Elovich 等温方程：回归根源和新发展,Chemical Engineering Science

这项工作旨在揭穿 Elovich 等温线在吸附平衡数据的相关性方面远不如 Langmuir 或 Freundlich 等温线的说法。在许多已发表的文章中报告的这一错误发现是比较三个等温线的线性化版本的结果，这些等温线基于不同的转换数据集。当基于未转换的数据（常规吸附相浓度与溶液相浓度图），Elovich 等温线显示出与 Langmuir 或 Freundlich 等温线具有高度且始终如一的竞争力。通过使用由线性或非线性回归生成的参数估计，可以从三个等温线获得未转换数据的预测。为了促进 Elovich 等温线在吸附研究中的更广泛应用，这项工作展示了如何使用 Elovich 等温线的修改形式来评估异质表面的能量分布。

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This work seeks to debunk the claim that the Elovich isotherm is vastly inferior to the Langmuir or Freundlich isotherm in the correlation of adsorption equilibrium data. This mistaken finding, reported in many published articles, is a result of comparing linearized versions of the three isotherms, which are based on different sets of transformed data. When isotherm discrimination is performed on the basis of untransformed data (the conventional adsorbed phase concentration versus solution phase concentration plot), the Elovich isotherm is shown to be highly and consistently competitive against the Langmuir or Freundlich isotherm. Predictions of untransformed data can be obtained from the three isotherms by using parameter estimates generated by either linear or nonlinear regression. To promote a wider application of the Elovich isotherm in adsorption research, this work shows how a modified form of the Elovich isotherm can be used to evaluate the energy distribution of heterogeneous surfaces.