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Lecturer(s)
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Berka Karel, prof. RNDr. Ph.D.
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Kvítek Libor, prof. RNDr. CSc.
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Panáček Aleš, doc. RNDr. Ph.D.
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Course content
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General description of colloidal systems, their definition, characteristics, preparation and stability. Molecular-kinetic properties of colloidal systems-Brownian motion, diffusion, osmosis. Sedimentation analysis, use of osmosis when purifying and analysing macromolecular substances. Optical properties of colloidal systems-light diffusion-static and dynamic light scattering. Diffusion-based methods. Microscopic methods of studying colloidal systems. Electrokinetic phenomena-electrokinetic potential and its measurement, capillary effects. Electrophoresis and electroosmosis, influence of electric properties on the stability of colloids. Reology of colloidal systems, viscosity and use of viscosity measurements for studying colloids. Surface tension and its measurement. Surfactants in colloid chemistry, flotation. Use of the colloids and their specific properties in industry and research.
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Learning activities and teaching methods
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Monologic Lecture(Interpretation, Training), Work with Text (with Book, Textbook)
- Preparation for the Exam
- 30 hours per semester
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Learning outcomes
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The aim of the lecture is to introduce students to fundamental concepts in the study of colloidal systems. It focuses primarily on determining particle size in colloidal systems and on describing the basic properties of colloids, including the measurement of zeta potential.
Ability to define main concepts, describe main approaches in the colloid chemistry. Explain the reason for the differences in values obtained when determining the average size of colloidal particles using various experimental methods.
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Prerequisites
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The student should have a command of the fundamentals of physical chemistry and the basic principles of mathematical statistics.
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Assessment methods and criteria
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Written exam
Final test (requiring the formulation of answers) with a minimum success rate of 50%.
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Recommended literature
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L. Bartovská, M. Šišková. (2010). Fyzikální chemie povrchů a koloidních soustav. Praha.
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1. S. S. Vojuckij :. (1984). Kurs koloidní chemie. Praha.
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2. E. D. Ščukin, A.V. Percov, E. A. Amelinová :. (1990). Koloidní chemie,. Praha.
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3. M. Takeo. (1999). Disperse systems. , Wiley-VCH, Weinheim.
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4. R. Hunter :. (2004). Foundations of colloid science,. Oxford.
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