[article]
| Titre : |
Production of dye nanoparticles via a supercritical gas anti-solvent process and optimisation of the process conditions |
| Type de document : |
texte imprimé |
| Auteurs : |
Mitra Amani, Auteur ; Nedasadat Saadati Ardestani, Auteur ; Seyed Ali Sajadian, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 703-718 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse de variance En statistique, l'analyse de la variance (terme souvent abrégé par le terme anglais ANOVA : ANalysis Of VAriance) est un ensemble de modèles statistiques utilisés pour vérifier si les moyennes des groupes proviennent d'une même population. Les groupes correspondent aux modalités d'une variable qualitative (p. ex. variable : traitement; modalités : programme d'entrainement sportif, suppléments alimentaires ; placebo) et les moyennes sont calculés à partir d'une variable continue (p. ex. gain musculaire).
Ce test s'applique lorsque l'on mesure une ou plusieurs variables explicatives catégorielles (appelées alors facteurs de variabilité, leurs différentes modalités étant parfois appelées "niveaux") qui ont de l'influence sur la loi d'une variable continue à expliquer. On parle d'analyse à un facteur lorsque l'analyse porte sur un modèle décrit par un seul facteur de variabilité, d'analyse à deux facteurs ou d'analyse multifactorielle sinon. (Wikipedia)
Caractérisation
Colorants
Fluides supercritiques
Jaune
Nanoparticules -- Synthèse
Plan d'expérience
Quinoléine
Statistique
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Nanoparticles of dyes and pigments with high quality and efficiency can be successfully used in the supercritical dyeing process of the textile industries, which is introduced as a waterless and greener dyeing method. In this study, nanoparticles of the Quinoline yellow dye, known as colour index (CI) Solvent Yellow 33, were precipitated via the supercritical gas anti-solvent (GAS) process. This process was performed at various pressures (100, 130, and 150 bar), temperatures (308, 318, and 328 K), and solute concentrations (10, 30, and 50 mg/ml), designed by the Box–Behnken design (BBD) method. It was found that increasing the pressure, reducing the temperature, and reducing the initial concentration of the liquid solution provided favourable conditions for the production of nano-sized particles with narrow size distribution and uniform morphology. Accordingly, the optimum operating conditions of the GAS process which resulted in precipitation of the dye nanoparticles, with a mean particle size of 125 nm, were determined at a temperature of 318 K, pressure of 150 bar, and the initial concentration of 10 mg/ml. The characteristics of the precipitated particles were analysed with high-performance liquid chromatography (HPLC), field-emission scanning electron microscopy (FESEM), differential scanning calorimetry (DSC), X-ray diffraction (XRD), dynamic light scattering (DLS), and Fourier-transform infrared (FTIR) spectrometry analysis. Based on the DSC and XRD results, GAS processed samples have lower crystallinity and lower particle size. Also, nano-metric size and narrow size distribution of the precipitated dye particles were confirmed through the FESEM and DLS results. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials - Experimental procedure to produce SY33 nanoparticles - Experimental design - Physical characterisation of the GAS processed SY33 particles
- RESULTS AND DISCUSSION : Experimental design and statistical analysis - Effect of operational conditions on the size of precipitated particles through the GAS process - Physical characterisation of the precipitated SY33 particles in the GAS process
- Table 1 : Variables and their levels in the gas anti-solvent (GAS) process
- Table 2 : Matrix of experimental runs established by Box–Behnken design with their predicted and actual responses
- Table 3 : Analysis of variance (ANOVA) for the fitted model to the colour index (CI) Solvent Yellow 33 (SY33) crystallisation gas anti-solvent (GAS) process |
| DOI : |
https://doi.org/10.1111/cote.12682 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12682 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40121 |
in COLORATION TECHNOLOGY > Vol. 139, N° 6 (12/2023) . - p. 703-718
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Production of dye nanoparticles via a supercritical gas anti-solvent process and optimisation of the process conditions in COLORATION TECHNOLOGY, Vol. 139, N° 6 (12/2023)
