Novel polyamidoamine-based hydrogel with an innovative molecular architecture as a Co2+-, Ni2+-, and Cu2+-sorbing material: cyclovoltammetry and extended X-ray absorption fine structure studies
Articolo
Data di Pubblicazione:
2006
Citazione:
Novel polyamidoamine-based hydrogel with an innovative molecular architecture as a Co2+-, Ni2+-, and Cu2+-sorbing material: cyclovoltammetry and extended X-ray absorption fine structure studies / P. Ferruti, E. Ranucci, S. Bianchi, L. Falciola, P.R. Mussini, M. Rossi. - In: JOURNAL OF POLYMER SCIENCE. PART A, POLYMER CHEMISTRY. - ISSN 0887-624X. - 44:7(2006), pp. 2316-2327. [10.1002/pola.21349]
Abstract:
An amphoteric polyamidoamine (PAA)-based hydrogel, named INT-PAA1, with a novel mol. architecture was prepd. and studied as a Co2+-, Ni2+-, and Cu2+ -sorbing material. This hydrogel was obtained by the synthesis of a PAA in the presence of a second presynthesized PAA carrying many primary amino groups as side substituents, which acted as a macromol. crosslinking agent. Therefore, it had an intersegmented structure. INT-PAA1 exhibited a remarkable sorption capacity and sorption rate for Co2+, Ni2+, and Cu2+ that were advantageously in situ monitored by cyclic voltammetry. An extended X-ray absorption fine structure spectroscopy characterization of the Co2+/INT-PAA1 complex was also performed. The very fast and quant. metal-ion uptake, made apparent by an intense coloring of the hydrogel, showed remarkable potential for environmental applications such as heavy metal detection, recovery, and elimination. [on SciFinder (R)]
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Electrochemistry; Extended X-ray absorption fine structure (EXAFS) spectroscopy; Hydrogels; Metal-polymer complexes; Polyamidoamines
Elenco autori:
P. Ferruti, E. Ranucci, S. Bianchi, L. Falciola, P.R. Mussini, M. Rossi
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