| Titre : |
Extraction of reactive dyes from aqueous solutions by halogen-free ionic liquids |
| Type de document : |
texte imprimé |
| Auteurs : |
Jazmin Narcedalia Castillo-Cervantes, Auteur ; Irina Victorovna Lijanova, Auteur ; Natalya Victorovna Likhanova, Auteur ; Octavio Olivares-Xometl, Auteur ; Juan Navarrete-Bolanos, Auteur ; Diana Rosa Gomora-Herrera, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 417-426 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Colorants réactifs
Extraction (chimie)
Extraction liquide-liquide
Fourier, Spectroscopie infrarouge à transformée de
Liquides ioniques -- Synthèse
Solutions aqueuses (chimie)
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Dyes are commonly used in various industries and unfortunately many of them are discharged into water bodies, causing environmental problems. In the current study, three hydrophobic, halogen-free ionic liquids were synthesised and their capability as extracting agents was evaluated using four reactive dyes (CI Reactive Blue 4, CI Reactive Black 5, CI Reactive Orange 16 and CI Reactive Red 2). The ionic liquids, immiscible with the aqueous phase, could extract the reactive dyes from aqueous solutions, withdrawing the same amount of weight. The effects of pH and temperature on the extraction process were also studied. Trioctylmethyl ammonium ethylenediaminetetraacetate displayed a high extraction efficiency (99%), where only 33 mg of ionic liquids extracted 50 mg of CI Reactive Blue 4. Fourier Transform–infrared spectroscopy was used to screen the interaction between the ionic liquid and CI Reactive Blue 4 during the extraction stage. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Synthesis of the ILs - Test solutions - Liquid-liquid extraction procedure
- RESULTS AND DISCUSSION : Synthesis and characterisation of the ILs - Extraction process - FTIR data |
| DOI : |
10.1111/cote.12429 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12429 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33374 |
in COLORATION TECHNOLOGY > Vol. 135, N° 6 (12/2019) . - p. 417-426
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