| Titre : |
Textile with immobilised nano titanium dioxide for repeated discoloration of CI Reactive Black 5 under UV-A |
| Type de document : |
texte imprimé |
| Auteurs : |
Majid Montazer, Auteur ; Samaneh Hashemikia, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 403-409 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorants réactifs
Colorants réactifs -- Effets du rayonnement ultraviolet
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Décoloration
Dioxyde de titane
Fibres textiles
Nanoparticules
Photocatalyse
Photodétérioration
Polyesters
Solutions aqueuses (chimie)
Traitement par irradiation
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
A commercially available catalyst with high photocatalytic activity (Degussa p-25) was immobilised on a comparatively inexpensive substrate that included cotton/polyester knitted fabric by citric acid under sonication. Scanning electron microscopy and energy-dispersive X-ray spectroscopy analysis revealed the presence of nano titanium dioxide on the surface of the fabric. Discoloration of CI Reactive Black 5 in aqueous solution was successfully carried out by adding a piece of nano titanium dioxide-treated fabric into the dye solution under UV-A irradiation. The ultraviolet–visible spectra indicated complete discoloration of CI Reactive Black 5 dye solutions. CI Reactive Black 5 solution, along with electrolytes including sodium sulphate and calcium carbonate, was also successfully discoloured with lower efficiency. Further, the photocatalytic properties of the nano titanium dioxide-immobilised fabric did not change after dye solution discoloration and it was used several times for discoloration of the same solutions. The proposed system can be developed on a large scale. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Immobilising nano TiO2 on the fabric - Photo reactor - Analytical procedures
- RESULTS AND DISCUSSION : Scanning electron microscopy and energy dispersive X-ray spectroscopy - Dye adsorption by nano TiO2 - Calibration - Photocatalytic degradation - CI reactive black 5 degradation kinetic - Influence of sodium sulphate - Effect of calcium carbonate - Effect of calcium carbonate/sodium sulphate - Repeatability of the nano TiO2 fabric photo activity |
| DOI : |
10.1111/j.1478-4408.2012.00394.x |
| En ligne : |
http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00394.x/pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15809 |
in COLORATION TECHNOLOGY > Vol. 128, N° 5 (2012) . - p. 403-409
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Textile with immobilised nano titanium dioxide for repeated discoloration of CI Reactive Black 5 under UV-A in COLORATION TECHNOLOGY, Vol. 128, N° 5 (2012)
