作者:Jose Ángel Pino-Chamorro、Tamás Ditrói、Gábor Lente、István Fábián
DOI:10.1016/j.jphotochem.2016.07.025
日期:2016.11
UV–vis light was studied in aqueous solution in order to analyze the mechanism of the photochemical process and to determine the kinetic parameters including the quantum yield. Based on initial rate studies at different overall volumes and illumination patterns, it was proved that the rate of the process is directly proportional to the intensity of irradiating light. A significant, but moderate acceleration
为了分析光化学过程的机理并确定动力学参数,包括量子产率,研究了水溶液中紫外可见光对2,4,6-三氯苯酚(TCP)的直接光降解。基于在不同总体积和照明模式下的初始速率研究,证明了该过程的速率与照射光的强度成正比。在5.0和35.0°C之间发现了反应速率随温度升高而显着但适度的加速,这可以通过假设TCP的激发态参与两个竞争过程来轻松解释。高压液相色谱和质谱为我们提供了有关中间体和形成的产物的性质的信息。2,6-二氯-1,4-苯醌,3,检测到5-二氯-2-羟基-1,4-苯醌和2,6-二氯羟基醌为产物和/或中间体,并且还暗示有3,5-二氯苯-1,2-二醇和3的形成。 ,5-二氯-1,2-苯醌。提出了一种可能的降解机理来解释动力学发现。