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Texture and behavior of solids

Type of study Doctoral
Language of instruction English
Code 9350-3017/02
Abbreviation TCHPL
Course title Texture and behavior of solids
Credits 10
Coordinating department Institute of Environmental Technology
Course coordinator Ing. Lenka Matějová, Ph.D.

Subject syllabus

1. Textural properties of solids – importance for industrial applications and for the behavior of substances in nature. Basic textural parameters (external, internal surface, apparent (mercury) and real (helium) solids density, total pore volume, pore distribution), characterization and size distribution of pores,
2. Theory of adsorption on solid substances - basic terms (adsorbent - adsorbate - adsorptive), characterization of adsorption sites - homogeneous, heterogeneous surfaces, adsorbate - adsorbent interaction, quantification of adsorption forces (Lennard - Jones potential), adsorption isotherms, Brunnauer's classification of adsorption isotherms.
3. Experimental procedures for determining textural parameters: adsorption methods – dynamic, static (gravimetric, volumetric); inverse gas and liquid chromatography method,
4. Adsorption from a liquid medium, calorimetric methods, pycnometric methods, high-pressure mercury porometry method (Washburn equation, derivation), X-ray scattering at small angles.
5. Types of adsorption isotherms, theory of monomolecular adsorption, Langmuir isotherm - description, derivation, linearization, determination of the internal surface, practical examples.
6. Multilayer adsorption theory (BET), derivation, linearization, internal surface calculation, point B.
7. Adsorption in micropores – theory of volume filling of micropores, Polányi potential, Dubinin – Polányi (Dubinin-Raduškevič) isotherm, Dibinin's postulates, conversion of DP isotherm to other temperatures and adsorbates, calculation of micropore surface according to Medek.
8-9. Adsorption in mesopores, capillary condensation, Kelvin equation, calculation of pore size distribution. Adsorption in a flow arrangement, Glueckauf's method of determination of adsorption isotherms.
10-11. Sorption from a liquid (aqueous) medium, evaluation of experimental data, characterization of adsorption sites for sorption of metal ions, organic pollutants. Evaluation of the texture of fabrics from the point of view of fractal geometry, the importance and possibilities of determining the fractal dimension D.
12. Flow of gases and liquids through a porous medium (viscous flow, Knudsen diffusion), specific permeability, connection between permeation characteristics and textural parameters of solid substances, experimental procedures.

Literature

Gregg,S.J., Sing,K.S.W.: Adsorption, Surface Area and Porosity (2nd edition), Academic Press, London, 1982.

Advised literature

Rouquerol, F., Rouquerol, J., Sing, K.: Adsorption by powders and porous solids, Academic Press, London, 2009, ISBN 0-12-598920-2 .
Adamson, A. W., Gast, A. P.: Physical Chemistry of Surfaces, John Willey and sons, New York, 1997.
R.Ch.Bansal, J.B.Donnet, F.Stoeckli: Active Carbon, Marcel Dekker Inc., New York, 1988.