Skip to Main content Skip to Navigation
Theses

Matériaux nanocomposites sur supports céramiques pour l'assainissement de l'air intérieur

Abstract : In developed countries, people spend more than 85% of their time in enclosed areas. Yet, air can carry pathogenic microorganisms such as Mycobacterium tuberculosis or Legionella pneumophila. In this context, the microbiologic quality of indoor air is an issue of common interest. Air treatment technologies for the microbial disinfection of indoor air do exist. However, most of them need external energy inputs and some do produce harmful compounds (nanoscale powders, ozone) when used. Therefore, the main goal of this thesis is to develop new antimicrobial materials for the disinfection of indoor air. These materials shall not need any energetic assistance and shall not release harmful compounds. To achieve this goal, this thesis focused on functionalizing the surface of macroscopic alumina beads. Several active compounds have been studied: manganese dioxide for its oxidizing properties, zinc oxide for its crystalline structure allowing the synthesis of nanoscale blades for the mechanical disruption of microorganisms and silver for its well-known antimicrobial ability. To assess the germicidal properties of these new materials, new test units have been designed. In particular, this thesis explored the use of tests units working in dynamic conditions with ambient air to evaluate the germicidal ability of materials in lifelike conditions.
Document type :
Theses
Complete list of metadatas

Cited literature [251 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-02524042
Contributor : Abes Star :  Contact
Submitted on : Tuesday, August 25, 2020 - 4:03:08 PM
Last modification on : Tuesday, August 25, 2020 - 4:21:46 PM

File

84294_CHAUVIN_2019_archivage.p...
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02524042, version 2

Collections

Citation

Aliénor Dutheil de la Rochère. Matériaux nanocomposites sur supports céramiques pour l'assainissement de l'air intérieur. Matériaux. IMT - MINES ALES - IMT - Mines Alès Ecole Mines - Télécom, 2019. Français. ⟨NNT : 2019EMAL0011⟩. ⟨tel-02524042v2⟩

Share

Metrics

Record views

724

Files downloads

64