For decades, adsorption has attracted the attention of many researchers worldwide, resulting in the publication of a considerable number of adsorption studies, especially recently focused on the application of adsorptive removal of pollutants from aqueous solution. Here we discuss some incorrect results and statements frequently found in the scientific environmental adsorption literature. In particular, we focus on the thermodynamic and kinetic aspects of the adsorption process, including erroneous calculation of the equilibrium constant, inaccurate calculation of ΔH° and ΔS°, mismatch between selected isotherm models and isosteric heat of adsorption, misleading interpretation of the spontaneity of a process, erroneous identification of the best-fitting kinetic model [1-3].
Common mistakes in the analysis of thermodynamic and kinetic data appearing in the environmental adsorption literature
Stefano Salvestrini
2022
Abstract
For decades, adsorption has attracted the attention of many researchers worldwide, resulting in the publication of a considerable number of adsorption studies, especially recently focused on the application of adsorptive removal of pollutants from aqueous solution. Here we discuss some incorrect results and statements frequently found in the scientific environmental adsorption literature. In particular, we focus on the thermodynamic and kinetic aspects of the adsorption process, including erroneous calculation of the equilibrium constant, inaccurate calculation of ΔH° and ΔS°, mismatch between selected isotherm models and isosteric heat of adsorption, misleading interpretation of the spontaneity of a process, erroneous identification of the best-fitting kinetic model [1-3].I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
