Results 21 to 30 of about 41,321 (261)

Modelling Methane Adsorption Isotherms on Shale at Different Temperatures

open access: yesAtmosphere, 2022
Prediction of adsorption isotherms under different temperatures is significant to reserve estimation of shale gas reservoirs. Based on the Polanyi adsorption potential theory and Langmuir adsorption theory, a method was presented to predict adsorption ...
Dongqing Zhang
doaj   +1 more source

Adsorption isotherm on ferrites

open access: yesCommunications, Faculty Of Science, University of Ankara Series B Chemistry and Chemical Engineering, 1994
Tlıe corrosion behaviour of the prepared Materials was studied by mcans of weight-loss techniquc in stagnant solution of (0.01 M) sulphuric acid in presence of thiourea as an inhibitor. Higher concentration of thiourea reduces the corrosion rate of thc samples and proteetion effi- cicncy of thiourea was found to be 80 % for ferrites Proteetion is ...
A. M. NASSAR   +3 more
openaire   +3 more sources

A study of adsorption in aqueous solution of p,o,m-Chlorophenol on Iraqi siliceouns rocks powder

open access: yesمجلة بغداد للعلوم, 2007
Adsorption of Chlorophenol compounds in aqueous solution on Iraqi siliceouns rocks powder have been investigated. UV technique has been used to determine the adsorption isotherms.
Ammar J. Mohammed
doaj   +1 more source

Models for Type VI Adsorption Isotherms from a Statistical Mechanical Formulation

open access: yesAdsorption Science & Technology, 2013
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
M. Ben Yahia   +5 more
doaj   +1 more source

Modelling of Single-Gas Adsorption Isotherms

open access: yesMetals, 2022
The present paper reviews and analyses different models that could be used to describe the adsorption equilibrium of pure gases. The adsorption equilibrium of hydrogen, nitrogen and methane is characterised and modelled. Several thermodynamic conceptions
Chavdar Chilev   +3 more
doaj   +1 more source

Adsorption isotherms of charged nanoparticles [PDF]

open access: yesSoft Matter, 2016
We present theory and simulations which allow us to quantitatively calculate the amount of surface adsorption excess of charged nanoparticles onto a charged surface. The theory is very accurate for weakly charged nanoparticles and can be used at physiological concentrations of salt.
Santos, Alexandre P. dos   +3 more
openaire   +3 more sources

Suitability of L- and U-Curve Methods for Calculating Reasonable Adsorption Energy Distributions from Nitrogen Adsorption Isotherms

open access: yesAdsorption Science & Technology, 2014
Adsorption energy distributions (AEDs) can be calculated from measured adsorption isotherms by numerical methods upon regularization of the adsorption integral equation.
Steffen Arnrich   +3 more
doaj   +1 more source

Cerofolini’s Model and the Fractal Adsorption Isotherms

open access: yesFractal and Fractional, 2023
The close link between the roughness of a surface and its adsorptive properties in Cerofolini’s model yields, with an adequate choice of adsorption energy, the well-known Dubinin-Radushkevich or Freundlich adsorption isotherms.
Gianina Dobrescu   +4 more
doaj   +1 more source

Protein Adsorbate Biohybrids and Sequential Hystallosteric Protein Adsorption

open access: yesCurrent Directions in Biomedical Engineering, 2021
Protein adsorption on solid surfaces is characterized by multivalence, binding-unit overlap, sequential adsorption, surface allosterics, lateral interactions and pronounced adsorption-desorption hysteresis, giving rise to the sequential, hystallosteric ...
Jennissen Herbert P.
doaj   +1 more source

Monte Carlo Simulation and Exact Statistical Mechanical Lattice Models as a Development Tool for Zeolite Multi-Component Adsorption Isotherm Derivation

open access: yesAdsorption Science & Technology, 2012
Developing a suitable separation and purification procedure for multi-component gas mixtures is a ubiquitous problem. Very little is known experimentally about multi-component adsorption isotherms, yet these are crucially important for designing ...
G. Manos   +4 more
doaj   +1 more source

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