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

Química Nova

Antoninho Valentini²  Mauro C. M. Laranjeira²  Simone Fiori²  Valfredo T. De Fávere²  Marilene Klug¹ 

[1] ,Universidade Federal de Santa Catarina Departamento de Química Florianópolis SC

关键词: chitosan;    adsorption;    capsules;   

DOI  :  10.1590/S0100-40422000000100003

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
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