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Design and synthesis of polymer-bound penta-aza ligand for selective adsorptive separation of cobalt(II) from zirconium(IV) / Pradipta Kumar in Industrial & engineering chemistry research, Vol. 50 N° 13 (Juillet 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 8195-8203 Titre : Design and synthesis of polymer-bound penta-aza ligand for selective adsorptive separation of cobalt(II) from zirconium(IV) Type de document : texte imprimé Auteurs : Pradipta Kumar, Auteur ; Rupa S. Madyal, Auteur ; Uttamkumar Joshi, Auteur Année de publication : 2011 Article en page(s) : pp. 8195-8203 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Ligand  Design Résumé : A penta-aza ligand was designed using the Density Functional Theory (DFT), synthesized, and then loaded on a polystyrene matrix to prepare a functional polymer as a Co(II) selective adsorbent. A comparative experimental study on adsorption of Co(II) and Zr(IV) revealed that the polymer-supported ligand is more selective toward Co(II) than Zr(IV) from aqueous acidic solutions. The maximum adsorption capacities of the adsorbent for Co(II) and Zr(IV) were 4.1 and 0.5 mg/g, respectively, at pH 1.0. Vibrational frequencies of the metal-ligand complexes were calculated with the VWN-BP functional to confirm true local minima. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332144 [article] Design and synthesis of polymer-bound penta-aza ligand for selective adsorptive separation of cobalt(II) from zirconium(IV) [texte imprimé] / Pradipta Kumar, Auteur ; Rupa S. Madyal, Auteur ; Uttamkumar Joshi, Auteur . - 2011 . - pp. 8195-8203. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 13 (Juillet 2011) . - pp. 8195-8203 Mots-clés : Ligand  Design Résumé : A penta-aza ligand was designed using the Density Functional Theory (DFT), synthesized, and then loaded on a polystyrene matrix to prepare a functional polymer as a Co(II) selective adsorbent. A comparative experimental study on adsorption of Co(II) and Zr(IV) revealed that the polymer-supported ligand is more selective toward Co(II) than Zr(IV) from aqueous acidic solutions. The maximum adsorption capacities of the adsorbent for Co(II) and Zr(IV) were 4.1 and 0.5 mg/g, respectively, at pH 1.0. Vibrational frequencies of the metal-ligand complexes were calculated with the VWN-BP functional to confirm true local minima. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24332144