Models for Type VI Adsorption Isotherms from a Statistical Mechanical Formulation

Adsorption Science and Technology - Tập 31 Số 4 - Trang 341-357 - 2013
Manel Ben Yahia1, Yosra Ben Torkia1, Salah Knani1, M.A. Hachicha1, Mohamed Khalfaoui1, Abdelmottaleb Ben Lamine1
1Laboratory of Quantum Physics, Department of Physics, Faculty of Sciences, Monastir, Tunisia

Tóm tắt

In this study, two theoretical expressions for the Type VI isotherm in the IUPAC classification are presented. The formulation of these new expressions is based on a rigorous statistical mechanical description. The expressions allow for the estimation of physicochemical parameters within the theoretical model. The proposed models allow a good correlation to Type VI experimental isotherms taken from the literature such as adsorption isotherms for adsorption of methane onto MgO (100) and onto an exfoliated graphite surface. The parameters intervening in the adsorption process have been deduced directly from experimental adsorption isotherms by numerical simulation. The theoretical expressions provide an understanding and interpretation of the adsorption isotherms at the microscopic level.

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Adsorption Science and Technology

Tập 31 Số 4

341-357

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