Preparation of the orgamomodified cellulose acetate membranes for adsorption of the ions Cu(II), Cd(II), Mn(II) AND Ni(II).

Submitted by Karine Ribeiro (karinelg.ribeiro@gmail.com) on 2015-04-06T16:56:01Z No. of bitstreams: 1 ARTIGO_PreparaçãoMembranasAcetato.pdf: 275769 bytes, checksum: 4e4e930c72de0e298bf0d7646b24a1cb (MD5)Approved for entry into archive by Oliveira Flávia (flavia@sisbin.ufop.br) on 2015-04-07T17:56:03Z (GMT) No. of bitstreams: 1 ARTIGO_PreparaçãoMembranasAcetato.pdf: 275769 bytes, checksum: 4e4e930c72de0e298bf0d7646b24a1cb (MD5)Made available in DSpace on 2015-04-09T10:57:43Z (GMT). No. of bitstreams: 1 ARTIGO_PreparaçãoMembranasAcetato.pdf: 275769 bytes, checksum: 4e4e930c72de0e298bf0d7646b24a1cb (MD5) Previous issue date: 2010Cellulose acetate polymeric membranes had been prepared by a procedure of two steps, combining the method of phase inversion and the technique of hydrolysis-deposition. The first step was the preparation of the membrane, and together was organomodified with tetraethylortosilicate and 3-aminopropyltrietoxysilane. Parameters that exert influence in the complexation of the metallic ion, as pH, time of complexation, metal concentration, had been studied in laboratory using tests of metal removal. The membranes had presented resistance mechanics and reactivity to cations, being able to be an alternative for the removal, daily pay-concentration or in the study of the lability of metals complexed