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BIBTEX RIS

Processo alternativo para remoção de cobre (II) e níquel (II) de soluções aquosas utilizando cápsulas de quitosana - Álcool Polivinílico

2000; Brazilian Chemical Society; Volume: 23; Issue: 1 Linguagem: Inglês

10.1590/s0100-40422000000100003

ISSN

1678-7064

Autores

Antoninho Valentini, Mauro C. M. Laranjeira, Simone Fiori, Valfredo T. Fávere, Marilene Klug,

Tópico(s)

biodegradable polymer synthesis and properties

Resumo

AQUEOUS SOLU-TIONS, USING CHITOSAN -POLY(VINYL ALCOHOL) CAPSULES.Capsules were prepared from chitosan (QTS)-poly(vinyl alcohol) (PVA) blend by saline coacervation and then by formalization.A adsorbent based on chitosan, insoluble on acid solution, was obtained.The morphology, average diameters of QTS/PVA capsules and their pores were studied by using scanning electron microscopy.The entrapment-adsorption of dimethylglioxime and ethylenediaminetetracetate by the capsules were studied.The removal of the ion nickel (II) and copper (II), was more effective than by using unloaded capsules.

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