| Titre : |
Preparation of amino-terminated hyperbranched buffing dust and its adsorption property towards acid fuchsin : Use of an industry by-product to adsorb dyestuffs |
| Type de document : |
texte imprimé |
| Auteurs : |
Jie Liu, Auteur ; Zhang Feifei, Auteur ; Yinghu Song, Auteur ; Zhendi An, Auteur ; Yanchun Li, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 31-40 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse quantitative (chimie)
Caractérisation
Colorants -- Adsorption
Cuirs et peaux -- Déchets -- Recyclage
Eaux usées -- Epuration
Electrostatique
Fuchsine, Acide
Isotherme d'adsorption
Poids moléculaires
Polymères ramifiés
Poussière de cuir
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Buffing dust (BD) is generated in the buffing process of leather making. Amino-terminated hyperbranched polymer (HBPN) was used to modify the BD to prepare hyperbranched polymer modified BD (HBPN-B). The molecular weight of HBPN was analysed by GPC and FTIR, SEM-EDS and BET analysis were employed to characterise the structure of the HBPN-B. The BET specific surface area of HBPN-B was 7.128m2.g-1. The EDS analysis results show that after modification, the N content of BD increased from 21.23% to 24.47%. HBPN-B was then used in the adsorption of dye from wastewater. The influences of reaction conditions on the adsorption properties of HBPN-B towards acid fuchsin were studied and the adsorption kinetic and isotherm were researched. The removal rate of acid fuchsin by HBPN-B increased with the increase of pH, the removal rate reached the maximum at pH2.5. Electrostatic attraction was the chief adsorption mechanism. The removal rate increased with the increase of HBPN-B dosage and temperature. The adsorption process was in conformity with pseudo-second order kinetic and Langmuir adsorption isotherm model adsorption. |
| Note de contenu : |
- MATERIALS AND METHODS : Chemicals - Preparation of HBPN-B - The characterisation of HBPN-B - Quantification of acid fuchsin - Batch adsorption experiments - Adsorption kinetic - Adsorption isotherm
- RESULTS AND DISCUSSION : Characterisation of the HBPN-B - Effect of conditions of solution to the adsorption property of HBPN-B - Kinetics adsorption studies - Adsorption isotherm
- Table 1 : GPC analysis result of HBPN
- Table 2 : BET characterisation of biosorbent
- Table 3 : Constants for the kinetic models of acid fuchsin on the HBPN-B
- Table 4 : Isotherm parameters obtained from the fitting to experimental results on the adsorption of acid fuchsin onto the HBPN-B |
| En ligne : |
https://drive.google.com/file/d/1HBFOgdQ3CcXaP5KEwrSo-QjLF-JlWCTB/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35315 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 105, N° 1 (01-02/2021) . - p. 31-40
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