@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix vcard: . @prefix xsd: . a dcat:Dataset ; dct:description """ The main objective of this work was to study the potential of three-dimension beta silicon carbide (β-SiC) alveolar foams for use as photocatalyst support, targeting the implementation of structured photocatalytic reactors for air treatment. Medium surface area β-SiC alveolar foams were synthesized according to the Shape Memory Synthesis concept, consisting in the controlled carburization of a preshaped polyurethane foam. First, the degradation of three model pollutants (methylethylketone, ammonia and hydrogen sulfide) was performed over TiO2 thin layers in a flow-through reactor for selecting three photocatalysts of interest – Hombikat UV100, PC500 and P25 TiO2 – among six commercial standards. The powderly photocatalysts were further immobilized onto β-SiC foams. After an optimization step in terms of mean cell size, light transmission, photocatalyst nature and weight content as well as of the immobilization method, the TiO2/β-SiC foam photocatalytic media was characterized and its photocatalytic behaviour was compared in a single-pass mode as well as in a recirulation mode inside a 2 m3 chamber, to those obtained on a TiO2 thin layer and with a well-known commercial photocatalytic felt media made from quartz fibers supporting sol-gel TiO2. The photocatalytic media elaborated with β-SiC alveolar foams exhibited superior performances compared to that of the commercial felt standard. The foams acted as static mixing within the reactor and allowed a more efficient use of the reactor volume, by increasing the photocatalyst density per reactor volume unit, while maintaining however a suitable illumination within the reactor core as well as very low pressure drops. """ ; dct:identifier "NNT: 2012STRAF039" ; dct:issued "2026-05-10T15:30:40.614419"^^xsd:dateTime ; dct:language "fr" ; dct:modified "2026-05-10T15:30:40.614423"^^xsd:dateTime ; dct:publisher ; dct:title "Photocatalytic structured materials based on β silicon carbide foams for air treatment applications" ; dcat:contactPoint [ a vcard:Organization ; vcard:fn "CCSD" ] ; dcat:distribution ; dcat:keyword "air-treatment", "alveolar-foams", "chimothechemical-sciencesother", "infoeu-reposemanticsdoctoralthesis", "mousses-alveolaires", "photocatalyse", "photocatalyst", "theses", "traitement-de-lair" ; dcat:landingPage . a dcat:Distribution ; dct:format "HTML" ; dct:issued "2026-05-10T15:30:40.628568"^^xsd:dateTime ; dct:modified "2026-05-10T15:30:40.600239"^^xsd:dateTime ; dct:title "Photocatalytic structured materials based on β silicon carbide foams for air treatment applications" ; dcat:accessURL . a foaf:Agent ; foaf:name "test_moissonnage_selune" . a foaf:Document .