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Caesalpinia bonducella leaf powder as biosorbent for Cu (II) removal from aqueous environment / Gutha Yuvaraja in Industrial & engineering chemistry research, Vol. 51 N° 34 (Août 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 34 (Août 2012) . - pp. 11218-11225 Titre : Caesalpinia bonducella leaf powder as biosorbent for Cu (II) removal from aqueous environment : Kinetics and isotherms Type de document : texte imprimé Auteurs : Gutha Yuvaraja, Auteur ; Munagapati Venkata Subbaiah, Auteur ; Abburi Krishnaiah, Auteur Année de publication : 2012 Article en page(s) : pp. 11218-11225 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Kinetics  Powder  Plant  leaf Résumé : The ability of Caesalpinia bonducella leaf powder has been utilized as an inexpensive biosorbent for the removal of Cu(II) from aqueous media. Optimum biosorption conditions were found to be pH 5.0, adsorbent dosage 0.07 g/L, agitation speed 180 rpm, and equilibrium time 120 min. Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis, and X-ray diffraction were used to characterize the surface functional groups, structure, compositional analysis, and crystallinity of the biosorbent FT-IR analysis shows the involvement of various functional groups such as hydroxyl, amide, carboxyl, and carbonyl groups in the removal of Cu(II) from aqueous environment. Kinetic data were fitted well to a pseudo-second-order kinetic model compared to pseudo-first-order and intraparticle diffusion kinetic models. The equilibrium data were well fitted by the Langmuir isotherm model by revealing the maximum sorption capacity of 76.92 mg/g. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26299447 [article] Caesalpinia bonducella leaf powder as biosorbent for Cu (II) removal from aqueous environment : Kinetics and isotherms [texte imprimé] / Gutha Yuvaraja, Auteur ; Munagapati Venkata Subbaiah, Auteur ; Abburi Krishnaiah, Auteur . - 2012 . - pp. 11218-11225. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 34 (Août 2012) . - pp. 11218-11225 Mots-clés : Kinetics  Powder  Plant  leaf Résumé : The ability of Caesalpinia bonducella leaf powder has been utilized as an inexpensive biosorbent for the removal of Cu(II) from aqueous media. Optimum biosorption conditions were found to be pH 5.0, adsorbent dosage 0.07 g/L, agitation speed 180 rpm, and equilibrium time 120 min. Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis, and X-ray diffraction were used to characterize the surface functional groups, structure, compositional analysis, and crystallinity of the biosorbent FT-IR analysis shows the involvement of various functional groups such as hydroxyl, amide, carboxyl, and carbonyl groups in the removal of Cu(II) from aqueous environment. Kinetic data were fitted well to a pseudo-second-order kinetic model compared to pseudo-first-order and intraparticle diffusion kinetic models. The equilibrium data were well fitted by the Langmuir isotherm model by revealing the maximum sorption capacity of 76.92 mg/g. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26299447