scholarly journals New insights on microscopic interpretation of adsorption isotherms of ionophores (manganese–porphyrin complexes) using statistical physics formalism

AIP Advances ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 065210
Author(s):  
Haifa A. Alyousef ◽  
Mohamed Ben Yahia ◽  
Fatma Aouaini
Keyword(s):  
Adsorption Isotherms ◽  
Statistical Physics ◽  
Manganese Porphyrin ◽  
Microscopic Interpretation

scholarly journals Modeling the removal of Reactive Red 120 dye from aqueous effluents by activated carbon

2020 ◽  
Vol 82 (4) ◽  
pp. 651-662
Author(s):  
Kods Oueslati ◽  
Eder C. Lima ◽  
Fakher Ayachi ◽  
Mariene R. Cunha ◽  
Abdelmottaleb Ben Lamine
Keyword(s):  
Activated Carbon ◽  
Adsorption Isotherms ◽  
Statistical Physics ◽  
Adsorption Process ◽  
Dye Adsorption ◽  
Physical Nature ◽  
Experimental Conditions ◽  
Reactive Red 120 ◽  
Receptor Sites ◽  
Aqueous Effluents

Abstract The adsorption isotherms of Reactive Red 120 (RR-120) on Brazilian pine-fruit shell activated carbon, at six temperatures (298, 303, 308, 313, 318 and 323 K) and pH = 6, were determined and interpreted using a double layer model with one energy. A statistical physics treatment established the formulation of this model. Steric and energetic parameters related to the adsorption process, such as the number of adsorbed molecules per site, the receptor sites density and the concentration at half-saturation, have been considered. Thermodynamic potential functions such as entropy, internal energy and Gibbs free enthalpy are analyzed, and the choice of the models is based on assumptions in correlation with experimental conditions. By numerical fitting, the investigated parameters were deduced. The theoretical expressions provide a good understanding and interpretation of the adsorption isotherms at the microscopic level. We believe that our work contributes to new theoretical insights on the dye adsorption in order to know the physical nature of the adsorption process.

scholarly journals A microscopic and macroscopic investigation of the adsorption of N719 dye on ZnO nanopowders (ZNP) and ZnO nanorods (ZNR) for dye sensitized solar cells using statistical physics treatment and DFT simulation

RSC Advances ◽  
2020 ◽  
Vol 10 (46) ◽  
pp. 27615-27632 ◽  
Author(s):  
Marwa Ben Manaa ◽  
Noureddine Issaoui ◽  
Youssef O. Al-Ghamdi ◽  
Hafedh Belmabrouk ◽  
Abdelmottaleb Ben Lamine
Keyword(s):  
Solar Cells ◽  
Adsorption Isotherms ◽  
Electrostatic Potential ◽  
Statistical Physics ◽  
Molecular Electrostatic Potential ◽  
Zno Nanorods ◽  
Dye Sensitized Solar Cells ◽  
Dft Simulation ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Adsorption isotherms of N719 dye on (a) ZNP and (b) ZNR and the molecular electrostatic potential (MEP) map of (c) N719 dye and (d) ZnO.

A new statistical physics model to interpret the binary adsorption isotherms of lead and zinc on activated carbon

2016 ◽  
Vol 214 ◽  
pp. 220-230 ◽  
Author(s):  
Lotfi Sellaoui ◽  
Tolga Depci ◽  
Ali Rıza Kul ◽  
Salah Knani ◽  
Abdelmottaleb Ben Lamine
Keyword(s):  
Activated Carbon ◽  
Adsorption Isotherms ◽  
Statistical Physics ◽  
Binary Adsorption ◽  
Lead And Zinc ◽  
Physics Model ◽  
Statistical Physics Model

Application of statistical physics formalism to the modeling of adsorption isotherms of ibuprofen on activated carbon

2015 ◽  
Vol 387 ◽  
pp. 103-110 ◽  
Author(s):  
Lotfi Sellaoui ◽  
Hanen Guedidi ◽  
Salah Knani ◽  
Laurence Reinert ◽  
Laurent Duclaux ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Adsorption Isotherms ◽  
Statistical Physics ◽  
Modeling Of Adsorption
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