2025
Adsorption by Materials
Name: Adsorption by Materials
Code: QUI13542M
6 ECTS
Duration: 15 weeks/156 hours
Scientific Area:
Chemistry
Teaching languages: Portuguese
Languages of tutoring support: Portuguese
Sustainable Development Goals
Learning Goals
In this curricular unit it is intended that the students acquire fundamental knowledge about adsorption by materials. At the end of the curricular unit, the students should be capable of: understanding models and interpretative theories of adsorption from the gas and liquid phases; critically and rationally apply data analysis methods, evaluating the advantages and limitations of each; recognise the complementary nature of methods for obtaining information on porosity and the interaction with the adsorbate; understand the adsorption of various gases and solutes by materials with different surface properties; recognise the role that the type of porosity and surface chemistry play in the performance of the material in various applications. It is also the intention to increase each students capacity for initiative and autonomy, in the planning and execution of laboratory tasks, in the organisation and presentation of the information, as well as their integration into research.
Contents
Theoretical component
1. General concepts and terminology. The role of adsorption in different scientific and technological contexts. 2. Adsorption from the gas phase. Experimental methodologies. Adsorption mechanisms. Adsorption isotherms. Models and theories, and their application for textural characterisation. Comparative methods. Adsorption of probe molecules for the acidity evaluation. Thermodynamics of adsorption. Kinetics of adsorption. Examples of adsorption of different gases and vapours by different classes of materials. 3. Adsorption from the liquid phase. Experimental methodologies. Adsorption from dilute solutions. Classification and interpretation of isotherms. Kinetics of adsorption. Examples of adsorption of cations, organic solutes and biomolecules by different materials.
Practical component
Analysis of adsorption isotherms. Experimental determination of isotherms of adsorption from gas phase and aqueous solutions by materials prepared in the UC Porous Materials.
1. General concepts and terminology. The role of adsorption in different scientific and technological contexts. 2. Adsorption from the gas phase. Experimental methodologies. Adsorption mechanisms. Adsorption isotherms. Models and theories, and their application for textural characterisation. Comparative methods. Adsorption of probe molecules for the acidity evaluation. Thermodynamics of adsorption. Kinetics of adsorption. Examples of adsorption of different gases and vapours by different classes of materials. 3. Adsorption from the liquid phase. Experimental methodologies. Adsorption from dilute solutions. Classification and interpretation of isotherms. Kinetics of adsorption. Examples of adsorption of cations, organic solutes and biomolecules by different materials.
Practical component
Analysis of adsorption isotherms. Experimental determination of isotherms of adsorption from gas phase and aqueous solutions by materials prepared in the UC Porous Materials.
Teaching Methods
Teaching is carried out in lecture classes of theoretical nature and practical. Additionally, at the beginning the students are provided with adsorption isotherms on different materials, which they should analyse, in out of time class, quantitatively on the basis of the theoretical concepts which are progressively introduced in the classes, being discussed with the teacher when needed.
Knowledge evaluation may be carried out by: individual written test (mark: NE); analysis of the adsorption isotherms and individual elaboration of a critical summary report (mark: NT); group report and performance during the laboratory classes (mark: NP). Only the written test is obligatory, leaving submission of the other elements to the criterion of each student. This option aims to make the students responsible for their own auto-evaluation of acquired knowledge. Depending on the elements available, the final mark is given by: NF=NE or NF=0.4NE+0.6NT or NF=0.3NE+0.4NT + 0.3NP.
Knowledge evaluation may be carried out by: individual written test (mark: NE); analysis of the adsorption isotherms and individual elaboration of a critical summary report (mark: NT); group report and performance during the laboratory classes (mark: NP). Only the written test is obligatory, leaving submission of the other elements to the criterion of each student. This option aims to make the students responsible for their own auto-evaluation of acquired knowledge. Depending on the elements available, the final mark is given by: NF=NE or NF=0.4NE+0.6NT or NF=0.3NE+0.4NT + 0.3NP.
Certificações
