Autori: Cosmin Corobea, Dan Donescu, Sorin Raditoiu, Stefan Ioan Voicu, Gheorghe Nechifor

Editorial: SYSCOM, Revista de Chimie, 57(9), p.981-987, 2006.

Rezumat:

Increasing the preformance of an ultrafiltation procces can be achieved by a series of techniques related to the colloidal ultrafiltration. One of the most promissing technique is represented by the main colloidal filtration, in which the isolated sistem is aditivated with functionalised nanoparticles. In this paper, the cupric ions separation is achieved using a polysulphone membrane and complexant composite nanoparticles based on poly(vinyl acetate), poly(vinyl alchool) and sodium montmorillonite, functionalised whith a o-hydroxy-carboxylic azoic dye. The retention of cupric ions is characterised by a minimum yield of 80 %. The specific details regarding the hybrid nanoparticles synthesis are also presented.

Cuvinte cheie: nanoparticule functionalizate, membrane, ultrafiltrare, ultrafiltrare coloidala, separarea cuprului. // functionalised nonoparticles, membranes, colloidal ultrafiltration, cooper separation