的作用更为显著．４ＣＰ的反应速率与４ＣＰ起始浓度、ｐＨ值，金属离子浓度、富里酸浓度等因素有关．通入空气，能够加速４ＣＰ降解．

The photoreaction kinetics of 4 CP was studied under simulated sunlight and UV. The results indicated that the effect of UV was more striking. Reaction rate of 4 CP was influenced by following factors:1.Under the simulated sunlight,with an increase in the initial 4 CP concentration,the reduction rate of 4 CP increased;but exposed to UV,with an increase in the initial 4 CP concentration,the reduction rate of 4 CP reduced;2.With an increase in pH value,the reduction rate of 4 CP increased;3.Metal ions(Al 3+ ,Fe 2+ ,Fe 3+ )could accelerate the reduction rate of 4 CP;4.Under the simulated sunlight,with an increase in FA concentration,the reduction rate of 4 CP reduced;but under UV,with an increase in the concentration of FA,the reduction rate of 4 CP increased;5.When air was ventilated,it could accelerate the reduction rate of 4 CP.