Surface and colloid chemistry [ LBIR1319 ]

iCampus

General physics, General chemistry, Introduction to thermodynamics

Overview of colloidal systems and interfaces

Kinetic theory of colloidal systems: concepts, applications

Surface energy: concepts, applications

Adsorption: concepts, applications

Charged interfaces: physico-chemical models

Interactions between surfaces: concepts, applications

At the end of the course, the student will be able to:

-       Rephrase the concepts which allow understanding physico-chemical phenomena involving dispersed systems and interfaces (surfaces, colloids, nanometer-scale and supramolecular systems), and their impact on the behavior of such systems at the macroscale;

-       Evaluate the consequences of these phenomena, based on realistic numerical values;

-       Establish links between phenomena occurring at different scales (nano, micro, macro);

-       Explain phenomena observed in daily life or in typical bioengineering applications (materials, food, living systems, soils and environment, chemical industries, biotechnology) on the basis of concepts developed in the course;

-       Predict the behavior of simple systems.

Written exam, including an open book question

Lectures illustrated by experimental observations and mixed with the resolution of numerical exercises.

Introduction: overview of colloidal systems and interfaces.

Kinetic theory of colloidal systems: sedimentation, centrifugation, diffusion, Brownian movement.

Surface energy: surface tension, Laplace equation, wetting - capillarity - adhesion - cohesion - dispersion, porosimetry, illustrations.

Adsorption from solution: properties of monolayers, adsorption, Gibbs equation, Langmuir isotherm, illustrations.

Properties of charged surfaces: origin of charge, physical and chemical models of the double layer, interactions between particles and stability of colloidal systems.

Syllabus. Illustrations of the lectures available through iCampus.