Instituto de Desarrollo Tecnológico para la Industria Química, Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas, Güemes 3450, Santa Fe, 3000, Argentina.
Environ Sci Pollut Res Int. 2015 Jan;22(2):926-37. doi: 10.1007/s11356-014-2682-5. Epub 2014 Mar 14.
A kinetic study of the photocatalytic degradation of the pharmaceutical clofibric acid is presented. Experiments were carried out under UV radiation employing titanium dioxide in water suspension. The main reaction intermediates were identified and quantified. Intrinsic expressions to represent the kinetics of clofibric acid and the main intermediates were derived. The modeling of the radiation field in the reactor was carried out by Monte Carlo simulation. Experimental runs were performed by varying the catalyst concentration and the incident radiation. Kinetic parameters were estimated from the experiments by applying a non-linear regression procedure. Good agreement was obtained between model predictions and experimental data, with an error of 5.9 % in the estimations of the primary pollutant concentration.
本文对光催化降解药物氯贝酸的动力学进行了研究。实验在紫外线辐射下，采用水悬浮态的二氧化钛进行。鉴定并量化了主要的反应中间产物。推导了表示氯贝酸和主要中间产物动力学的内在表达式。通过蒙特卡罗模拟对反应器中的辐射场进行建模。通过改变催化剂浓度和入射辐射来进行实验运行。通过应用非线性回归程序，从实验中估算了动力学参数。模型预测与实验数据吻合良好，对初始污染物浓度的估计误差为 5.9%。
