用阴离子交换膜（EBTAC）从水溶液中去除刚果红：吸附动力学和热力学
Removal of Congo Red from Aqueous Solution by Anion Exchange Membrane (EBTAC): Adsorption Kinetics and Themodynamics.
作者信息
Khan Muhammad Imran, Akhtar Shahbaz, Zafar Shagufta, Shaheen Aqeela, Khan Muhammad Ali, Luque Rafael, Rehman Aziz Ur
机构信息
Department of Chemistry, the Islamia University of Bahawalpur, Bahawalpur 63000, Pakistan.
School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, Anhui, China.
出版信息
Materials (Basel). 2015 Jul 8;8(7):4147-4161. doi: 10.3390/ma8074147.
The adsorption behavior of anionic dye congo red (CR) from aqueous solutions using an anion exchange membrane (EBTAC) has been investigated at room temperature. The effect of several factors including contact time, membrane dosage, ionic strength and temperature were studied. Kinetic models, namely pseudo-first-order and pseudo-second-order, liquid film diffusion and Elovich models as well as Bangham and modified freundlich Equations, were employed to evaluate the experimental results. Parameters such as adsorption capacities, rate constant and related correlation coefficients for every model were calculated and discussed. The adsorption of CR on anion exchange membranes followed pseudo-second-order Kinetics. Thermodynamic parameters, namely changes in Gibbs free energy (), enthalpy () and entropy () were calculated for the adsorption of congo red, indicating an exothermic process.
在室温下研究了使用阴离子交换膜（EBTAC）从水溶液中吸附阴离子染料刚果红（CR）的行为。研究了包括接触时间、膜用量、离子强度和温度在内的几个因素的影响。采用动力学模型，即拟一级和拟二级、液膜扩散和埃洛维奇模型以及班汉姆和修正弗伦德里希方程来评估实验结果。计算并讨论了每个模型的吸附容量、速率常数和相关相关系数等参数。CR在阴离子交换膜上的吸附遵循拟二级动力学。计算了刚果红吸附的热力学参数，即吉布斯自由能变化（）、焓（）和熵（），表明这是一个放热过程。
Zotero 插件