Photocatalytic activity of titania deposited on luminous textiles for water treatment
| Autor: | Chloe Indermühle, Eric Puzenat, Frederic Dappozze, France Simonet, Lina Lamaa, Laure Peruchon, Cédric Brochier, Chantal Guillard |
|---|---|
| Přispěvatelé: | IRCELYON-Catalyse Hétérogène pour la Transition Energétique (CATREN), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), IRCELYON-Catalytic and Atmospheric Reactivity for the Environment (CARE) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Formic acid
General Chemical Engineering Batch reactor General Physics and Astronomy 02 engineering and technology General Chemistry [CHIM.CATA]Chemical Sciences/Catalysis engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences [SDE.ES]Environmental Sciences/Environmental and Society 0104 chemical sciences chemistry.chemical_compound Chemical engineering Coating chemistry Powder coating 13. Climate action Photocatalysis engineering Phenol Degradation (geology) Water treatment 0210 nano-technology |
| Zdroj: | Journal of Photochemistry and Photobiology A: Chemistry Journal of Photochemistry and Photobiology A: Chemistry, Elsevier, 2018, 361 (---), pp.67-75. ⟨10.1016/j.jphotochem.2018.04.047⟩ |
| ISSN: | 1010-6030 |
| Popis: | The originality of the present photocatalytic system consists in using luminous textiles for a double purpose: (i) supporting TiO2 photocatalysts and (ii) conveying UV-light all along the optical fibers and distributing it to the TiO2 particles deposited. Photocatalytic luminous textiles were tested in terms of stability and their photocatalytic activities were determined in the purification of water containing either formic acid or phenol. Luminous textiles were coated with TiO2 sols and or suspensions. The location of TiO2 was analysed by ESEM and EDX analysis and was shown to be uniform over the surface of optical fiber textiles, except for TiO2 powder coating, exhibiting titania present as clusters. A good adhesion and stability of the photocatalyst layer were found. The photocatalytic performances of the different TiO2 coatings, tested in the degradation of two model pollutants (formic acid and phenol), in a batch reactor indicated an optimum mass of TiO2 of about 2 mg/cm2. Degradation tests highlighted the higher activity of TiO2 powder coating in comparison with others coating tested, whatever the catalyst mass or pollutant tested. Photonic yields depend on the absorption properties of the coating. They range from 23 to 60% for formic acid degradation and from 6 to 8% for that of phenol, proving the efficiency of such luminous textile coating by TiO2. The performances observed indicate that luminous textiles are good candidates for supporting titania photocatalysts, thus avoiding tedious final filtrations when using suspensions |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect