Adsorption Isotherms in Liquid Phase: Experimental, Modeling, and Interpretations

2017 ◽  
pp. 19-51 ◽  
Author(s):  
Jeferson Steffanello Piccin ◽  
Tito Roberto Sant’Anna Cadaval ◽  
Luiz Antonio Almeida de Pinto ◽  
Guilherme Luiz Dotto
Keyword(s):  
Liquid Phase ◽  
Adsorption Isotherms ◽  
Experimental Modeling

Metal-Assisted Reactions. Part XXX. Control of Rates of Heterogeneously Catalyzed Transfer Hydrogenolysis through Changes in Solvent Composition

2003 ◽  
Vol 56 (5) ◽  
pp. 423 ◽  
Author(s):  
José A. C. Alves ◽  
Amadeu F. Brigas ◽  
Robert A. W. Johnstone
Keyword(s):  
Liquid Phase ◽  
Adsorption Isotherms ◽  
Mixed Solvent ◽  
Phase Transfer ◽  
Catalyst Surface ◽  
Solvent System ◽  
Solvent Composition ◽  
Phase Solubility ◽  
Mixed Solvent System ◽  
Rate Of Reaction

Adsorption isotherms in the liquid phase can be used to determine the relative strengths of adsorption of reactants and solvent at a catalyst surface. Such isotherms can then be used to indicate which type of solvent would be most suitable for a heterogeneously catalyzed reaction in the liquid-phase. Solubility in any chosen solvent is also important. As examples, rates of heterogeneously catalyzed liquid-phase transfer hydrogenolyzes of aryl tetrazolyl ethers (1) have been shown to be highly dependent on both the nature of the solvent and on the solution concentrations of the reactants. The rate of reaction can be varied from zero to a maximum and then back to zero simply by adjusting the solubility of the reductant through changes in the proportion of water in a mixed-solvent system.

scholarly journals An atomistic view on liquid phase adsorption

2021 ◽  
Author(s):  
Hamzeh Kraus ◽  
Niels Hansen
Keyword(s):  
Liquid Phase ◽  
Adsorption Isotherms ◽  
Guest Molecule ◽  
Md Simulations ◽  
Empirical Models ◽  
Silica Support ◽  
Free Energies ◽  
Liquid Phase Adsorption ◽  
Molecular Interpretation ◽  
Aromatic Guest

Abstract The effect of immobilized β-cyclodextrin (bCD) molecules inside a mesoporous silica support on the uptake of benzene and p-nitrophenol from aqueous solution was investigated using all-atom molecular dynamics (MD) simulations. The calculated adsorption isotherms are discussed with respect to the free energies of binding for a 1:1 complex of bCD and the aromatic guest molecule. The adsorption capacity of the bCDcontaining material significantly exceeds the amount corresponding to a 1:1 binding scenario, in agreement with experimental observations for benzene adsorption. The demonstrated feasibility of classical all-atom MD simulations to calculate liquid phase adsorption isotherms paves the way to a molecular interpretation of experimental data that are too complex to be described by empirical models.

Relation between adsorption from binary solutions and adsorption of pure gaseous components on the same adsorbent. The effect of the bulk liquid phase

1980 ◽  
Vol 45 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Marie Šišková
Keyword(s):  
Liquid Phase ◽  
Adsorption Isotherms ◽  
Gaseous Phase ◽  
Bulk Liquid ◽  
Concentration Change ◽  
Consistency Test ◽  
Experimental Adsorption ◽  
Adsorption From Solutions ◽  
Binary Solutions ◽  
Solid Adsorbent

The thermodynamic consistency test proposed by Sircar and Myers was employed to show the effect of the bulk liquid phase on the adsorption from solutions on a solid adsorbent. This effect can invalidate the prediction of the isotherm of the concentration change in a solution from experimental adsorption isotherms of pure components adsorbed from the gaseous phase on the same adsorbent.

Liquid–Liquid Phase Equilibria for Soybean Oil Methanolysis: Experimental, Modeling, and Data Prediction

2014 ◽  
Vol 53 (9) ◽  
pp. 3731-3736 ◽  
Author(s):  
Abraham Casas ◽  
José Francisco Rodríguez ◽  
Gonzalo L. del Peso ◽  
Rosalía Rodríguez ◽  
Gemma Vicente ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Phase Equilibria ◽  
Soybean Oil ◽  
Experimental Modeling ◽  
Data Prediction

scholarly journals Effect of Ultrasound on Liquid Phase Adsorption of Azeotropic and Non-azeotropic Mixtures: Generation of Adsorption Isotherms According to Gibbs Dividing Plane Theory

2014 ◽  
Vol 14 (13) ◽  
pp. 1420-1424
Author(s):  
Duduku Krishnaiah ◽  
Rosalam Sarbatly ◽  
S.M. Anisuzzama ◽  
Rajesh Nithyanand ◽  
Phong Ming San
Keyword(s):  
Liquid Phase ◽  
Adsorption Isotherms ◽  
Liquid Phase Adsorption ◽  
Plane Theory ◽  
Azeotropic Mixtures

Determination of fractal dimensions of solid carbons from gas and liquid phase adsorption isotherms

Carbon ◽  
2000 ◽  
Vol 38 (4) ◽  
pp. 573-588 ◽  
Author(s):  
Nasrin R. Khalili ◽  
Minzi Pan ◽  
Giselle Sandı́
Keyword(s):  
Liquid Phase ◽  
Adsorption Isotherms ◽  
Fractal Dimensions ◽  
Liquid Phase Adsorption
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