Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
Adv Colloid Interface Sci. 2009 Nov 30;152(1-2):2-13. doi: 10.1016/j.cis.2009.07.009. Epub 2009 Aug 5.
A review of a certain class of theoretical models describing the kinetics of pollutants sorption onto various sorbents is presented. These assuming the rate of surface reaction as the rate-limiting step are considered. A special attention is paid to possible theoretical grounds of the most commonly applied mathematical expressions, such as the pseudo-second and the pseudo-first order equations. Simple theoretical considerations based on some fundamental theories suggest that these two formulae do not correspond to any specific physical model. They simply approximate well the behaviours predicted by many different theoretical approaches.
本文回顾了某些理论模型，这些模型描述了污染物在各种吸附剂上的吸附动力学。这些模型假设表面反应速率是限速步骤。特别关注了最常用的数学表达式（如伪二级和伪一级方程）的可能理论基础。基于一些基本理论的简单理论考虑表明，这两个公式并不对应于任何特定的物理模型。它们只是很好地近似了许多不同理论方法所预测的行为。
