[article]
| Titre : |
Phosphorylated collagen fibre : preparation and use for adsorbing heavy metals |
| Type de document : |
texte imprimé |
| Auteurs : |
Jiao Limin, Auteur ; Xuepin Liao, Auteur ; Bi Shi, Auteur |
| Année de publication : |
2009 |
| Article en page(s) : |
p. 201-206 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Phosphorylated collagen fibre (P-CF) was prepared using phosphorus oxychloride as a phosphorylating reagent. Solid state 31P-NMR and FTIR analysis proved that phosphate groups were bound with amino groups of collagen fibre.As a novel fibrous adsorbent, P-CF performed to be an effective adsorbent for metal ions, such as Pb2+, Cd2+, Co2+, Ni2+, Cu2+, Zn2+ and UO2 2+.
By using Cd2 as probe ion, the fundamental adsorption behaviours of P-CF to metal ions were investigated. The adsorption capacity was significatly influenced by pH value, and the optimal pH for adsorbing Cd2+ located in the pH range of 3.83-6.22. The adsorption isotherms of Cd2+ were well fitted by the langmuir equation. The adsorption capacity was increased with the increase of temperature. The adsorption kinetics was satisfactorily described by the pseudo-second-order rate model, implying that the chemical adsorption of P-CF to Cd2+ is the rate controlling step. Moreover, P-CF can be easily desorbed using dilute HNO3 solution. |
| En ligne : |
https://drive.google.com/file/d/1f1luv_KVuG7Luz_kx7kxwST9GisqfiqD/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6281 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 93, N° 5 (09-10/2009) . - p. 201-206
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Phosphorylated collagen fibre : preparation and use for adsorbing heavy metals in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 93, N° 5 (09-10/2009)
