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Surface and colloid chemistry [ LBIR1319 ]


3.0 crédits ECTS  30.0 h   2q 

Teacher(s) Dupont Christine ;
Language French
Place
of the course
Louvain-la-Neuve
Online resources

iCampus

Prerequisites

General physics, General chemistry, Introduction to thermodynamics

Main themes

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

Aims

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.

Evaluation methods

Written exam, including an open book question

Teaching methods

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

Content

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.

Bibliography

Syllabus. Illustrations of the lectures available through iCampus.

Cycle et année
d'étude
> Bachelor in Bioengineering
> Master [120] in Environmental Bioengineering
Faculty or entity
in charge
> AGRO


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