MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONS

The microencapsulation of the non-specific basic extractant trioctylamine in polymeric matrices synthesized from styrene and divinylbenzene was studied. The microcapsules were prepared by adding the amine compound during in situ free radical suspension polymerization using benzoyl peroxide as the in...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	FONSECA,C, ARANEDA,C, YAZDANI-PEDRAM,M, BORRMANN,T, BASUALTO,C, SAPAG,J, VALENZUELA,F
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2010
Materias:	Microcapsules Trioctylamine Metals Adsorption Wastewater treatment
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000300030
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-97072010000300030
record_format	dspace
spelling	oai:scielo:S0717-970720100003000302011-01-25MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONSFONSECA,CARANEDA,CYAZDANI-PEDRAM,MBORRMANN,TBASUALTO,CSAPAG,JVALENZUELA,F Microcapsules Trioctylamine Metals Adsorption Wastewater treatment The microencapsulation of the non-specific basic extractant trioctylamine in polymeric matrices synthesized from styrene and divinylbenzene was studied. The microcapsules were prepared by adding the amine compound during in situ free radical suspension polymerization using benzoyl peroxide as the initiator and using variable proportions of both monomers. SEM analysis shows that the microcapsules have a spherical shape presenting an average surface area of 480 m² g-1 and apore size around 0.5 to 1.8 mu. Synthesis of the microspheres was affected by the amount of extractant used and by the proportionof both monomers during their preparation. The obtained microcapsules were used for the sorptive removal of Zn(II) and Cu(II) ions from chloride aqueous solutions, reaching extraction extents near 90% under the best conditions, following an anion-exchange mechanism between the metallic ions and the extractant immobilized onto the microcapsules. Zn(II) and Cu(II) sorption kinetics experiments were performed and efficient uptake of both Metals within a few minutes was measured. The experimental results were explained using a pseudo-second-order rate kinetics model, which fit the results of chemisorption of both Metals onto the microcapsules well.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.55 n.3 20102010-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000300030en10.4067/S0717-97072010000300030
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Microcapsules Trioctylamine Metals Adsorption Wastewater treatment
spellingShingle	Microcapsules Trioctylamine Metals Adsorption Wastewater treatment FONSECA,C ARANEDA,C YAZDANI-PEDRAM,M BORRMANN,T BASUALTO,C SAPAG,J VALENZUELA,F MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONS
description	The microencapsulation of the non-specific basic extractant trioctylamine in polymeric matrices synthesized from styrene and divinylbenzene was studied. The microcapsules were prepared by adding the amine compound during in situ free radical suspension polymerization using benzoyl peroxide as the initiator and using variable proportions of both monomers. SEM analysis shows that the microcapsules have a spherical shape presenting an average surface area of 480 m² g-1 and apore size around 0.5 to 1.8 mu. Synthesis of the microspheres was affected by the amount of extractant used and by the proportionof both monomers during their preparation. The obtained microcapsules were used for the sorptive removal of Zn(II) and Cu(II) ions from chloride aqueous solutions, reaching extraction extents near 90% under the best conditions, following an anion-exchange mechanism between the metallic ions and the extractant immobilized onto the microcapsules. Zn(II) and Cu(II) sorption kinetics experiments were performed and efficient uptake of both Metals within a few minutes was measured. The experimental results were explained using a pseudo-second-order rate kinetics model, which fit the results of chemisorption of both Metals onto the microcapsules well.
author	FONSECA,C ARANEDA,C YAZDANI-PEDRAM,M BORRMANN,T BASUALTO,C SAPAG,J VALENZUELA,F
author_facet	FONSECA,C ARANEDA,C YAZDANI-PEDRAM,M BORRMANN,T BASUALTO,C SAPAG,J VALENZUELA,F
author_sort	FONSECA,C
title	MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONS
title_short	MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONS
title_full	MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONS
title_fullStr	MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONS
title_full_unstemmed	MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONS
title_sort	microencapsulation of trioctylamine in polymeric matrices for removing zn(ii) and cu(ii) from chloride aqueous solutions
publisher	Sociedad Chilena de Química
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000300030
work_keys_str_mv	AT fonsecac microencapsulationoftrioctylamineinpolymericmatricesforremovingzniiandcuiifromchlorideaqueoussolutions AT aranedac microencapsulationoftrioctylamineinpolymericmatricesforremovingzniiandcuiifromchlorideaqueoussolutions AT yazdanipedramm microencapsulationoftrioctylamineinpolymericmatricesforremovingzniiandcuiifromchlorideaqueoussolutions AT borrmannt microencapsulationoftrioctylamineinpolymericmatricesforremovingzniiandcuiifromchlorideaqueoussolutions AT basualtoc microencapsulationoftrioctylamineinpolymericmatricesforremovingzniiandcuiifromchlorideaqueoussolutions AT sapagj microencapsulationoftrioctylamineinpolymericmatricesforremovingzniiandcuiifromchlorideaqueoussolutions AT valenzuelaf microencapsulationoftrioctylamineinpolymericmatricesforremovingzniiandcuiifromchlorideaqueoussolutions
_version_	1718445435352252416

MICROENCAPSULATION OF TRIOCTYLAMINE IN POLYMERIC MATRICES FOR REMOVING Zn(II) AND Cu(II) FROM CHLORIDE AQUEOUS SOLUTIONS

Ejemplares similares