化学工程2024，Vol.52Issue(6)：29-32,4.DOI:10.3969/j.issn.1005-9954.2024.06.006
基于Langmuir等温吸附的吸附动力学方程
Adsorption kinetics equation based on Langmuir isotherm
摘要
Abstract
The adsorption is regarded as a chemical reaction between solute and solid adsorbent,and the corresponding kinetic model was developed referring to the reaction kinetics.Based on Langmuir isothermal adsorption,the kinetic concentration of adsorbent was defined,and its relationship with solid-liquid ratio and Langmuir constant was determined.The model consists of a(1+a)order differential equation,corresponding to the adsorbent kinetic mass concentration of 1 and the solute mass concentration of a.The analytical expression of the model is obtained by solving kinetics differential equation at a=1 and a=2.The regression calculations of the adsorption data in literatures were carried out at a=2.The model prediction and the experimental data are in good agreement.The correlation coefficient R2 is over 0.97.关键词
吸附/等温吸附/Langmuir等温吸附/吸附动力学Key words
adsorption/isothermal adsorption/Langmuir isotherm/adsorption kinetics分类
化学化工引用本文复制引用
程惠亭,刘恩周,郝文斌..基于Langmuir等温吸附的吸附动力学方程[J].化学工程,2024,52(6):29-32,4.基金项目
西北大学2023年研究生校企联合课程建设项目(XQ2023008) （XQ2023008）
