DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTS

Dysprosium colloids in organic solvents (2-methoxyethanol, 2-propanol and 1,2-dimethoxyethane) have been obtained by the CLD method al 77 K. These colloids were characterized by zeta potentials, UV-Vis, TEM, electron diffraction and EDX measurements. Colloid stability depends on both solvent and met...

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Autores principales:	CÁRDENAS TRIVIÑO,GALO, GODOY GUZMÁN,OLIVIA, CONTRERAS,GUILLERMO
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2009
Materias:	Dysprosium colloids nanoparticles luminescence zeta potential
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000100002
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spelling	oai:scielo:S0717-970720090001000022009-05-12DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTSCÁRDENAS TRIVIÑO,GALOGODOY GUZMÁN,OLIVIACONTRERAS,GUILLERMO Dysprosium colloids nanoparticles luminescence zeta potential Dysprosium colloids in organic solvents (2-methoxyethanol, 2-propanol and 1,2-dimethoxyethane) have been obtained by the CLD method al 77 K. These colloids were characterized by zeta potentials, UV-Vis, TEM, electron diffraction and EDX measurements. Colloid stability depends on both solvent and metal concentration. The highest stability was obtained in 2-methoxyethanol, which is in agreement with previous results for other lanthanide colloids already reported. Zeta Potential (ξ) of the colloids ranges between 0.1430 and 1.945 mV. UV-Vis spectra exhibit bands in the UV región. 2-methoxyethanol shows bands at 211 and 283 nm, which is very similar to 1, 2-dimethoxyethane colloids (222 and 273 nm). However, the 2-propanol exhibits a band at 207 nm for a 2.5E-4 M concentration. At the TEM particle size distribution, 2-methoxyethanol colloid exhibits ranges from 2.5 to 11.6 nm, but the 2-propanol shows ranges from 2.5 to 4.3 nm, depending on the polarity of the solvent. The electron diffraction gives the most common phases, corresponding to Dy (002) and Dy(2)0(3) (110). EDX confirms the metal presence in the colloids. Luminescence measurements for Dy-2-methoxyethanol at 280 nm exhibit a higher quantum yield at 2.0E-3 and 5.0E-4 which indicates a higher transfer from the metal ion to the solvent.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.54 n.1 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000100002en10.4067/S0717-97072009000100002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Dysprosium colloids nanoparticles luminescence zeta potential
spellingShingle	Dysprosium colloids nanoparticles luminescence zeta potential CÁRDENAS TRIVIÑO,GALO GODOY GUZMÁN,OLIVIA CONTRERAS,GUILLERMO DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTS
description	Dysprosium colloids in organic solvents (2-methoxyethanol, 2-propanol and 1,2-dimethoxyethane) have been obtained by the CLD method al 77 K. These colloids were characterized by zeta potentials, UV-Vis, TEM, electron diffraction and EDX measurements. Colloid stability depends on both solvent and metal concentration. The highest stability was obtained in 2-methoxyethanol, which is in agreement with previous results for other lanthanide colloids already reported. Zeta Potential (ξ) of the colloids ranges between 0.1430 and 1.945 mV. UV-Vis spectra exhibit bands in the UV región. 2-methoxyethanol shows bands at 211 and 283 nm, which is very similar to 1, 2-dimethoxyethane colloids (222 and 273 nm). However, the 2-propanol exhibits a band at 207 nm for a 2.5E-4 M concentration. At the TEM particle size distribution, 2-methoxyethanol colloid exhibits ranges from 2.5 to 11.6 nm, but the 2-propanol shows ranges from 2.5 to 4.3 nm, depending on the polarity of the solvent. The electron diffraction gives the most common phases, corresponding to Dy (002) and Dy(2)0(3) (110). EDX confirms the metal presence in the colloids. Luminescence measurements for Dy-2-methoxyethanol at 280 nm exhibit a higher quantum yield at 2.0E-3 and 5.0E-4 which indicates a higher transfer from the metal ion to the solvent.
author	CÁRDENAS TRIVIÑO,GALO GODOY GUZMÁN,OLIVIA CONTRERAS,GUILLERMO
author_facet	CÁRDENAS TRIVIÑO,GALO GODOY GUZMÁN,OLIVIA CONTRERAS,GUILLERMO
author_sort	CÁRDENAS TRIVIÑO,GALO
title	DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTS
title_short	DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTS
title_full	DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTS
title_fullStr	DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTS
title_full_unstemmed	DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTS
title_sort	dysprosium colloids prepared in polar organic solvents
publisher	Sociedad Chilena de Química
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000100002
work_keys_str_mv	AT cardenastrivinogalo dysprosiumcolloidspreparedinpolarorganicsolvents AT godoyguzmanolivia dysprosiumcolloidspreparedinpolarorganicsolvents AT contrerasguillermo dysprosiumcolloidspreparedinpolarorganicsolvents
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DYSPROSIUM COLLOIDS PREPARED IN POLAR ORGANIC SOLVENTS

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